Metal–carbonyl and metal–nitrosyl complexes. Part IV. The crystal and molecular structure of tricarbonylchromium-o-toluidine

Abstract

Tricarbonylchromium-o-toluidine crystallises in the monoclinic system, space group C2/c, with eight molecules of C₁₀H₉CrNO₃ in a cell of dimensions a= 19·25, b= 8·32, c= 13·80 Å, β= 170° 0′. After Fourier and least-squares refinement of the atomic parameters, the final discrepancy factor is 14·4% over 1448 independent reflexions. The tricarbonylchromium-o-toluidine molecule adopts the eclipsed configuration in which the carbonyl–chromium vectors point closely towards the benzene carbon atoms which are ortho and para to the amino substituent. The amino group participates in NH⋯O hydrogen bonds of 3·17 and 3·21 Å with oxygen atoms of neighbouring molecules.