Alkali Metal Tetraselenohypodiphosphonates: Synthesis, NMR Spectroscopy and Crystal Structures
作者:Karin Lux、Klaus Eckstein、Oliver Schön、Konstantin Karaghiosoff
DOI:10.1002/ejic.200800802
日期:2009.3
with alkali metal selenides M2Se and M2Se2 in a 2:2:1 molar ratio provides a simple and general route to alkali metal tetraselenohypodiphosphonates (RP)2Se4M2 (M = Li, Na; R = alkyl, aryl). The new compounds were characterized by multinuclear (31P, 77Se, 1H, 13C) NMR spectroscopy and in two cases by single-crystal X-ray diffraction. The crystal structure of the first solvent-free alkali metal tetr
烷基或芳基二氯膦 RPCl2 与碱金属硒化物 M2Se 和 M2Se2 以 2:2:1 的摩尔比进行的一锅反应为碱金属四硒代二膦酸盐 (RP)2Se4M2 (M = Li, Na; R =烷基、芳基)。新化合物通过多核 (31P、77Se、1H、13C) NMR 光谱和在两种情况下通过单晶 X 射线衍射进行表征。介绍了第一种无溶剂碱金属四硒代二膦酸盐的晶体结构。该结构揭示了 (RP)2Se42- 阴离子的巨大配位灵活性。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)