Structural studies in the iron(III)/chloride/α,α'-diimine system. I. The six-coordinate mononuclear fac-[FeCl₃(phen)X] system, X = MeOH, H₂O, Cl^-

Abstract

The crystal structures of three iron complexes [FeCI₃(phen)(MeOH)].MeOH (I), [FeCl₃(phen)(H₂O)] (2) and [phenH]⁺ [FeCl₄(phen)]^- (3) have been determined by single-crystal X-ray diffraction methods at 295(1) K, and refined by least squares to residuals of 0.044 (1600 'observed' reflections), 0.040 (806) and 0.050 (2496), respectively. Crystals of (1) are monoclinic, P2₁/c, a 8.005(9), b 14.805(11), c 14.830(12) A, P 101.03(7)°, Z 4; for (2), triclinic, space group P1 , a 10.591(8), b 10.227(7), c 6.613(3) Ǻ, α 108.21(5), β 100.69(5), γ 91.98(6)°2, 2 ; for (3), triclinic, P1, a 18.560(8), b 10.302(5), c 6.981(3) Ǻ, α 106.79(4), β 94.50(4), γ 103.15(4)°, Z 2. In all structures, the iron atoms are six-coordinate, with the disposition of the three chlorine atoms being fac in (1) and (2).