The structure of [Co(NO2)(NH3)(5)]Cl-2 has been refined anisotropicall
y from data collected at 0.24, 0.52, 1.25, 1.91 and 3.38 GPa in a diam
ond anvil cell (DAC). For comparison, the structure of the same crysta
l in the same DAC was also refined at ambient pressure. The structures
at high pressures are anisotropically distorted compared with that at
ambient pressure determined in this work and by Bortin [Acta Chem. Sc
and. (1968), 22, 2890-2898],Kubota & Ohba [Acta Cryst. (1992), B48, 62
7-632] and Boldyreva et al. [Acta Cryst. (1997c), C53, 523-526], but t
he space group and the general structural pattern remain the same.