What question did this study set out to answer?

The central aim is to investigate the crystal structure and steric implications of the osmium complex.

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January 18, 2026Open Access

Crystal Structure and Quantitative Steric Analysis of cis,cis,trans-Dibromidodicarbonyl-bis(tribenzylphosphine)osmium(II)

Key Points

The central aim is to investigate the crystal structure and steric implications of the osmium complex.
Synthesis of the complex OsBr2(CO)2(PBz3)2.
X-ray crystallography to determine the crystal structure and space group.
Analysis of steric effects using buried volume and cone angle measurements.
The complex crystallizes in a monoclinic space group with specific dimensions.
The presence of the bulky PBz3 ligand results in a significant steric effect, indicated by a buried volume of 24.0%.
The ligand imposes a cone angle of 213.51° on the osmium center.

Abstract

Abstract The synthesised complex OsBr 2 (CO) 2 (PBz 3 ) 2 , crystallises in the monoclinic, space group C2/c (no. 15), a = 23.3375(14) Å, b = 18.3044(10) Å, c = 9.4310(6) Å, α = γ = 90°, β = 98.962(2)°, V = 3979.5(4) Å 3 , Z = 4. The bulky PBz 3 ligand imposes a significant steric effect on the metal centre, as reflected by a buried volume of 24.0% in the title compound, with a cone angle of 213.51˚. Graphical Abstract

Crystal Structure and Quantitative Steric Analysis of cis,cis,trans-Dibromidodicarbonyl-bis(tribenzylphosphine)osmium(II)

Key Points

Abstract

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