| Abstract: | Coordination Chemistry of P‐rich Phosphanes and Silylphosphanes. XXVI. Formation and Structure of { cyclo ‐P4(PtBu2)4}{Ni(CO)2}2] {cyclo‐P4(PtBu2)4}{Ni(CO)2}2] is formed by reaction of the cyclotetraphosphane P4(PtBu2)4 with Ni(CO)4]. Each Ni(CO)2 unit is coordinated by two adjacent tBu2P groups forming two five‐membered P4Ni rings above and below the planar cyclotetraphosphane ring, respectively. The compound crystallizes in the triclinic space group P 1 (No. 2) with a = 893.29(5), b = 1140.75(7), c = 1235.52(8) pm, α = 109.179(7), β = 100.066(7), γ = 97.595(7)° and Z = 1. |
