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Disulfur

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Frederix, Pim W. J. M.; Yang, Chung-Hsin; Groenenboom, Gerrit C.; Parker, David H.; Alnama, Koutayba; Western, Colin M.; Orr-Ewing, Andrew J. (2009). "Photodissociation Imaging of Diatomic Sulfur (S2)†".
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Tardif, Sylvie L.; Rys, Andrzej Z.; Abrams, Charles B.; Abu-Yousef, Imad A.; Lesté-Lasserre, Pierre B. F.; Schultz, Erwin K. V.; Harpp, David N. (1997). "Recent chemistry of the chalcogen diatomics".
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Makarov, Sergei V.; Makarova, Anna S.; Silaghi-Dumitrescu, Radu (2014). "Sulfoxylic and thiosulfurous acids and their dialkoxy derivatives".
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This violet gas is generated by heating sulfur above 720 °C, comprising 99% of the vapor at low pressure (1 mm Hg) at 530 °C.
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Ahearn, M. F.; Schleicher, D. G.; Feldman, P. D. (1983). "The discovery of S2 in comet IRAS-Araki-Alcock 1983d".
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molecule but rarely occurs at room temperature. This violet gas is the dominant species in hot sulfur vapors. S
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Eckert, Bodo; Steudel, Ralf (2003). "Molecular Spectra of Sulfur Molecules and Solid Sulfur Allotropes".
765: 720: 645:, or the thermal decomposition of dialkoxy disulfides. However, the evidence for singlet state is only 66: 56: 1083: 1041: 980: 889: 880:
Hill, R.A.; Esherick, P.; Owyoung, A. (1983). "High-resolution stimulated Raman spectroscopy of O2".
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Lellouch, E. (January 2005). "Io's Atmosphere and Surface-Atmosphere Interactions".
614:. It has the S-S bond length of 189 pm, much shorter than the S-S single bonds in S 209: 1249: 1219: 956: 813: 646: 627: 578:
Gaseous disulfur has been detected emanating from the surface of Jupiter's moon
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Spencer, J. R. (2000). "Discovery of Gaseous S2 in Io's Pele Plume".
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Except where otherwise noted, data are given for materials in their
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consists of a band at 715 cm. The corresponding O-O band for O
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Steudel, Ralf; Eckert, Bodo (2003). "Solid Sulfur Allotropes".
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is one of the minor components of the atmosphere of
1211: 1130: 637:Singlet disulfur is believed to be the product of 208: 656:, with a mean lifespan of 7.5 min in sunlight. 649:-like cycloadditions, and not spectroscopic. 530:Disulfur can be produced when an atmosphere of 107: 1105: 845:Elemental Sulfur and Sulfur-Rich Compounds II 8: 683:Elemental Sulfur and Sulfur-Rich Compounds I 534:is irradiated with UV light using a mercury 515:is usually described in the context of the 1112: 1098: 1090: 630:is 430 kJ/mol compared to 498 kJ/mol for O 241: 171: 26: 992: 671:ebi.ac.uk/chebi/searchId.do?chebiId=29387 1281: 1271: 1261: 1251: 1241: 1231: 1221: 1200: 1190: 1180: 1170: 1160: 1150: 1140: 664: 287: 262: 237: 919:CRC Handbook of Chemistry and Physics 504:, which is predominantly composed of 269:Key: MAHNFPMIPQKPPI-UHFFFAOYSA-N 151: 7: 606:, with two unpaired electrons like O 973:The Journal of Physical Chemistry A 851:. Vol. 231. pp. 181–191. 199: 626:is found at 1556 cm. The S-S 25: 922:(87th ed.). Boca Raton, FL: 882:Journal of Molecular Spectroscopy 689:. Vol. 230. pp. 58–68. 1077: 447: 42: 33: 443:(at 25 °C , 100 kPa). 1310:Homonuclear diatomic molecules 618:, which are 206 pm long. Its 311: 1: 957:10.1002/9780470682531.pat0829 814:10.1126/science.288.5469.1208 779:10.1016/S0040-4020(97)00555-3 916:Lide, David R., ed. (2006). 902:10.1016/0022-2852(83)90029-2 849:Topics in Current Chemistry 687:Topics in Current Chemistry 643:diphenylphosphine dibromide 1331: 492:. It is analogous to the 1034:The Astrophysical Journal 742:10.1007/s11214-005-1957-z 652:Triplet disulfur readily 437: 420: 345: 298: 278: 253: 91: 77: 65: 55: 50: 41: 32: 582:, from the vicinity of 570:or COS are irradiated. 511:. The instability of S 721:Space Science Reviews 594:The ground state of S 67:Systematic IUPAC name 1305:Allotropes of sulfur 1086:at Wikimedia Commons 1046:1983ApJ...274L..99A 985:2009JPCA..11314995F 979:(52): 14995–15005. 894:1983JMoSp.100..119H 806:2000Sci...288.1208S 800:(5469): 1208–1210. 773:(36): 12225–12236. 734:2005SSRv..116..211L 329: g·mol 29: 574:Natural occurrence 488:with the formula S 470:Infobox references 421:Related compounds 27: 1292: 1291: 1124:chemical elements 1082:Media related to 1003:10.1021/jp905104u 866:978-3-540-40378-4 704:978-3-540-40191-9 486:diatomic molecule 478:Chemical compound 476: 475: 427:Related compounds 222:CompTox Dashboard 133:Interactive image 16:(Redirected from 1322: 1315:Gases with color 1285: 1275: 1265: 1255: 1245: 1235: 1225: 1204: 1194: 1184: 1174: 1164: 1154: 1144: 1114: 1107: 1100: 1091: 1081: 1066: 1065: 1029: 1023: 1022: 996: 967: 961: 960: 944: 938: 937: 912: 906: 905: 877: 871: 870: 840: 834: 833: 789: 783: 782: 760: 754: 753: 728:(1–2): 211–224. 715: 709: 708: 678: 672: 669: 654:photodissociates 517:double bond rule 460: 454: 451: 450: 412: 385: 361: 346:Thermochemistry 328: 313: 306:Chemical formula 266:InChI=1S/S2/c1-2 246: 245: 230: 228: 212: 201: 185:Gmelin Reference 175: 155: 135: 111: 46: 37: 30: 21: 1330: 1329: 1325: 1324: 1323: 1321: 1320: 1319: 1295: 1294: 1293: 1288: 1283: 1278: 1273: 1268: 1263: 1258: 1253: 1248: 1243: 1238: 1233: 1228: 1223: 1218: 1207: 1202: 1197: 1192: 1187: 1182: 1177: 1172: 1167: 1162: 1157: 1152: 1147: 1142: 1137: 1126: 1118: 1074: 1069: 1031: 1030: 1026: 994:10.1.1.511.5087 969: 968: 964: 946: 945: 941: 934: 915: 913: 909: 879: 878: 874: 867: 842: 841: 837: 791: 790: 786: 762: 761: 757: 717: 716: 712: 705: 680: 679: 675: 670: 666: 662: 633: 625: 617: 609: 597: 592: 576: 569: 565: 561: 557: 553: 549: 545: 541: 536:photosensitizer 525: 514: 509: 499: 491: 479: 472: 467: 466: 465:  ?) 456: 452: 448: 444: 428: 413: 410: 404: 400: 397: 396:Std enthalpy of 389:228.17 J K mol 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123: 118: 117: 110: 106: 105: 103: 100: 96: 95: 90: 85: 83:Sulfur dimer 76: 68: 64: 58: 54: 49: 45: 40: 36: 31: 19: 1259: 1037: 1033: 1027: 976: 972: 965: 948: 942: 917: 910: 885: 881: 875: 844: 838: 797: 793: 787: 770: 764: 758: 725: 719: 713: 682: 676: 667: 651: 636: 593: 584:Pele volcano 577: 529: 526: 481: 480: 405: 378: 357: 92:Identifiers 82: 78:Other names 766:Tetrahedron 647:Diels-Alder 639:trisulfides 628:bond energy 299:Properties 153:CHEBI:29387 1299:Categories 660:References 590:Properties 538:or when CS 322:Molar mass 164:ChemSpider 120:3D model ( 109:23550-45-0 99:CAS Number 57:IUPAC name 1062:0004-637X 1011:1089-5639 989:CiteSeerX 949:Peroxides 924:CRC Press 822:0036-8075 750:121867974 604:diradical 523:Synthesis 398:formation 372:Std molar 86:Disulphur 71:Disulfene 28:Disulfur 1121:Diatomic 1084:Disulfur 1019:19754091 830:10817990 494:dioxygen 482:Disulfur 60:Disulfur 1042:Bibcode 1040:: L99. 981:Bibcode 890:Bibcode 802:Bibcode 794:Science 730:Bibcode 600:triplet 484:is the 463:what is 461: ( 374:entropy 210:5460602 197:PubChem 173:4574100 1131:Common 1060:  1017:  1009:  991:  930:  863:  828:  820:  748:  701:  566:S, PSF 458:verify 455:  283:SMILES 51:Names 1212:Other 746:S2CID 641:with 598:is a 327:64.12 258:InChI 144:ChEBI 122:JSmol 1058:ISSN 1015:PMID 1007:ISSN 928:ISBN 861:ISBN 826:PMID 818:ISSN 699:ISBN 610:and 602:: a 558:or C 341:0 D 190:753 1050:doi 1038:274 999:doi 977:113 953:doi 898:doi 886:100 853:doi 810:doi 798:288 775:doi 738:doi 726:116 691:doi 550:, S 542:, H 532:COS 409:298 382:298 290:S=S 227:EPA 200:CID 1301:: 1280:Rb 1270:Li 1230:Ar 1220:He 1189:Br 1179:Cl 1056:. 1048:. 1036:. 1013:. 1005:. 997:. 987:. 975:. 926:. 896:. 884:. 859:. 847:. 824:. 816:. 808:. 796:. 771:53 769:. 744:. 736:. 724:. 697:. 685:. 634:. 612:SO 586:. 580:Io 554:Cl 519:. 506:SO 502:Io 401:(Δ 1282:2 1272:2 1262:2 1260:S 1252:2 1250:P 1242:2 1240:C 1232:2 1222:2 1201:2 1199:I 1191:2 1181:2 1171:2 1169:F 1161:2 1159:O 1151:2 1149:N 1141:2 1139:H 1113:e 1106:t 1099:v 1064:. 1052:: 1044:: 1021:. 1001:: 983:: 959:. 955:: 936:. 914:( 904:. 900:: 892:: 869:. 855:: 832:. 812:: 804:: 781:. 777:: 752:. 740:: 732:: 707:. 693:: 632:2 624:2 616:8 608:2 596:2 568:3 564:4 562:H 560:2 556:2 552:2 548:2 546:S 544:2 540:2 513:2 508:2 498:2 490:2 453:Y 411:) 406:H 403:f 384:) 379:S 377:( 360:) 358:C 356:( 315:2 312:S 229:) 225:( 124:) 20:)

Index

Diatomic sulfur
Ball and stick model of disulfur molecule

IUPAC name
Systematic IUPAC name
CAS Number
23550-45-0
JSmol
Interactive image
ChEBI
CHEBI:29387
ChemSpider
4574100
Gmelin Reference
PubChem
5460602
CompTox Dashboard
DTXSID20420100
Edit this at Wikidata
InChI
SMILES
Chemical formula
Molar mass
Dipole moment
Heat capacity
Std molar
entropy

Std enthalpy of
formation

Triplet oxygen
standard state
verify

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