888939-69-3Relevant articles and documents
Stable monomeric germanium(II) and tin(II) compounds with terminal hydrides
Pineda, Leslie W.,Jancik, Vojtech,Starke, Kerstin,Oswald, Rainer B.,Roesky, Herbert W.
, p. 2602 - 2605 (2006)
Going solo: The use of AlH3·NMe3 as a hydrogen-transfer agent with β-diketiminatogermanium(II) and β-diketiminatotin(II) halides gives the divalent hydrides [{HC(CMeNAr) 2}GeH] and [{HC(CMeNAr)2}SnH] (Ar = 2,6-iPr 2C6H3). In the solid state, the compounds exhibit monomeric and dimeric arrangements, respectively, with weak intermolecular Sn-H...Sn contacts for the Sn analogue (see picture). (Chemical Equation Presented)
Synthesis and structures of monomeric divalent germanium and tin compounds containing a bulky diketiminato ligand
Ding, Yuqiang,Roesky, Herbert W.,Noltemeyer, Mathias,Schmidt, Hans-Georg,Power, Philip P.
, p. 1190 - 1194 (2008/10/08)
Reaction of the β-diketiminato lithium salt Li(OEt2)[HC(CMeNAr)2] (Ar = 2,6-i-Pr2C6H3) with GeCl2·(dioxane) and SnCl2 in diethyl ether provided the monomeric complexes [HC-(CMeNAr)2]MCl (M = Ge (2), Sn (3), respectively) with a three-coordinated metal center. The reductive dehalogenation reactions of 3 with C8K and LiAlH4 afforded [HC(CMeNAr)2]2Sn (7) and [HC(CMeNAr)2]AlH2, respectively. The metathesis reactions of 3 with t-BuLi, AgSO3-CF3, and NaN3 resulted in the formation of [HC(CMeNAr)2]Sn(t-Bu) (4), [HC(CMeNAr)2]-Sn(OSO2CF3) (5), and [HC(CMeNAr)2]SnN3 (6), respectively. Compounds 2, 3, 5, and 7 were characterized by single-crystal X-ray structural analysis. The structures indicate that the β-diketiminato backbone is essentially planar and the metal centers reside in distorted-tetrahedral environments with one vertex occupied by a lone pair of electrons. The bond angles at the metal center are in the range 85.2(8)-106.8(2)°, and the most acute angle is associated with the bite of the chelating ligand.
