Issue 6, 2002
From the journal:

Journal of the Chemical Society, Dalton Transactions

Ether and crown ether adduct complexes of sodium and potassium cyclopentadienide and methylcyclopentadienide—molecular structures of [Na(dme)Cp]∞, [K(dme)0.5Cp]∞, [Na(15-crown-5)Cp], [Na(18-crown-6)CpMe] and the “naked Cp−” complex [K(15-crown-5)2][Cp]

Marcus L. Cole,†a   Cameron Jones*a  and  Peter C. Junk*b  

* Corresponding authors

a Department of Chemistry, University of Cardiff, P.O. Box 912, Park Place, Cardiff, UK
E-mail: jonesca6@cf.ac.uk

b School of Chemistry, Box 23, Monash University, Clayton, Vic, 3800, Australia
E-mail: peter.junk@sci.monash.edu.au

Abstract

The molecular structure, spectroscopy and mass spectrometry of the following compounds are described: [Na(dme)Cp]∞ (polymeric zigzag chain), [K(dme)0.5Cp]∞ (2-dimensional polymeric zigzag), [Na(15-crown-5)Cp] (monomeric), [Na(18-crown-6)CpMe] (monomeric) and [K(15-crown-5)2][Cp] {K(15-crown-5)2 cation/naked cyclopentadienide anion}. The syntheses of the related species [Na(dme)CpMe], [K(dme)0.5CpMe], [Na(15-crown-5)CpMe], [Na(18-crown-6)Cp] and [K(15-crown-5)2][CpMe] are reported. The choice of coordination modes displayed by those species structurally characterised is discussed, particularly in terms of steric and electrostatic considerations.

Graphical abstract: Ether and crown ether adduct complexes of sodium and potassium cyclopentadienide and methylcyclopentadienide—molecular structures of [Na(dme)Cp]∞, [K(dme)0.5Cp]∞, [Na(15-crown-5)Cp], [Na(18-crown-6)CpMe] and the “naked Cp−” complex [K(15-crown-5)2][Cp]

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Article information

DOI
https://doi.org/10.1039/B109124G
Article type
Paper
Submitted
08 Oct 2001
Accepted
03 Jan 2002
First published
22 Feb 2002

J. Chem. Soc., Dalton Trans., 2002, 896-905

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Ether and crown ether adduct complexes of sodium and potassium cyclopentadienide and methylcyclopentadienide—molecular structures of [Na(dme)Cp]∞, [K(dme)0.5Cp]∞, [Na(15-crown-5)Cp], [Na(18-crown-6)CpMe] and the “naked Cp−” complex [K(15-crown-5)2][Cp]

M. L. Cole, C. Jones and P. C. Junk, J. Chem. Soc., Dalton Trans., 2002, 896 DOI: 10.1039/B109124G

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