Reactions of molybdenum-cobalt complex with phenylacetylene: X-ray crystal structure of [MoCo(CO)4{CPhCHCHCPh}(η5-C5H5)]

Hong, Fung-E ., Lue, I-Ren, Lo, Shih-Chun and Lin, Chu-Chieh (1995) Reactions of molybdenum-cobalt complex with phenylacetylene: X-ray crystal structure of [MoCo(CO)4{CPhCHCHCPh}(η5-C5H5)]. Journal of organometallic chemistry, 495 1-2: 97-101. doi:10.1016/0022-328X(94)05389-S


Author Hong, Fung-E .
Lue, I-Ren
Lo, Shih-Chun
Lin, Chu-Chieh
Title Reactions of molybdenum-cobalt complex with phenylacetylene: X-ray crystal structure of [MoCo(CO)4{CPhCHCHCPh}(η5-C5H5)]
Formatted title
Reactions of molybdenum-cobalt complex with phenylacetylene: X-ray crystal structure of [MoCo(CO)4{CPhCHCHCPh}(η5-C5H5)]
Journal name Journal of organometallic chemistry   Check publisher's open access policy
ISSN 0022-328X
Publication date 1995-06-14
Year available 1995
Sub-type Article (original research)
DOI 10.1016/0022-328X(94)05389-S
Open Access Status
Volume 495
Issue 1-2
Start page 97
End page 101
Total pages 5
Place of publication Lausanne
Publisher Elsevier Sequoir
Language eng
Subject 0303 Macromolecular and Materials Chemistry
030302 Nanochemistry and Supramolecular Chemistry
030306 Synthesis of Materials
020504 Photonics, Optoelectronics and Optical Communications
Abstract Reaction of [MoCo(CO)(5)(PPh(3))(2)(eta(5)-C5K5)] (1) with phenylacetylene in tetrahydrofuran at 60 degrees C produced a heterobimetallic compound, [MoCo(CO)(4)(CPhCHCHCPh)(eta(5)-C5H5)] (2), in high yield. Compound 2 was characterized by mass, infrared and H-1, C-13 and P-31 NMR spectra. The X-ray crystal structure of 2 was determined: orthorhombic, P-bca, a = 12.479(3), b = 15.975(3), c = 21.570(3) Angstrom, V = 4299.8(15) Angstrom(3) and Z = 8, R(W)(F) = 4.00% for 2143 (F > 4 sigma(F)) observed reflections. In 2, the cobalt fragment is at apical and the molybdenum fragment is at basal position of the pseudo-pentagonal pyramidal structure. [MoCo(CO)(4){mu-PhC(2)H}(PPh(3))(eta(5)-C5H5)] (3) was obtained in excellent yield from the reaction of 1 with phenylacetylene at lower temperature. Compound 3 can be quantitatively converted into 2 by reaction with excess phenylacetylene at 60 degrees C.
Formatted abstract
Reaction of [MoCo(CO)5(PPh3)2(η5-C5H5)] (1) with phenylacetylene in tetrahydrofuran at 60°C produced a heterobimetallic compound, [MoCo(CO)4{CPhCHCHCPh}(η5-C5H5)] (2), in high yield. Compound 2 was characterized by mass, infrared and 1H, 13C and 31P NMR spectra. The X-ray crystal structure of 2 was determined: orthorhombic, Pbca, a = 12.479(3), B = 15.975(3), C = 21.570(3) Å, V = 4299.8(15) Å3 and Z = 8, Rw(F) = 4.00% for 2143 (F> 4σ(F)) observed reflections. In 2, the cobalt fragment is at apical and the molybdenum fragment is at basal position of the pseudo-pentagonal pyramidal structure. [MoCo(CO)4{μ-PhC2H}(PPh3)(η5-C5H5)] (3) was obtained in excellent yield from the reaction of 1 with phenylacetylene at lower temperature. Compound 3 can be quantitatively converted into 2 by reaction with excess phenylacetylene at 60°C.
Keyword Molybdenum
Cobalt
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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