Metallocene halides. Part I. Synthesis, spectra, and redistribution equilibria of di-π-cyclopentadienyldihalogeno-titanium(IV),-zirconium-(IV), and -hafnium(IV)

P. M. Druce; B. M. Kingston; M. F. Lappert; T. R. Spalding; R. C. Srivastava

doi:10.1039/J19690002106

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Metallocene halides. Part I. Synthesis, spectra, and redistribution equilibria of di-π-cyclopentadienyldihalogeno-titanium(IV),-zirconium-(IV), and -hafnium(IV)

P. M. Druce, B. M. Kingston, M. F. Lappert, T. R. Spalding and R. C. Srivastava

Abstract

An improved synthesis of (π-C₅H₅)₂HfCl₂ and new method for preparing Group IVA metallocene fluorides, bromides, and iodides from either boron halides or C₆F₅CN, are reported. Vibrational (4000–600 cm.^–1), ¹H n.m.r., and mass spectra are presented. The mixed halides (π-C₅H₅)₂MClBr have been identified by n.m.r. spectroscopy; in tetrahydrofuran solutions, redistribution equilibria (π-C₅H₅)₂MCl₂+(π-C₅H₅)₂MBr₂⇌ 2(π-C₅H₅)₂MClBr at 38° are approximately statistical.

This article is part of the themed collection: A collection of papers in memory of Professor Michael Lappert

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DOI: https://doi.org/10.1039/J19690002106
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J. Chem. Soc. A, 1969, 2106-2110

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Metallocene halides. Part I. Synthesis, spectra, and redistribution equilibria of di-π-cyclopentadienyldihalogeno-titanium(IV),-zirconium-(IV), and -hafnium(IV)

P. M. Druce, B. M. Kingston, M. F. Lappert, T. R. Spalding and R. C. Srivastava, J. Chem. Soc. A, 1969, 2106 DOI: 10.1039/J19690002106

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Journal of the Chemical Society A: Inorganic, Physical, Theoretical

Metallocene halides. Part I. Synthesis, spectra, and redistribution equilibria of di-π-cyclopentadienyldihalogeno-titanium(IV),-zirconium-(IV), and -hafnium(IV)

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Metallocene halides. Part I. Synthesis, spectra, and redistribution equilibria of di-π-cyclopentadienyldihalogeno-titanium(IV),-zirconium-(IV), and -hafnium(IV)

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