Shawkataly Omar Bin, Khan Imthyaz Ahmed, Yeap Chin Sing, Fun Hoong-Kun
Acta Crystallogr Sect E Struct Rep Online. 2009 Dec 16;66(Pt 1):m73-4. doi: 10.1107/S1600536809053045.
The asymmetric unit of the title triangulo-triruthenium compound, [Ru(3)(C(25)H(22)As(2))(C(19)H(17)P)(CO)(9)], consists of two crystallographically independent mol-ecules of the triangulo-triruthenium complex, A and B. The bis-(diphenyl-arsino)methane ligand bridges an Ru-Ru bond and the monodentate phosphine ligand bonds to the third Ru atom. Both the phosphine and arsine ligands are equatorial with respect to the Ru(3) triangle. In addition, each Ru atom carries one equatorial and two axial terminal carbonyl ligands. With regard to the three phosphine-substituted rings, the benzyl ring makes dihedral angles of 41.0 (3) and 43.9 (3)° with the other two benzene rings in mol-ecule A; these angles are 49.8 (3) and 56.8 (3)° in mol-ecule B. The dihedral angles between the two benzene rings are 76.1 (3) and 88.2 (3)° for the two diphenyl-arsino groups in mol-ecule A and 71.3 (3) and 78.1 (3)° in mol-ecule B. In the crystal packing, mol-ecules are linked into chains via inter-molecular C-H⋯O hydrogen bonds. Weak inter-molecular C-H⋯π inter-actions further stabilize the crystal structure.
标题三角三钌化合物[Ru(3)(C(25)H(22)As(2))(C(19)H(17)P)(CO)(9)]的不对称单元由三角三钌配合物的两个晶体学独立分子A和B组成。双（二苯基砷基）甲烷配体桥连一个Ru-Ru键，单齿膦配体与第三个Ru原子键合。膦配体和砷配体相对于Ru(3)三角形均处于赤道位置。此外，每个Ru原子带有一个赤道面和两个轴向末端羰基配体。关于三个膦取代环，在分子A中，苄基环与另外两个苯环的二面角分别为41.0（3）°和43.9（3）°；在分子B中，这些角度分别为49.8（3）°和56.8（3）°。分子A中两个二苯基砷基的两个苯环之间的二面角为76.1（3）°和88.2（3）°，分子B中为71.3（3）°和78.1（3）°。在晶体堆积中，分子通过分子间C-H⋯O氢键连接成链。弱分子间C-H⋯π相互作用进一步稳定了晶体结构。
