120140-62-7Relevant articles and documents
Amidinato Complexes of Boron, Aluminium, Gallium, Indium, and Tin. The Crystal Structures of Ph-C(NSiMe3)2AlCl2 and Ph-C(NSiMe3)2SnCl3
Ergezinger, Christina,Weller, Frank,Dehnicke, Kurt
, p. 1621 - 1627 (2007/10/02)
The trichlorides of aluminium, gallium, and indium, as well as boron tribromide and tin tetrachloride react with N,N,N'-tris(trimethylsilyl)benzamidine to form the monomeric N,N'-bis(trimethylsilyl)benzamidinato complexes Ph-C(NSiMe3)2MX2 (M = B, Al, Ga, In; X = Cl, Br) and Ph-C(NSiMe3)2SnCl3, respectively.All compounds have been characterized by their IR spectra, two of them by X-ray diffraction studies.Ph-C(NSiMe3)2AlCl2: Space group C2/c, Z = 4, 1152 independent observed reflexions, R = 0.052.Lattice dimensions (19 deg C): a = 1558.6(1), b = 1116.6(1), c = 1307.0(1) pm, β = 115.17(1) deg.The compound forms monomeric molecules, in which the aluminium atom is tetrahedrally coordinated by two chlorine atoms and by the two nitrogen atoms of the benzamidinato chelate.Bond length AlN = 188.2 pm.Ph-C(NSiMe3)2SnCl3: Space group P, Z = 2, 3293 independent observed reflexions, R = 0.034.Lattice dimensions (19 deg C): a = 980.1(1), b = 1025.9(1), c = 1230.5(2) pm, α = 68.40(1) deg, β = 87.71(1) deg, γ = 68.92(1) deg.The compound forms monomeric molecules, in which the tin atom is five-coordinated by three chlorine atoms and by the two nitrogen atoms of the benzamidinato chelate.Bond lengths SnN = 213.5 and 215.2 pm. - Keywords: N,N'Bis-(trimethylsilyl)amidinato Complexes, Synthesis, IR Spectra, Crystal Structure