97390-98-2Relevant academic research and scientific papers
Preparation, spectroscopic characterization, and crystal structures of triphenyl(O,O′-dimethyl dithiophosphato)germanium and diphenylbis(O,O′-dimethyl dithiophosphato)germanium
Chadha, Raj K.,Drake, John E.,Sarkar, Anil B.
, p. 3156 - 3161 (2008/10/08)
(C6H5)3GeS2P(OCH 3)2 (A) and (C6H5)2Ge[S2P(OCH3) 2]2 (B) are prepared from the corresponding phenylchlorogermanes and NH4S2P(OCH3)2. These compounds were characterized by elemental analysis, IR and 1H, 13C, and 31P NMR spectroscopy, and mass spectrometry. The crystal structure reveals monodentate coordination of the O,O′-dimethyl dithiophosphate groups and distorted-tetrahedral geometry around the germanium atom. Crystals of A (mp 96°C) are triclinic, space group P1, with Z = 2, fw = 460.6, a = 10.311 (4) A?, b = 11.282 (5) A?, c = 11.517 (4) A?, α = 101.47 (3)°, β = 113.58 (3)°, γ = 110.31 (3)° and V = 1057.5 (8) A?3. For 2738 reflections measured at 21°C with I > 3σ(I) (Mo Kα radiation) and 235 parameters, R = 0.0325 and RwF = 0.0353. Crystals of B (mp 92°C) are also triclinic, P1, with Z = 2, fw = 540.6, a = 9.813 (9) A?, b = 10.345 (7) A?, c = 11.837 (7) A?, α = 89.04 (5)°, β = 85.28 (6)°, γ = 82.29 (6)°, and V = 1186.7 (16) A?3. For 2675 reflections with 1 > 3σ(I) and 244 parameters, R = 0.0581 and RwF = 0.0628.
