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Cis–trans isomerism

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Polarity is key in determining relative boiling point as strong intermolecular forces raise the boiling point. In the same manner, symmetry is key in determining relative melting point as it allows for better packing in the solid state, even if it does not alter the polarity of the molecule. Another
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is determined by the CIP rules; higher atomic numbers are given higher priority. For each of the two atoms in the double bond, it is necessary to determine the priority of each substituent. If both the higher-priority substituents are on the same side, the arrangement is
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Wavy single bonds are the standard way to represent unknown or unspecified stereochemistry or a mixture of isomers (as with tetrahedral stereocenters). A crossed double-bond has been used sometimes; it is no longer considered an acceptable style for general use by
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In the case of geometric isomers that are a consequence of double bonds, and, in particular, when both substituents are the same, some general trends usually hold. These trends can be attributed to the fact that the dipoles of the substituents in a
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Craig, N. C.; Chen, A.; Suh, K. H.; Klee, S.; Mellau, G. C.; Winnewisser, B. P.; Winnewisser, M. (1997). "Contribution to the Study of the Gauche Effect. The Complete Structure of the
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are unambiguous in all cases, and therefore are especially useful for tri- and tetrasubstituted alkenes to avoid any confusion about which groups are being identified as
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isomer on the other hand, this does not occur because the two C−Cl bond moments cancel and the molecule has a net zero dipole moment (it does however have a non-zero
1305: 98:, that is, pairs of molecules which have the same formula but whose functional groups are in different orientations in three-dimensional space. 1989: 1509:
Bingham, Richard C. (1976). "The stereochemical consequences of electron delocalization in extended π systems. An interpretation of the
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where the two geometric forms easily interconvert, such as most open-chain single-bonded structures; instead, the terms "
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isomer, the two Y ligands are adjacent to each other at 90°, as is true for the two chlorine atoms shown in green in
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alkenes, which are generally more polar and less symmetrical, have higher boiling points and lower melting points.
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alkenes, which are less polar and more symmetrical, have lower boiling points and higher melting points, and
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These differences can be very small, as in the case of the boiling point of straight-chain alkenes, such as
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isomer, the dipoles of the substituents will cancel out due to being on opposite sides of the molecule.
189:, whereas when the substituents are oriented in opposing directions, the diastereomer is referred to as 1845: 1767: 1582: 553: 74:" are from Latin: "this side of" and "the other side of", respectively. In the context of chemistry, 2067: 2048: 1651: 1574: 1336: 380: 121: 1227: 1940: 1705: 1244: 1054: 584:
isomer, has a melting point of 13.4 °C, making it a liquid at room temperature, while the
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isomers suffer a 1.10 kcal/mol stability penalty. Exceptions to this rule exist, such as
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notation should not be used for alkenes with two or more different substituents. Instead the
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isomer, elaidic acid, has the much higher melting point of 43 °C, due to the straighter
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or ring structures. In both cases the rotation of bonds is restricted or prevented. When the
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The differing properties of the two isomers of butenedioic acid are often very different.
20: 1171:, two isomers also exist. (Here M is a metal atom, and X and Y are two different types of 726:(FN=NF), and several other halogen- and oxygen-substituted ethylenes. In these cases, the 224: 8: 723: 649: 217: 982:
isomer is generally the more reactive of the two, being the only isomer that can reduce
2072: 1802: 1599: 1575:"Graphical representation of stereochemical configuration (IUPAC Recommendations 2006)" 1432: 1160: 1137: 919:)-2-chlorobut-2-ene (the chlorine and C4 are together because C1 and C4 are opposite). 703: 372: 356: 265: 229: 1187:
isomer shown at right, the two Cl atoms are on opposite sides of the central Co atom.
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Pairs of molecules with same chemical formula showing different spatial orientations
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to have antitumor activity, and is now a chemotherapy drug known by the short name
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isomers have distinct physical properties. Their differing shapes influences the
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combine to give an overall molecular dipole, so that there are intermolecular
2061: 1314:, 2nd ed. (the "Gold Book") (1997). Online corrected version: (2006–) " 1089: 1073: 887:
systems compare different groups on the alkene, it is not strictly true that
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Charlton T. Lewis, Charles Short, A Latin Dictionary (Clarendon Press, 1879)
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isomer cannot line its hydrogens up suitably to reduce the alkene, but the
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isomer being able to pack more tightly, and is solid at room temperature.
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occur both in organic molecules and in inorganic coordination complexes.
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effect exhibited by 1,2-disubstituted ethylenes and related phenomena".
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notation is used based on the priority of the substituents using the
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Ouellette, Robert J.; Rawn, J. David (2015). "Alkenes and Alkynes".
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isomer in this case has a boiling point of 60.3 °C, while the
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to each other. Metal carbonyl compounds can be characterized as
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Advanced Organic Chemistry, Reactions, Mechanisms and structure
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to each other. Whether a molecular configuration is designated
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with octahedral or square planar geometries can also exhibit
929: 907:-2-chlorobut-2-ene (the two methyl groups, C1 and C4, on the 611:
isomer will add up to give an overall molecular dipole. In a
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for absolute configuration. The IUPAC standard designations
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isomers can be larger if polar bonds are present, as in the
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isomers. This difference is attributed to the unfavorable
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Williams, Dudley H.; Fleming, Ian (1989). "Table 3.27".
1210:) isomerism, in which different numbers of ligands are 835:) means "opposed" in the sense of "opposite". That is, 86:
conveys that they are on opposing (transverse) sides.
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The two isomeric complexes, cisplatin and transplatin
670:(range: 12–18 Hz; typical: 15 Hz) than for 619:
isomers also tend to have lower densities than their
1100:-diamminedichloroplatinum(II), was shown in 1969 by 252: 153:
or geometric isomerism is classified as one type of
139:, "geometric isomerism" is an obsolete synonym of " 922: 674:(range: 0–12 Hz; typical: 8 Hz) isomers. 367:isomer has a boiling point of 47.5 °C. In the 955:isomerism can also occur in inorganic compounds. 2059: 1540: 932:but may still be required by computer software. 19:"Cis-trans" redirects here. For other uses, see 1483: 642:alkenes, in general, are more symmetrical than 193:. An example of a small hydrocarbon displaying 205:. 1,2-Dichlorocyclohexane is another example. 1659: 1422: 1190:A related type of isomerism in octahedral MX 830: 820: 572:example of this is the relationship between 978:isomerism. As with organic compounds, the 864:; if on opposite sides, the arrangement is 1666: 1652: 1566: 1486:Spectroscopic Methods in Organic Chemistry 1412:(60th ed.). 1979–1980. p. C-298. 268:, boiling, and especially melting points. 1626:IUPAC definition of "geometric isomerism" 1049: 1063: 934: 760: 181:are oriented in the same direction, the 40: 29: 1970:Pseudoasymmetric (pseudochiral) centers 1950:CIP (Cahn–Ingold–Prelog) priority rules 1572: 1508: 1454: 1452: 1354: 1002:isomer, being shaped differently, can. 795:Cahn–Ingold–Prelog (CIP) priority rules 2060: 1360: 1072:For example, there are two isomers of 943: 734:isomer. This phenomenon is called the 1647: 1621:IUPAC definition of "stereoisomerism" 1458: 1410:CRC Handbook of Chemistry and Physics 1367:Virtual Textbook of Organic Chemistry 1120:to control which isomer is produced. 769:than chlorine, so this alkene is the 379:(or Keesom forces), which add to the 1449: 383:and raise the boiling point. In the 160: 1673: 13: 1488:(4th rev. ed.). McGraw-Hill. 1433:10.1016/B978-0-12-802444-7.00004-5 1311:Compendium of Chemical Terminology 994:, but for a different reason: the 712:heat of formation group additivity 14: 2089: 1614: 253:Comparison of physical properties 1545:Rotamer of 1,2-Difluoroethane". 1334: 1136: 1127: 1025: 1020: 1013: 1008: 923:Undefined alkene stereochemistry 446: 439: 404: 397: 347:isomer. The differences between 311: 304: 281: 274: 228: 223: 216: 211: 1534: 1502: 1425:Principles of Organic Chemistry 847:has the higher-priority groups 839:has the higher-priority groups 743: 730:isomer is more stable than the 702:isomers have a less-exothermic 1477: 1416: 1402: 1381: 1328: 1299: 1284: 1: 1463:(3rd ed.). p. 111. 1277: 686:isomers are more stable than 343:isomer and 36 °C in the 339:, which is 37 °C in the 682:Usually for acyclic systems 677: 630:alkenes tend to have higher 7: 1369:. Michigan State University 1233: 1096:isomer, whose full name is 958: 694:of the substituents in the 10: 2094: 2032:Octahedral propeller twist 1768:Arene substitution pattern 1583:Pure and Applied Chemistry 1573:Brecher, Jonathan (2006). 754: 554:Acid dissociation constant 371:isomer the two polar C–Cl 120:are not used for cases of 18: 2046: 2030: 2007: 1988: 1968: 1948: 1939: 1921: 1909: 1886: 1863: 1844: 1826: 1801: 1766: 1739: 1713: 1706:Configuration descriptors 1704: 1681: 710:stability. In the Benson 486:Properties of isomers of 246:-1,2-dichlorocyclohexane 155:configurational isomerism 2049:Category:Stereochemistry 1361:Reusch, William (2010). 381:London dispersion forces 240:-1,2-dichlorocyclohexane 122:conformational isomerism 1941:Absolute configurations 1846:Three identical ligands 1596:10.1351/pac200678101897 1324:10.1351/goldbook.G02620 2078:Orientation (geometry) 2009:Relative configuration 1363:"Stereoisomers Part I" 1245:Descriptor (chemistry) 1069: 1055:Coordination complexes 1050:Coordination complexes 940: 939:Alkene stereochemistry 831: 821: 774: 638:in inert solvents, as 173:stereoisomers contain 49: 38: 25:trans (disambiguation) 1828:Syn and anti addition 1631:IUPAC definition of " 1459:March, Jerry (1985). 1389:"Chemicalland values" 1341:University of Calgary 1240:Chirality (chemistry) 1228:infrared spectroscopy 1067: 938: 765:Bromine has a higher 764: 542:water solubility, g/L 470:-9-octadecenoic acid 458:-9-octadecenoic acid 44: 33: 1858:(facies, meridonal) 1391:. Chemicalland21.com 1267:Structural isomerism 1161:octahedral complexes 825:) means "together". 720:1,2-difluoroethylene 706:, indicating higher 626:As a general trend, 377:dipole–dipole forces 329:-1,2-dichloroethene 21:cis (disambiguation) 1865:In carbon skeletons 1528:10.1021/ja00418a036 1427:. pp. 95–132. 1316:geometric isomerism 1183:-, at left. In the 1108:. In contrast, the 970:) can also exhibit 944:Inorganic chemistry 915:to each other) is ( 724:1,2-difluorodiazene 698:isomer. Therefore, 506: 373:bond dipole moments 357:1,2-dichloroethenes 323:-1,2-dichloroethene 78:indicates that the 64:geometric isomerism 1088:, as explained by 1070: 941: 843:to each other and 775: 704:heat of combustion 692:steric interaction 653:coupling constants 580:; oleic acid, the 485: 428:-butenedioic acid 416:-butenedioic acid 185:is referred to as 179:substituent groups 50: 39: 2055: 2054: 2042: 2041: 1935: 1934: 1590:(10): 1897–1970. 1560:10.1021/ja963819e 1548:J. Am. Chem. Soc. 1516:J. Am. Chem. Soc. 1495:978-0-07-707212-4 1470:978-0-471-85472-2 1442:978-0-12-802444-7 1337:"Stereochemistry" 1200:facial–meridional 1102:Barnett Rosenberg 1047: 1046: 966:(and the related 829:(from the German 819:(from the German 666:, are larger for 569: 568: 531:melting point, °C 480: 479: 389:quadrupole moment 333: 332: 250: 249: 161:Organic chemistry 80:functional groups 2085: 2024: 2023: 2018: 2017: 1990:Optical rotation 1946: 1945: 1711: 1710: 1668: 1661: 1654: 1645: 1644: 1608: 1607: 1579: 1570: 1564: 1563: 1538: 1532: 1531: 1506: 1500: 1499: 1481: 1475: 1474: 1456: 1447: 1446: 1420: 1414: 1413: 1406: 1400: 1399: 1397: 1396: 1385: 1379: 1378: 1376: 1374: 1358: 1352: 1351: 1349: 1347: 1332: 1326: 1303: 1297: 1288: 1140: 1131: 1029: 1024: 1017: 1012: 1005: 1004: 834: 824: 664:NMR spectroscopy 507: 505: 484: 450: 443: 408: 401: 394: 393: 315: 308: 285: 278: 271: 270: 232: 227: 220: 215: 208: 207: 62:, also known as 2093: 2092: 2088: 2087: 2086: 2084: 2083: 2082: 2068:Stereochemistry 2058: 2057: 2056: 2051: 2038: 2026: 2021: 2020: 2015: 2014: 2003: 1984: 1964: 1931: 1917: 1905: 1882: 1859: 1840: 1822: 1797: 1762: 1735: 1700: 1699: 1695:Racemic mixture 1677: 1675:Stereochemistry 1672: 1617: 1612: 1611: 1577: 1571: 1567: 1539: 1535: 1507: 1503: 1496: 1482: 1478: 1471: 1457: 1450: 1443: 1421: 1417: 1408: 1407: 1403: 1394: 1392: 1387: 1386: 1382: 1372: 1370: 1359: 1355: 1345: 1343: 1333: 1329: 1304: 1300: 1289: 1285: 1280: 1236: 1197: 1193: 1170: 1166: 1157: 1156: 1155: 1154: 1143: 1142: 1141: 1133: 1132: 1087: 1083: 1079: 1052: 961: 946: 925: 903:. For example, 899:corresponds to 891:corresponds to 813:to each other. 759: 753: 680: 662:), measured by 661: 559: 503: 499: 495: 471: 459: 429: 417: 255: 163: 28: 17: 12: 11: 5: 2091: 2081: 2080: 2075: 2070: 2053: 2052: 2047: 2044: 2043: 2040: 2039: 2036: 2034: 2028: 2027: 2013: 2011: 2005: 2004: 1995:(+)-, (−)- or 1994: 1992: 1986: 1985: 1974: 1972: 1966: 1965: 1954: 1952: 1943: 1937: 1936: 1933: 1932: 1927: 1925: 1919: 1918: 1915: 1913: 1911:Spiro compound 1907: 1906: 1896: 1894: 1884: 1883: 1869: 1867: 1861: 1860: 1850: 1848: 1842: 1841: 1832: 1830: 1824: 1823: 1814: 1812: 1799: 1798: 1772: 1770: 1764: 1763: 1752: 1750: 1737: 1736: 1726: 1724: 1708: 1702: 1701: 1698: 1697: 1692: 1686: 1685: 1683: 1679: 1678: 1671: 1670: 1663: 1656: 1648: 1642: 1641: 1628: 1623: 1616: 1615:External links 1613: 1610: 1609: 1565: 1533: 1522:(2): 535–540. 1501: 1494: 1476: 1469: 1448: 1441: 1415: 1401: 1380: 1353: 1327: 1298: 1282: 1281: 1279: 1276: 1275: 1274: 1269: 1264: 1259: 1247: 1242: 1235: 1232: 1195: 1191: 1168: 1164: 1145: 1144: 1135: 1134: 1126: 1125: 1124: 1123: 1122: 1085: 1081: 1077: 1051: 1048: 1045: 1044: 1038: 1031: 1030: 1018: 960: 957: 945: 942: 924: 921: 777:In principle, 755:Main article: 752: 742: 708:thermochemical 679: 676: 659: 632:melting points 623:counterparts. 567: 566: 563: 560: 557: 550: 549: 546: 543: 539: 538: 535: 532: 528: 527: 524: 521: 517: 516: 513: 510: 501: 497: 478: 477: 465: 452: 451: 444: 436: 435: 423: 410: 409: 402: 331: 330: 324: 317: 316: 309: 301: 300: 294: 287: 286: 279: 266:dipole moments 254: 251: 248: 247: 241: 234: 233: 221: 162: 159: 135:According to 15: 9: 6: 4: 3: 2: 2090: 2079: 2076: 2074: 2071: 2069: 2066: 2065: 2063: 2050: 2045: 2035: 2033: 2029: 2012: 2010: 2006: 2002: 1998: 1993: 1991: 1987: 1982: 1978: 1973: 1971: 1967: 1962: 1958: 1953: 1951: 1947: 1944: 1942: 1938: 1930: 1926: 1924: 1920: 1914: 1912: 1908: 1903: 1899: 1895: 1893: 1889: 1885: 1880: 1876: 1872: 1868: 1866: 1862: 1857: 1853: 1849: 1847: 1843: 1839: 1835: 1831: 1829: 1825: 1821: 1817: 1813: 1811: 1809: 1805: 1800: 1795: 1791: 1787: 1783: 1779: 1775: 1771: 1769: 1765: 1760: 1756: 1751: 1749: 1747: 1743: 1738: 1733: 1729: 1725: 1723: 1721: 1717: 1712: 1709: 1707: 1703: 1696: 1693: 1691: 1688: 1687: 1684: 1680: 1676: 1669: 1664: 1662: 1657: 1655: 1650: 1649: 1646: 1640: 1638: 1634: 1629: 1627: 1624: 1622: 1619: 1618: 1605: 1601: 1597: 1593: 1589: 1585: 1584: 1576: 1569: 1561: 1557: 1553: 1550: 1549: 1544: 1537: 1529: 1525: 1521: 1518: 1517: 1512: 1505: 1497: 1491: 1487: 1480: 1472: 1466: 1462: 1455: 1453: 1444: 1438: 1434: 1430: 1426: 1419: 1411: 1405: 1390: 1384: 1368: 1364: 1357: 1342: 1338: 1331: 1325: 1321: 1317: 1313: 1312: 1307: 1302: 1296: 1292: 1287: 1283: 1273: 1270: 1268: 1265: 1263: 1260: 1258: 1256: 1252: 1248: 1246: 1243: 1241: 1238: 1237: 1231: 1229: 1225: 1221: 1217: 1213: 1209: 1205: 1201: 1198:complexes is 1188: 1186: 1182: 1178: 1174: 1163:of formula MX 1162: 1152: 1148: 1139: 1130: 1121: 1119: 1115: 1111: 1107: 1103: 1099: 1095: 1092:in 1893. The 1091: 1090:Alfred Werner 1075: 1074:square planar 1066: 1062: 1060: 1056: 1042: 1039: 1036: 1033: 1032: 1028: 1023: 1019: 1016: 1011: 1007: 1006: 1003: 1001: 997: 993: 989: 985: 981: 977: 973: 969: 965: 956: 954: 950: 937: 933: 931: 920: 918: 914: 911:backbone are 910: 906: 902: 898: 894: 890: 886: 882: 878: 874: 869: 867: 863: 858: 854: 850: 846: 842: 838: 833: 828: 823: 818: 814: 812: 808: 804: 800: 796: 792: 788: 784: 780: 772: 768: 763: 758: 750: 746: 741: 739: 738: 733: 729: 725: 721: 717: 713: 709: 705: 701: 697: 693: 689: 685: 675: 673: 669: 665: 658: 654: 651: 647: 645: 641: 637: 633: 629: 624: 622: 618: 614: 610: 604: 602: 598: 593: 591: 587: 583: 579: 575: 564: 561: 555: 552: 551: 547: 544: 541: 540: 536: 533: 530: 529: 525: 522: 519: 518: 515:fumaric acid 514: 511: 509: 508: 493: 489: 483: 475: 469: 466: 463: 457: 454: 453: 449: 445: 442: 438: 437: 433: 427: 424: 421: 415: 412: 411: 407: 403: 400: 396: 395: 392: 390: 386: 382: 378: 374: 370: 366: 362: 358: 354: 350: 346: 342: 338: 328: 325: 322: 319: 318: 314: 310: 307: 303: 302: 298: 295: 292: 289: 288: 284: 280: 277: 273: 272: 269: 267: 263: 259: 245: 242: 239: 236: 235: 231: 226: 222: 219: 214: 210: 209: 206: 204: 201:isomerism is 200: 196: 192: 188: 184: 180: 176: 172: 168: 158: 156: 152: 148: 146: 142: 138: 133: 131: 127: 123: 119: 116: 112: 108: 105: 101: 97: 96:stereoisomers 93: 89: 85: 81: 77: 73: 69: 65: 61: 59: 55: 47: 43: 36: 32: 26: 22: 2000: 1996: 1980: 1976: 1960: 1956: 1928: 1901: 1897: 1878: 1874: 1870: 1855: 1851: 1837: 1833: 1819: 1815: 1807: 1803: 1793: 1789: 1785: 1781: 1777: 1773: 1758: 1754: 1745: 1741: 1731: 1727: 1719: 1715: 1714: 1636: 1632: 1587: 1581: 1568: 1554:(20): 4789. 1551: 1546: 1542: 1536: 1519: 1514: 1510: 1504: 1485: 1479: 1460: 1424: 1418: 1409: 1404: 1393:. Retrieved 1383: 1371:. Retrieved 1366: 1356: 1344:. Retrieved 1340: 1330: 1309: 1301: 1294: 1286: 1254: 1250: 1223: 1219: 1215: 1211: 1207: 1203: 1189: 1184: 1180: 1176: 1158: 1150: 1146: 1118:trans effect 1109: 1097: 1093: 1071: 1058: 1053: 1040: 1034: 999: 995: 979: 975: 971: 968:diphosphenes 962: 952: 948: 947: 926: 916: 912: 904: 900: 896: 892: 888: 884: 880: 876: 872: 871:Because the 870: 865: 861: 856: 852: 848: 844: 840: 836: 826: 816: 815: 810: 806: 802: 798: 790: 786: 782: 778: 776: 770: 767:CIP priority 757:E–Z notation 748: 744: 735: 731: 727: 715: 699: 695: 687: 683: 681: 671: 667: 656: 648: 643: 639: 627: 625: 620: 616: 612: 608: 605: 600: 596: 594: 589: 585: 581: 578:elaidic acid 570: 491: 487: 481: 474:elaidic acid 467: 455: 432:fumaric acid 425: 413: 384: 368: 364: 360: 352: 348: 344: 340: 334: 326: 320: 296: 290: 261: 257: 256: 243: 237: 198: 194: 190: 186: 183:diastereomer 175:double bonds 170: 166: 165:Very often, 164: 154: 150: 149: 147:isomerism". 144: 140: 134: 132:" are used. 129: 125: 114: 110: 103: 99: 94:isomers are 91: 87: 83: 75: 71: 67: 63: 57: 53: 52: 51: 45: 34: 1335:Hunt, Ian. 1114:transplatin 1061:isomerism. 512:maleic acid 420:maleic acid 299:-2-pentene 118:descriptors 2062:Categories 1395:2010-06-22 1346:3 November 1293:Entry for 1278:References 1175:.) In the 737:cis effect 636:solubility 634:and lower 574:oleic acid 462:oleic acid 337:pent-2-ene 293:-2-pentene 48:-but-2-ene 37:-but-2-ene 2073:Isomerism 1888:Secondary 1810:isomerism 1722:isomerism 1690:Chirality 1272:Trans fat 1106:cisplatin 1059:cis-trans 1043:-diazene 909:but-2-ene 714:dataset, 678:Stability 646:alkenes. 203:but-2-ene 151:Cis–trans 60:isomerism 1923:Catenane 1892:tertiary 1748:notation 1639:isomers" 1604:97528124 1257:notation 1234:See also 1112:isomer ( 1037:-diazene 964:Diazenes 959:Diazenes 832:entgegen 822:zusammen 751:notation 1881:, cyclo 1744:– 1373:7 April 1173:ligands 992:alkanes 988:alkynes 984:alkenes 650:Vicinal 500:CH=CHCO 128:" and " 107:isomers 70:" and " 2037:Λ-, Δ- 1929:catena 1682:Topics 1602:  1492:  1467:  1439:  1262:Isomer 1226:using 1149:- and 773:isomer 595:Thus, 526:white 490:- and 359:. The 1916:spiro 1786:ortho 1757:)-, ( 1732:trans 1720:trans 1637:trans 1600:S2CID 1578:(PDF) 1306:IUPAC 1216:trans 1185:trans 1151:trans 1110:trans 1076:Pt(NH 1035:trans 996:trans 976:trans 953:trans 930:IUPAC 913:trans 905:trans 901:trans 877:trans 849:trans 811:trans 783:trans 732:trans 700:trans 684:trans 668:trans 640:trans 628:trans 617:Trans 613:trans 597:trans 590:trans 586:trans 565:3.03 523:white 520:color 492:trans 468:trans 426:trans 385:trans 365:trans 353:trans 345:trans 327:trans 297:trans 262:trans 238:trans 199:trans 191:trans 171:trans 145:trans 137:IUPAC 115:trans 104:trans 92:trans 84:trans 72:trans 58:trans 46:trans 1979:), ( 1959:), ( 1902:tert 1890:and 1838:anti 1816:endo 1804:Endo 1794:para 1790:meta 1543:Anti 1490:ISBN 1465:ISBN 1437:ISBN 1375:2015 1348:2023 1202:(or 1159:For 986:and 895:and 879:and 801:and 576:and 562:1.90 556:, pK 537:286 351:and 260:and 130:anti 113:and 102:and 23:and 2019:-, 1900:-, 1898:sec 1879:neo 1875:iso 1856:mer 1852:fac 1834:syn 1820:exo 1818:, 1808:exo 1784:- ( 1780:-, 1776:-, 1730:-, 1728:cis 1716:cis 1633:cis 1592:doi 1556:doi 1552:119 1524:doi 1511:cis 1429:doi 1320:doi 1318:". 1295:cis 1224:mer 1222:or 1220:fac 1214:or 1212:cis 1208:mer 1204:fac 1181:cis 1177:cis 1147:cis 1098:cis 1094:cis 1041:cis 1000:cis 990:to 980:cis 972:cis 949:Cis 893:cis 873:cis 855:or 841:cis 809:or 807:cis 779:cis 728:cis 716:cis 696:cis 688:cis 672:cis 644:cis 621:cis 609:cis 601:cis 582:cis 545:788 534:130 488:cis 456:cis 414:cis 391:). 369:cis 361:cis 349:cis 341:cis 321:cis 291:cis 258:Cis 244:cis 195:cis 187:cis 167:cis 141:cis 126:syn 111:Cis 100:Cis 88:Cis 76:cis 68:cis 54:Cis 35:cis 2064:: 2001:l- 1999:, 1997:d- 1877:, 1873:, 1854:, 1836:, 1792:, 1788:, 1761:)- 1598:. 1588:78 1586:. 1580:. 1520:98 1451:^ 1435:. 1365:. 1339:. 1308:, 1230:. 1084:Cl 868:. 740:. 722:, 660:HH 558:a1 548:7 496:HO 476:) 434:) 157:. 2025:- 2022:L 2016:D 1983:) 1981:s 1977:r 1975:( 1963:) 1961:S 1957:R 1955:( 1904:- 1871:n 1806:- 1796:) 1782:p 1778:m 1774:o 1759:Z 1755:E 1753:( 1746:Z 1742:E 1734:- 1718:– 1667:e 1660:t 1653:v 1635:– 1606:. 1594:: 1562:. 1558:: 1530:. 1526:: 1498:. 1473:. 1445:. 1431:: 1398:. 1377:. 1350:. 1322:: 1255:Z 1253:– 1251:E 1206:– 1196:3 1194:Y 1192:3 1169:2 1167:Y 1165:4 1153:- 1086:2 1082:2 1080:) 1078:3 974:– 951:– 917:Z 897:E 889:Z 885:Z 883:– 881:E 875:– 866:E 862:Z 857:Z 853:E 845:E 837:Z 827:E 817:Z 803:Z 799:E 791:Z 789:– 787:E 781:– 771:Z 749:Z 747:– 745:E 657:J 655:( 504:H 502:2 498:2 494:- 472:( 464:) 460:( 430:( 422:) 418:( 197:– 169:– 143:– 90:– 56:– 27:.

Index

cis (disambiguation)
trans (disambiguation)


functional groups
stereoisomers
isomers
descriptors
conformational isomerism
IUPAC
double bonds
substituent groups
diastereomer
but-2-ene




dipole moments




pent-2-ene
1,2-dichloroethenes
bond dipole moments
dipole–dipole forces
London dispersion forces
quadrupole moment

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