X-ray crystal structure of solvent-free hydridotris(triphenylphosphine) rhodium, HRh(PPh/sub 3/)/sub 3/

Journal Article · Wed Jan 01 04:00:00 EST 1986 · J. Coord. Chem.; (United States)

DOI:https://doi.org/10.1080/00958978608073911· OSTI ID:5533084

Hanusa, T P; Evans, W J

Hydridotris(triphenylphosphine)rhodium HRh(PPh/sub 3/)/sub 3/, I, crystallizes out of a toluene/hexane mixture free from solvent in the space group P2/sub 1//a with a = 23.289(8), b = 19.985(6), c = 9.810(2)A, ..beta.. = 97.83(2)/sup 0/, V = 4523(2)A//sup 3/ and D/sub calcd/ = 1.308 g cm/sup -3/ for Z = 4. Molecules of I exhibit a distorted square planar geometry in which the angle subtended by the phosphines adjacent to the hydride ligand is 147.28(4)/sup 0/. A difference Fourier map based on low-angle diffraction data provided evidence for the hydride ligand with a Rh-H distance of 1.63A. In contrast to the known structure of HRh(PPh/sub 3/)/sub 3/ x HN(CH/sub 3/)/sub 2/ x THF, II, which contains solvent of crystallization, and has no ortho hydrogen rhodium separations less than 3.01 A, a phenyl ring in I has rotated so as to place a hydrogen within 2.87A of the rhodium center. 23 references, 1 figure, 3 tables.

• Research Organization: Univ. of California, Irwin
• OSTI ID: 5533084
• Journal Information: J. Coord. Chem.; (United States), Journal Name: J. Coord. Chem.; (United States) Vol. 14:3; ISSN JCCMB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
COHERENT SCATTERING
COMPLEXES
CRYSTAL STRUCTURE
DATA
DIFFRACTION
EXPERIMENTAL DATA
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
NUMERICAL DATA
PHOSPHINES
PHOSPHORUS COMPOUNDS
REFRACTORY METAL COMPOUNDS
RHODIUM COMPOUNDS
RHODIUM HYDRIDES
SCATTERING
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION