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Title: X-ray and neutron diffraction study of the new cationic bis(hydrido)-bridged platinum-iridium complex ((PEt/sub 3/)/sub 2/Pt(. mu. -H)/sub 2/IrH/sub 2/(PEt/sub 3/)/sub 2/)/sup +/(BPh/sub 4/)/sup -/

Journal Article · · Inorg. Chem.; (United States)
DOI:https://doi.org/10.1021/ic00247a009· OSTI ID:6950396
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The structure of ((PEt/sub 3/)/sub 2/Pt(..mu..-H)/sub 2/IrH/sub 2/(PEt/sub 3/)/sub 2/)/sup +/(BPh/sub 4/)/sup -/ has been studied by X-ray and neutron diffraction techniques, at room temperature and 22 (1) K, respectively. At both temperatures, crystals of the title compound are monoclinic, with space group P2/sub 1//c and Z = 4. Unit cell parameters at 22 K are as follows: a = 18.989 (10) A, b = 15.314 (3) A, c = 19.792 (6) A, ..beta.. = 118.73 (3)/sup 0/, and V = 5047 (4) A/sup 3/. The coordination around the Ir atom is distorted octahedral, while that around Pt is distorted square planar. The neutron analysis shows that the Pt-Ir distance is 2.677 (1) A and that the distances between the metals and bridging hydrido ligands differ by 0.15 A (Ir-H = 1.879 (3) and 1.882 (3) A; Pt-H = 1.726 (3) and 1.736 (3) A). The two terminal Ir-H bonds are equivalent (1.586 (3) and 1.591 (3) A) and comparable in length to those found in other neutron diffraction studies. 47 references, 1 figure, 4 tables.

Research Organization:
Brookhaven National Lab., Upton, NY
OSTI ID:
6950396
Journal Information:
Inorg. Chem.; (United States), Vol. 25:27, Issue 27
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALKANES
CRYSTAL STRUCTURE
MOLECULAR STRUCTURE
AROMATICS
BORON COMPOUNDS
IRIDIUM COMPLEXES
ORGANIC PHOSPHORUS COMPOUNDS
PLATINUM COMPLEXES
EXPERIMENTAL DATA
NEUTRON DIFFRACTION
X-RAY DIFFRACTION
COHERENT SCATTERING
COMPLEXES
DATA
DIFFRACTION
HYDROCARBONS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
SCATTERING
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties