Organonitriles as ligands in low-spin di[1,2-bis(diethylphosphino)ethane]iron complexes
- 1 January 1975
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 13,p. 1281-1283
- https://doi.org/10.1039/dt9750001281
Abstract
The complex trans-[FeCl2(depe)2][depe = 1,2-bis(diethylphosphino)ethane] reacts with Organonitriles, RCN, to give 1 : 1 complexes of the type trans-[FeCl(NCR)(depe)2]+ which have been isolated as their tetraphenylborate salts. When R = alkyl the 2 : 1 complexes trans-[Fe(NCR)2(depe)2]2+ are also formed. The reaction of the dinitriles. malononitrile (maln), 1,2-dicyanobenzene (dcb), and succinonitrile (sucn) have also been studied, I.r. and Mössbauer spectra for a selection of these complexes have been recorded and are discussed in an attempt to assess the relative importance of the σ-donor and π-acceptor properties of the various ligands in determining their co-ordinating ability.Keywords
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