Crystal and molecular structure of η-cyclopentadienyl(diphenylamido)iodonitrosylchromium

Abstract

Crystals of the title complex contain monomeric molecules [Cr(η-C₅H₅)(NO)(NPh₂)I]. Crystals are monoclinic, space group P2₁, with a= 10.247(2), b= 8.888(2), c= 9.236(2)Å, β= 91° 30(1)′, and Z= 2. Intensities have been measured by diffractometry and least-squares refinement has terminated at R 0.021 over 2 398 independent reflections. The chromium–nitrogen bond lengths are Cr–NO 1.676(3) and Cr–NPh₂ 1.894(3)Å. The Cr–I distance is 2.669(1)Å and the Cr–C(cyclopentadienyl) separations are 2.210–2.292(6)(mean 2.250 Å). The angle Cr–N–O is 172.7(3)°. Valency angles of the chromium atom are I–Cr–NO 90.3(1), I–Cr–NPh₂ 100.9(1), and ON–Cr–NPh₂ 97.2(1)°.