M. Gamasa, J. Gimeno, E. Lastra
May 24, 1988
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0
Influential Citations
34
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract The preparation and properties of novel tetranuclear copper(I) complexes of the type [Cu(CCR)(LL)]4 (LL = 2-(diphenylphosphine)pyridine (Ph2Ppy), R = tBu, ph; LL = bis(diphenylphosphino)methane (dppm), R = Ph) are described. The crystal structure of [Cu(μ3-η1-CCph)(Ph2Ppy-P)]4 has been determined by X-ray diffraction. Crystals are monoclinic, space group C2/c with Z = 4 in a unit cell of dimensions a 14.859(3), b 24.405(4), c 23.279(4) A and β 95.35(2)°; refinement gave R = 0.056 for 3586 reflections with I ≥ 2.5σ(I). The molecule consists of a tetrahedral “cluster” of copper atoms bearing four μ3-η1 phenylacetylide and four monodentate P-bonded 2-((diphenylphosphine)pyridine ligands (Ph2Ppy-P). IR, 1H and 31P{1H} NMR data are discussed.