POLYIODIDE SALTS AND MOLECULAR-COMPLEXES .7. INTERACTION OF THIONES WITH MOLECULAR DIIODINE - THE CRYSTAL-STRUCTURES OF DITHIZONE DIIODINE, ETHYLENETHIOUREA-BIS(DIIODINE), BIS(ETHYLENETHIOUREA)-TRIS(DIIODINE), BIS(DITHIZONE)-HEPTAKIS(DIIODINE), AND 1-(1-IMIDAZOLIN-2-YL)-2-THIOXOIMIDAZOLIDINIUM TRIIODIDE-(ETHYLENETHIOUREA-DIIODINE)DI
POLYIODIDE SALTS AND MOLECULAR-COMPLEXES .7. INTERACTION OF THIONES WITH MOLECULAR DIIODINE - THE CRYSTAL-STRUCTURES OF DITHIZONE DIIODINE, ETHYLENETHIOUREA-BIS(DIIODINE), BIS(ETHYLENETHIOUREA)-TRIS(DIIODINE), BIS(DITHIZONE)-HEPTAKIS(DIIODINE), AND 1-(1-IMIDAZOLIN-2-YL)-2-THIOXOIMIDAZOLIDINIUM TRIIODIDE-(ETHYLENETHIOUREA-DIIODINE)DI
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DOI:
10.1021/ja00320a024
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发表时间:
1984-01-01
影响因子:
15
通讯作者:
SCHWOTZER, W
中科院分区:
文献类型:
--
作者:
HERBSTEIN, FH;SCHWOTZER, W
Abstract; The crystal structures of four neutral charge-transfer molecular compounds formed between dithizone or ethylenethiourea, as donors, and diiodine, as acceptor, are described. Dithizone-I2 is monoclinic (a= 12.233 (8) Á, b= 11.713 (8) Á, c= 12.030 (8) A, ß= 102.8 (1), Z= 4, space group P2l/n; RF= 0.059) and contains discrete moieties of the molecular formula with the diiodine fragment approximately normal to the dithizone fragment. Ethylenethiourea-2 (I2) is triclinic (a= 10.276 (7) A, b= 9.176 (6) A, c= 6.792 (5) A, a= 105.1 (1), ß= 81.0 (1), y= 96.4 (1), Z= 2, space group Pi; RF= 0.041) and contains discrete moieties of the molecular formula; the moiety as a whole has the shape of a twisted U. 2 (Ethylenethiourea)-3 (I2) is triclinic (a= 9.362 (6) A, b= 9.176 (6) A, c= 7.434 (5) A, a= 116.9 (1), ß= 72.5 (1), y= 114.7 (1), Z= 1, space group P\; RF= 0.063) and has a centrosymmetric twisted-chain structure with three iodine molecules held between the two donor molecules; this structure is similar to that of bis (((triphenylphosphine sulfide-5) iodine)-/) iodine (Bransford; Meyers Cryst. Struct. Commun. 1978, 7, 697-702). 2 (Dithizone)-7 (I2) is triclinic (a= 13.312 (8) A, b= 20.637 (7) A, c= 9.746 (6) A, a= 101.8 (1), ß= 87.1 (1), y= 109.4 (1), Z= 1, space group Pi; RF= 0.086) and has a centrosymmetric, branched twisted chain of iodine molecules held at its ends by strong sulfur-iodine interactions. Intermediate between these neutral structures and the polyiodide salts is the salt-molecule complex 1-(1-imidazolin-2-yl)-2-thioxoimidazolidinium tri-