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Reaction of Nickel(I) Complexes conntining Arsine Ligands with Electron-deficient Olefins. Dianionic and Neutral Olefin Ligands in Nickel(II) and Nickel(III) Complexes

DOI: 10.1039/DT9820000535

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 535 - 540 (1982)

Update date:2022-09-26

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Authors:

Booth, Brian L.Booth, Brian L.

McAuliffe, Charles A.McAuliffe, Charles A.

Stanley, Grahame L.Stanley, Grahame L.

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Article abstract of DOI:10.1039/DT9820000535

The reaction of 4 2 complex, from which can be obtained the BPh4(1-) and PF6(1-)derivatives.Infrared spetra and other measurements allow the assignment of a cis-bridging dianionic tcne(2-) ligand.Reaction of 4 with 7,7,8,8-tetracyanoquinodimethane (tcnq) in a 1:3 ratio gives the planar ClO4; this, and the BPh4(1-) derivative, are diamagnetic and contain the cis-bridging tcnq(2-) dianion.Emoloying greater amounts of tcnq in the d7 nickel(III) five-co-ordinate species 2, which exhibits an isotropic e.s.r. signal, g = 2.5, and μeff = 1.88 μβ.Reaction of the five-co-ordinate ClO4 with tcne yields either ClO4 (X = Cl or NCS) or X (X = Cl, Br, or I).Both of these types of of complexes are six-co-ordinate and contain N-bonded unidentate neutral tcne ligands.We have obtained no evidence for olefinic bonding in any of these complexes.

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Product name:{Ni((CH3)(C6H5)As(CH2)2As(C6H5)(CH3))2((NC)2CC(CN)2)2}(2+)*ClO4(1-)*Cl(1-)

Cas No:82569-37-7

82569-37-7

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