
TY  - JOUR
A1  - Commons, CJ 
A1  - Hoskins, BF 
T1  - The crystal and molecular stucture of &#956;-Bis(diphenylarsino)methanehexacarbonyldi-&#956;-chloro-dirhenium(I)-n-hexane (4/1)
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1975
VL  - 28
IS  - 6
SP  - 1201
EP  - 1209
KW  - 
UR  - https://doi.org/10.1071/CH9751201 
N2  - The crystal and molecular structure of the n-hexane solvate of &#956;- bis(diphenylarsino)methane-hexacarbonyldi-&#956;-chloro-dirhenium(I), Re2(CO)6(Ph2AsCH2AsPh2)Cl2, has been determined by three-dimensional X-ray diffraction methods. The complex crystallizes in the space group P&#299; with a 15.763(1), b 19.077(1), c 12.233(1) &#506; and &#945; 88.745(10), &#946; 110.506(5), &#947; 92.900(6)°. The structure was solved by conventional Patterson and Fourier methods and refined by a block-diagonal least- squares method to R and Rw of 0.045 and 0.054, respectively, for 7061 independent statistically significant reflections collected by counter methods. The crystal consists of discrete molecules of the complex and n-hexane held together by van der Waals forces. There are two molecules of the dirhenium complex in the crystallographic asymmetric unit with the n-hexane molecule situated about a site of symmetry &#299;. The binuclear rhenium complex contains bridging halogen atoms and a bridging diarsine ligand. Three carbonyl ligands are also bonded to each rhenium atom, giving the metal atoms approximately octahedral environments. The average Re-As, Re-Cl, and Re-C bond lengths are 2.58, 2.52, and 1.89 &#506; respectively. 
ER  -

