Reactions of Na[Mo(CO)3(η5-C5H5)] towards CoCl(PPh3)3 and CoCl(P(OMe)3)5: X-ray crystal structures of [MoCo(CO)6(PPh3)(η5-C5H5)] and [Mo(CO)3(P(OMe)3)(η5-C5H5)]2

Hong, Fung-E., Lue, I-Ren, Lo, Shih-Chun, Yang, Yaw-Cherng and Lin, Chu-chieh (1996) Reactions of Na[Mo(CO)3(η5-C5H5)] towards CoCl(PPh3)3 and CoCl(P(OMe)3)5: X-ray crystal structures of [MoCo(CO)6(PPh3)(η5-C5H5)] and [Mo(CO)3(P(OMe)3)(η5-C5H5)]2. Polyhedron, 15 16: 2793-2800. doi:10.1016/0277-5387(95)00546-3


Author Hong, Fung-E.
Lue, I-Ren
Lo, Shih-Chun
Yang, Yaw-Cherng
Lin, Chu-chieh
Title Reactions of Na[Mo(CO)3(η5-C5H5)] towards CoCl(PPh3)3 and CoCl(P(OMe)3)5: X-ray crystal structures of [MoCo(CO)6(PPh3)(η5-C5H5)] and [Mo(CO)3(P(OMe)3)(η5-C5H5)]2
Formatted title
Reactions of Na[Mo(CO)3(η5-C5H5)] towards CoCl(PPh3)3 and CoCl(P(OMe)3)5: X-ray crystal structures of [MoCo(CO)6(PPh3)(η5-C5H5)] and [Mo(CO)3(P(OMe)3)(η5-C5H5)]2
Journal name Polyhedron   Check publisher's open access policy
ISSN 0277-5387
Publication date 1996-08-01
Year available 1996
Sub-type Article (original research)
DOI 10.1016/0277-5387(95)00546-3
Open Access Status
Volume 15
Issue 16
Start page 2793
End page 2800
Total pages 8
Place of publication Oxford, U. K.
Publisher Pergamon Elsevier
Language eng
Subject 0303 Macromolecular and Materials Chemistry
030302 Nanochemistry and Supramolecular Chemistry
030303 Optical Properties of Materials
030306 Synthesis of Materials
020504 Photonics, Optoelectronics and Optical Communications
Abstract Reaction of Na[Mo(CO)(3)(eta(5)-C5H5)] with CoCl(PPh(3))(3) in tetrahydrofuran under 1 atm of CO yielded two heterobimetallic compounds : [MoCo(CO)(5)(PPh(3))(2)(eta(5)-C5H5)] (1a) and [MoCo(CO)(6)(PPh(3))(eta(5)-C5H5)] (1b). Both compounds were characterized by mass, IR, H-1, C-13 and P-31 NMR spectra. The X-ray crystal structure of 1b was determined. The cobalt centre of Ib has acquired three carbonyl groups and released two triphenylphosphine ligands during the reaction. The only PPh, which remained on the cobalt centre was in the axial position of the trigonal bipyramidal structure, thus avoiding steric interaction with ligands from the molybdenum fragment. The molybdenum centre is in a 'four-legged piano stool' configuration. From the reaction of Na[Mo (CO)(3)(eta(5)-C5H5)] and CoCl(P(OMe)(3))(5) in tetrahydrofuran, an unexpected bimetallic compound [Mo(CO)(2)(P(OMe)(3))(eta(5)-C5H5)](2) (6) was obtained which was characterized by mass, IR, H-1, C-13 and P-31 NMR spectra. The molecular structure of 6 was also determined by X-ray diffraction. The centrosymmetric complex is a typical four-legged piano-stool dimer. The M-M bond length (3.239 Angstrom) is longer than the sum of the metal radii. Copyright (C) 1996 Elsevier Science Ltd
Formatted abstract
Reaction of Na[Mo(CO)3(η5-C5H5)] with CoCl(PPh3)3 in tetrahydrofuran under 1 atm of CO yielded two heterobimetallic compounds: [MoCo(CO)5(PPh3)2(η5-C5H5)] (1a) and [MoCo(CO)6(PPh3)(η5-C5H5)] (1b). Both compounds were characterized by mass, IR, 1H, 13C and 31P NMR spectra. The X-ray crystal structure of 1b was determined. The cobalt centre of 1b has acquired three carbonyl groups and released two triphenylphosphine ligands during the reaction. The only PPh3 which remained on the cobalt centre was in the axial position of the trigonal bipyramidal structure, thus avoiding steric interaction with ligands from the molybdenum fragment. The molybdenum centre is in a ‘four-legged piano stool’ configuration. From the reaction of Na[Mo(CO)3(η5-C5H5)] and CoCl(P(OMe)3)5 in tetrahydrofuran, an unexpected bimetallic compoun[ [Mo(CO)2(P(OMe)3(η5-C5H5)]2 (6) was obtained which was characterized by mass, IR, 1H, 13C and 31P NMR spectra. The molecular structure of 6 was also determined by X-ray diffraction. The centrosymmetric complex is a typical four-legged piano-stool dimer. The M---M bond length (3.239 Å) is longer than the sum of the metal radii.
Keyword Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemistry and Molecular Biosciences
 
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