- A 31P and 199Hg nuclear magnetic resonance and vibrational spectroscopic study of triarylphosphine complexes of HgCl2
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Complexes of the type 2 and HgCl2(P(4-XC6H4)3)2 (x = Me2N, MeO, Me, H, F, Cl) have been prepared.The tertiary phosphines have similar steric requirements but vary gratly in their basicities.The vibrational spectra of the complexes were measuredand each complex was found to have the expected bridging dimeric (1:1) or pseudotetrahedral monomeric (1:2 Hg/P) structure.Their 31P and 199Hg nmr parameters were investigated and is was found that J(Hg-P) increases with increasing phosphine basicity, decreasing temperature, and decreasing sample concentration in dichloromethane solution.It is concluded that changes in the hybridisation on the P and Hg atoms may be largely responsible for increases of J(Hg-P) with increasing phosphine basicity.
- Allman, Tim,Goel, Ram G.
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p. 615 - 620
(2007/10/02)
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