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Updated: May 27, 2026

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
Published on: March 20, 2017
cis-[1,2-Bis(diphenyl-arsan-yl)ethane-κAs,As']tetra-carbonyl-chromium(0)
Abstract:
In the title compound, [Cr(C(26)H(24)As(2))(CO)(4)], the Cr atom is octa-hedrally coordinated by four carbonyl ligands and one bidentate 1,2-bis-(diphenyl-arsan-yl)ethane ligand, which chelates in a cis manner with an As-Cr-As bite angle of 82.513 (9)°. The dihedral angles between the pairs of benzene rings attached to each As atom are 84.63 (9) and 77.15 (8)°. In the crystal, mol-ecules are linked by C-H⋯O inter-actions, forming infinite chains along the a axis. The crystal structure is further stabilized by C-H⋯π inter-actions.
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