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cif-access (metal-organic compounds)
Pentacarbonyl(tetracyclohexylcyclotetraphosphane)chromium(0) crystallizes in the triclinic space group P, Z = 2. The Cr octahedron is slightly distorted. The distance Cr-C trans to the P atom is shortened to 1.845 (2) Å compared to the average of 1.899 Å for the remaining four. The P4 ring is bent, the P atoms lie 0.33 Å alternating out of their least squares plane. The cyclohexyl residues reveal a chair conformation and an all-trans configuration with respect to the P4 ring. They are connected equatorially to the P atoms.