Crystal structure of AI(tBu)3(NH2CH2CH2Ph): A molecular "slinky"

Abstract

The molecular structure of AI(tBu)3(NH2CH2CHzPh) is determined by the crystal packing of the phenyl rings and the pseudo spherical Al(tBu)3 units, and may be viewed as a layered structure consisting of double sheets of the phenyl rings and the Al(tBu)3 units. The A1-N-C-C linkage shows severe disorder as a result of its flexibility. The structure of Al(tBu)3 (NH2CH2CH2Ph) can be likened to a molecular "slinky," in which the rigid ends are fixed in space by molecular packing forces, leaving the interior link to adopt multiple orientations. Crystal data: orthorhombic, Cmca, a = 13.282(9), b = 25.01(1), c = 13.210(9) ,~,, V = 438800) ,~3, Z = 4, R = 0.0957, R, = 0.0957