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The molecular structure of bis(triphenylphosphine)allene-palladium

Authors
Journal
Journal of Organometallic Chemistry
0022-328X
Publisher
Elsevier
Publication Date
Volume
65
Issue
3
Identifiers
DOI: 10.1016/s0022-328x(00)82279-2

Abstract

Abstract The molecular structure of [(C 6H 5) 3P] 2Pd(C 3H 4) has been determined from three-dimensional X-ray diffraction data. The crystal belongs to the triclinic system, space group P 1 , with two formula units in a cell of dimensions: a = 19.475(2), b = 10.204(2), c = 18.341(2) Å, α = 108.46(2), β = 85.46(1), and γ = 118.80(1)°. One of the olefinic bonds of allene is coordinated to the palladium atom: PdC(1) = 2.118(9) and PdC(2) = 2.067(8) Å. The coordinated allene is no longer linear, the C(1)C(2)C(3) angle being 148.3(8)°. The C(1)C(2) distance is 1.401(11) Å, whereas the uncoordinated bond remains unchanged [C(2)C(3) = 1.304(12) Å]. The Pd, P(1), P(2), C(1) and C(2) atoms lie almost in the same plane.

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