Add time:07/24/2019         Source:sciencedirect.com

Organogermanium derivatives of dithiophosphoric acid of general formula R4−nGe[SP(S)(OR′)2]n, where n = 1–3, R, = Me, Ph and R′ = Me, Et, have been prepared and characterized by means of 1H, 13C NMR and vibrational spectroscopy and mass spectrometry. The spectroscopic results indicate that the dithiophosphate groups are monodenate and that an approximate tetrahedral geometry about the germanium atom is maintained. This is in part confirmed by a preliminary X-ray crystallographic determination of PhGe[SP(S)(OMe)2]3, whose crystals are orthorhombic, space group Pn221a, a 13.674(4), b 14.566(3), c 13.154(3) Å, V 26201(1) Å3 and Z = 4 from 1225 observed reflections [1 > 2σI].

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