Abstract
The title compound has been prepared by the reaction of FeCl3 with N, N, N′-tris(trimethylsilyl) benzamidine in CH2Cl2 solution as dark red, moisture-sensitive crystals. The complex was characterized by its IR spectrum as well as by an X-ray structure determination. Crystal data: space group P21/n, Z = 2 (1178 observed independent reflexions, R = 0.089). Lattice dimensions (20 °C): a = 1240.2(2), b = 645.7(3), c = 1779.7(3) pm, β = 91.31(2)°. The compound forms centrosymmetric molecules, in which the iron atoms are members of two fused planar heterocycles with the NN group as the com m on edge. The NN bond length (142.5(9) pm) is very close to the NN bond length of hydrazine.
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