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Showing papers by "Harvey J. Wasserman published in 1983"

Journal Article•DOI•
Synthesis of cyclohexadiene complexes of (methylidyne)triruthenium clusters. The crystal structure of (.mu.-H)Ru3(.mu.3-COMe)(CO)8(1,3-C6H8) and a redetermination of the structure of (.mu.-H)Ru3(.mu.-COMe)(CO)10

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Melvyn Rowen Churchill, Lawrence R. Beanan, Harvey J. Wasserman, Clifford Bueno, Zuraidah Abdul Rahman, Jerome B. Keister 
01 Sep 1983-Organometallics
TL;DR: Le premier complexe du titre cristallise dans P1 avec Z=2; affinement jusqu'a R=2,3%.

24 citations

Journal Article•DOI•
Structural study of W[.eta.5-C5Me4(tert-Bu)](.eta.2-MeC.tplbond.CMe)Cl2, a paramagnetic tungsten(III) species with a four-electron acetylene-metal bond

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Melvyn Rowen Churchill, Harvey J. Wasserman
01 Jun 1983-Organometallics

22 citations

Journal Article•DOI•
Crystal and molecular structure of W(.eta.2-HC.tplbond.COAlCl3)(CO)(PMe3)3Cl, a product of the coupling of methylidyne and carbonyl ligands on tungsten

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Melvyn Rowen Churchill, Harvey J. Wasserman
01 Jan 1983-Inorganic Chemistry
TL;DR: A single-crystal x-ray diffraction analysis has been performed on the title complex, which was prepared by Holmes and Schrock through AlCl/sub 3/promoted coupling of W(CH)(PMe/sub3/)/sub 4/Cl with carbon monoxide.
Abstract: A single-crystal x-ray diffraction analysis has been performed on the title complex, which was prepared by Holmes and Schrock through AlCl/sub 3/-promoted coupling of W(CH)(PMe/sub 3/)/sub 4/Cl with carbon monoxide. The complex crystallizes in the centrosymmetric monoclinic space group P2/sub 1//c with a = 10.420 (2) A, b = 12.896 (2) A, c = 19.319 (4) A, ..beta.. = 105.880 (15)/sup 0/, V = 2497.1 (9) A/sup 3/, rho(calcd) = 1.73 g cm/sup -3/ for Z = 4, and mol wt = 650.0. Automated four-circle diffractometer intensity data (Syntex P2/sub 1/) were used to solve the structure; refinement led to R/sub F/ = 3.2% and R/sub wF/ = 3.0% for all 4423 unique reflections with 4.0/sup 0/ < 2 theta < 50.0/sup 0/ (Mo K..cap alpha.. radiation). The octahedral coordination environment about the central tungsten atom consists of three meridional PMe/sub 3/ ligands, a terminal carbonyl, a chloride, and an eta/sup 2/-HC double bond COAlCl/sub 3/ ligand. The last is oriented parallel to the carbonyl ligand and is best described as a substituted acetylene with an acetylenic carbon-carbon linkage of 1.316 (6) A and short tungsten-carbon distances of 2.034 (4) and 2.009 (5) A. The aluminum-oxygen distance is 1.751 (3)more » A; this value represents a significantly stronger Al-O interaction than has been observed in other structures containing Al-O (carbonyl; acyl) linkages.« less

18 citations

Journal Article•DOI•
X-ray structural study of an alkylidene-carbonyl complex of tungsten(IV): W(:CHCMe3)(CO)(PMe3)2Cl2

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Melvyn Rowen Churchill, Harvey J. Wasserman
01 May 1983-Inorganic Chemistry

12 citations

Journal Article•DOI•
Crystal structure of a complex with a substituted methylene ligand bound to a triosmium cluster: Os3(CO)10(μ-CO)(μ-CHSiMe3)

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Melvyn Rowen Churchill1, Harvey J. Wasserman1•
University at Buffalo1
14 Jun 1983-Journal of Organometallic Chemistry
TL;DR: The complex Os3(CO)10(μ-CO)(μ-CHSiMe3) as discussed by the authors, which is an ordered analogue of the species Os3 (CO)2 (μ-CA), suffers from a four-fold disorder.

6 citations

Journal Article•DOI•
Structure of an asymmetric dinuclear organotantalum complex with three different bridging ligands: [(η5-C5Me4Et)TaCl2](μ-η1-N,η2-C,N-NCHMe)(μ-Cl)(μ-H)[(η5-C5Me4Et)TaCl]

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Melvyn Rowen Churchill1, Harvey J. Wasserman1•
University at Buffalo1
10 May 1983-Journal of Organometallic Chemistry
TL;DR: In this paper, a complete three-dimensional X-ray diffraction study was performed on the complex (η 5 -C 5 Me 4 Et)TaCl 2 ] with acetonitrile and the results showed that the complex crystallizes in the non-centrosymmetric orthorhombic space group Pbc 2 1 [C 2υ 5 ; No. 29] with a 9.936(2), b 18.896(5), c 15.4(3) A 3 and Z = 4.1% for all 4

3 citations

Journal Article•DOI•
Crystal and molecular structure of [W(CH2PMe3)(CO)2Cl(PMe3)3][CF3SO3], a seven-coordinate tungsten(II) complex produced by transfer of a trimethylphosphine to the W:CH2 system

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Melvyn Rowen Churchill, Harvey J. Wasserman
25 Jan 1983-ChemInform

1 citations

Journal Article•DOI•
X-ray structural study of an alkylidene-carbonyl complex of tungsten(IV): W(:CHCMe3)(CO)(PMe3)2Cl2

[...]

Melvyn Rowen Churchill, Harvey J. Wasserman
30 Aug 1983-ChemInform