138667-99-9Relevant academic research and scientific papers
Organogallium compounds containing the neophyl substituent. Crystal and molecular structure of trans-[(PhMe2CCH2)2GaN(H)(Pr)]2
Beachley Jr.,Noble,Churchill, Melvyn Rowen,Lake, Charles H.
, p. 1051 - 1055 (2008/10/08)
A series of organogallium compounds which contain the neophyl substituent including Ga(CH2CMe2Ph)3, Ga(CH2CMe2Ph)2Cl, Ga(CH2CMe2Ph)Cl2, and (PhMe2CCH2)2GaN(H)(Pr) have been prepared in high yield by reactions typical of organogallium chemistry. The characterization data include elemental analyses, melting points, NMR and IR spectroscopic studies, and cryoscopic molecular weight studies. All data are consistent with the conclusions that Ga(CH2CMe2Ph)3 is monomeric in benzene solution whereas Ga(CH2CMe2Ph)2Cl, Ga(CH2CMe2Ph)Cl2, and (PhMe2CCH2)2GaN(H)(Pr) are dimeric. The gallium amide [(PhMe2CCH2)2GaN(H)(Pr)]2 crystallizes in the centrosymmetric triclinic space group P1 (No. 2) with a = 10.739 (2) A?, b = 10.844 (2) A?, c = 11.125 (2) A?, α = 69.14 (1)°, β = 62.96 (1)°, γ = 76.74 (1)°, V = 1074.7 (3) A?3, and Z = 1. Diffraction data (Mo Κα, 2θ = 5-50°) were collected on a Siemens R3m/V automated four-circle diffractometer, and the structure was refined to R = 3.57percent and wR = 3.46percent for all 3803 unique reflections (R = 2.52percent, wR = 2.62percent for those 3111 data with \Fo\ >; 6σ(|Fo|)). The molecule lies on a crystallographic inversion center and thus has a strictly planar Ga2N2 core. Distances of interest include Ga-CH2CMe2Ph = 1.992 (2) and 1.994 (3) A? and Ga-N(bridging) = 2.013 (2) and 2.029 (2) A?.
