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Di-?-carbonyl-bis-[bis-(triphenyl-phos-phane)rhodium(0)](Rh-Rh) acetone disolvate.

ABSTRACT: The dirhodium complex, [Rh(2)(C(18)H(15)P)(4)(CO)(2)]·2(CH(3))(2)CO, has crystallographic twofold symmetry and the Rh-Rh distance is 2.6266?(8)?Å. The four atoms proximate to each Rh atom [Rh-P = 2.3222?(7) and 2.3283?(8)?Å, and Rh-C = 1.961?(3) and 2.045?(3)?Å] form a distorted tetra-hedron with large deviations from the putative tetra-hedral angles [r.m.s. deviation = 23?(1)°]. The six angles more closely approximate those of a trigonal bipyramid [r.m.s. deviation = 14?(1)°] with one missing equatorial ligand. The two bridging carbonyl ligands are much more linearly coordinated to one Rh [Rh-C O = 151.0?(2)°] than to the other [127.0?(2)°], and the two Rh(2)CO planes form a dihedral angle of 45.43?(5)°. The two acetone solvent mol-ecules are disordered, and their estimated scattering contribution was subtracted from the observed diffraction data using the SQUEEZE routine in PLATON [Spek (2009 ?). Acta Cryst.D65, 148-155].

SUBMITTER: Gueorguieva PG 

PROVIDER: S-EPMC3515148 | biostudies-literature | 2012 Nov

REPOSITORIES: biostudies-literature

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Di-μ-carbonyl-bis-[bis-(triphenyl-phos-phane)rhodium(0)](Rh-Rh) acetone disolvate.

Gueorguieva Petia G PG   Laneman Scott A SA   Stanley George G GG   Fronczek Frank R FR   Watkins Steven F SF  

Acta crystallographica. Section E, Structure reports online 20121027 Pt 11

The dirhodium complex, [Rh(2)(C(18)H(15)P)(4)(CO)(2)]·2(CH(3))(2)CO, has crystallographic twofold symmetry and the Rh-Rh distance is 2.6266 (8) Å. The four atoms proximate to each Rh atom [Rh-P = 2.3222 (7) and 2.3283 (8) Å, and Rh-C = 1.961 (3) and 2.045 (3) Å] form a distorted tetra-hedron with large deviations from the putative tetra-hedral angles [r.m.s. deviation = 23 (1)°]. The six angles more closely approximate those of a trigonal bipyramid [r.m.s. deviation = 14 (1)°] with one missing e  ...[more]

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