101033-34-5Relevant academic research and scientific papers
Substitution and fragmentation reactions of Br2Os3(CO)12 with phosphines. Structure of Br2Os3(CO)10[P(OMe)3]2
Chen, Yu-Sen,Wang, Sue-Lein,Jacobson, Robert A.,Angelici, Robert J.
, p. 1118 - 1122 (2008/10/08)
At room temperature the linear complex Br2Os3(CO)12 reacts with PPh3 and PPh2Me to give the substituted product Br2Os3(CO)10(PR3)2 (?15%), as well as the mononuclear products Os(CO)4PR3 (?60%) and Br2Os(CO)2(PR3)2 (?15%). The mononudear products are not formed from Br2Os3(CO)10(PR3)2 under the conditions of the reaction. The reaction is completely stopped by added CCl4 or galvinoxyl, suggesting that the formations of both the trinuclear and mononuclear products are radical processes. From the reaction of Br2Os3(CO)12 with P(OMe)3, the trinuclear complex Br2Os3(CO)10[P(OMe)3]2 is isolated in 53% yield. This complex crystallizes in the centrosymmetric triclinic space group P1 with a = 8.923 (3) ?, b = 11.657 (3) ?, c = 8.185 (3) ?, α = 98.48 (3)°, β = 111.91 (3)°, γ = 96.28 (3)°, and Z = 1; it has the structure.
