Ganguly Rakesh, Jevtovic Violeta
Division of Chemistry & Biological Chemistry, SPMS-CBC-01-18D, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore.
Department of Biological Sciences and Chemistry, College of Arts and Sciences, University of Nizwa, Sultanate of Oman.
Acta Crystallogr E Crystallogr Commun. 2017 Jul 28;73(Pt 8):1259-1263. doi: 10.1107/S2056989017010295. eCollection 2017 Jul 1.
Reaction of BI with carbodi-phospho-rane, C(PPh), gives a mixture of the dicationic compounds, methyl-enebis(tri-phenyl-phospho-nium) diiodide di-chloro-methane disolvate, CHP·2I·2CHCl or [PhPCHPPh]I·2CHCl (), methyl-enebis(tri-phenyl-phospho-nium) bis-(tetra-iodo-borate), CHP·2BI or PhPCHPPh (). Solvents are the source of the protons at the ylidic C atom. The P-C-P angle is 124.1 (2)° for () and 121.7 (3)° for (), while the two P-C bond lengths are 1.804 (4) and 1.807 (5) Å in (), and 1.817 (5) and 1.829 (5) Å in (). In the crystal of (), the protons of the central P-CH-P C atom exhibit weak C-H⋯I hydrogen bonds with the respective anions. The anions in turn are linked to the di-chloro-methane solvent mol-ecules by C-H⋯I hydrogen bonds. In the crystal of (), one of the BI anions is linked to a phenyl H atom a weak C-H⋯I hydrogen bond.
BI 与碳二磷杂环戊烷 C(PPh) 反应，生成双阳离子化合物的混合物，即亚甲基双（三苯基鏻）二碘化二氯甲烷溶剂化物 CHP·2I·2CHCl 或 [PhPCHPPh]I·2CHCl（）、亚甲基双（三苯基鏻）双（四碘硼酸根）CHP·2BI 或 PhPCHPPh（）。溶剂是叶立德碳原子上质子的来源。对于（），P-C-P 角为 124.1 (2)°，对于（）为 121.7 (3)°，而在（）中两个 P-C 键长分别为 1.804 (4) 和 1.807 (5) Å，在（）中为 1.817 (5) 和 1.829 (5) Å。在（）的晶体中，中心 P-CH-P C 原子的质子与相应阴离子形成弱的 C-H⋯I 氢键。反过来，阴离子通过 C-H⋯I 氢键与二氯甲烷溶剂分子相连。在（）的晶体中，一个 BI 阴离子通过弱的 C-H⋯I 氢键与一个苯基 H 原子相连。
