New stable monomeric germanium(II) and tin(II) compounds M(OCH 2 CH 2 NMe 2 ) 2 (M ) Ge (1); M ) Sn (2)), stabilized by two intramolecular coordination MrN bonds and containing no bulky groups on the metal atoms, were synthesized. The molecular and crystal structures of these compounds, and that of the previously synthesized compound (ArO) 2 Sn (3; Ar ) 2,4,6-(Me 2 NCH 2 ) 3 C 6 H 2 ), were determined by X-ray diffraction analysis. The electronic structures of 1 and 2 were studied by the DFT method.
New stable monomeric germanium(II) derivatives XGeOCH 2 CH 2 NMe 2 (1, X ) Cl; 2, X ) OCOMe) with ligands that are not sterically bulky at the Ge atom and only one intramolecular coordination GerN sp 3 bond have been synthesized. The molecular and crystal structures of these compounds were studied by X-ray diffraction analysis. The electronic structures of 1 and 2 were studied by DFT. Compound 2 is the first structurally characterized acyloxy derivative of germanium(II).
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