Showing papers by "Antony J. Deeming published in 1997"
TL;DR: In this paper, it was shown that the fluxionality is not cluster-centered since the 13C{1H} NMR spectrum for the CO ligands is invariant over a wide temperature range.
40 citations
TL;DR: In this paper, the general formula for cyclic dimers and linear polymers is presented.Addition of AgClO================== 4============ to======trans-[PtAg(ClO%);
33 citations
TL;DR: In this paper, a direct thermal reaction of Ru3(CO)12] with 1-methylpyrrole leads to the cluster [Ru3(μ-H)(μ3,η3-C4H3NMe)(CO)9] (1), in which metalation has occurred at the 3-position of the ring.
16 citations
TL;DR: In this paper, the two Os3 units are linked together by an OsNNOsNNNNNN ring in a boat conformation with the whole cluster adopting C2 symmetry and the two isomers are shown to correspond to related clusters derived from pyrazole.
11 citations
TL;DR: In this paper, the authors showed that the Pt-Mo nonbonding interaction has a large PtP-Mo angle [120.9(1) °] reflecting the reduced s-orbital contribution of the anionic phosphines PPhH∗Mo(CO)5∗.
8 citations
TL;DR: In this article, the chloride ligand trans to PEt2Ph was found to be labile and readily displaced by cyanide ion in methanol to give trans,mer-[IrCl2(CN)(PEt2P)3] as the only isomer.
Abstract: The chloride ligand trans to PEt2Ph in mer-[IrCl3(PEt2Ph)3] has been found to be labile and readily displaced by cyanide ion in methanol to give trans,mer-[IrCl2(CN)(PEt2Ph)3] as the only isomer. The trans,mer isomer may also be synthesized by treating trans,mer-[IrCl2(H2O)(PEt2Ph)3][ClO4] with cyanide ions. Irradiation of this isomer in dichloromethane with visible white light led initially to a mixture of the trans,mer isomer with the fac and cis,mer isomers, while extended irradiation gave almost exclusively the cis,mer isomer with none of the fac or trans,mer forms remaining. This contrasts with the visible irradiation of mer-[IrCl3(PEt2Ph)3] which gave exclusively the fac isomer. Reactions were followed by 31P-{1H} and 13C-{1H} NMR spectroscopy of 13CN-enriched samples and by Fourier-transform IR spectroscopy at around 2000 cm–1. The crystal structures of the trans,mer and cis,mer isomers of [IrCl2(CN)(PEt2Ph)3] have been determined. During the photolysis a cyano-bridged species derived from the fac isomer, probably fac,fac-[(PhEt2P)3Cl2Ir(µ-CN)IrCl(CN)(PEt2Ph)3]Cl, is observed as an intermediate but was not isolated. This salt disappears on extended irradiation. Addition of an excess of [N(PPh3)2]Cl totally suppressed the formation of the µ-CN species, consistent with the formula given, while only slightly affecting the rate of conversion of the trans,mer into the fac and cis,mer isomers on irradiation.
5 citations
TL;DR: In this article, the reaction of [Re2(CO)8(MeCN)2] with diazocyclopentadiene in refluxing tetrahydrofuran in a 1:1 molar ratio gave [Re( CO)3(C5H5)] (1), the cyclopentadienylidene complex [Re 2(CO]8(μ,η1:η5-C5 H4)] (2), and the fulvalene complex
2 citations