Gus J. Palenik

Structural characterisation of an acetylenic diphosphine derivative of π-cyclopentadienyliron dicarbonyl dimer: an unusual Mössbauer effect

Mossbauer spectroscopy has failed to detect the nonequivalent iron atoms in the novel compound [(π-C5H5)2Fe2(CO)3]2·Ph2PCCPPh2 which has been characterised by i.r., n.m.r., and X-ray studies.

The preparation and crystal structure of µ-oxido-bis[triphenylphosphinenitrosyliridium(I)]: a novel iridium nitrosyl compound containing a bridging oxygen and a bent metal–metal bond

µ-Oxido-bis[triphenylphosphinenitrosyliridium(I)]–C6H6 has been prepared by the reaction of trans-Ir(CO)Cl(PPh3)2 and nitrite ion in benzene–aqueous alcohol: its structure contains the first example of a bent iridium–iridium bond and a nitrosyl group π-bonded to an iridium atom.

A trans-effect in gallium complexes: the crystal structure of trichloro-(2,2′,2″-terpyridyl)gallium(III)

The molecular structure of GaCl3·terpyridyl is interpreted in terms of a trans-effect in d10 complexes which influences the M–X (X = halogen) distances and is instrumental in determining the geometry of the metal–halide complexes.

The structure of a copper complex of an essential sulphur-containing amino-acid; bis(methioninato)copper(II)

The first crystal structure of a copper complex of a sulphur-containing amino-acid, bis(methioninato)copper(II), has shown that the sulphur atom is not co-ordinated to the metal ion, suggesting a possible model for trans-methylation reactions.

A distorted octahedral gallium complex

The compound supposed to be GaCl3·bipy has been shown to be a dimer of true formula [GaCl2(bipy)2]+[GaCl4]–.

Reaction of a diazepine with chlorodicarbonylrhodium(I) dimer; the molecular structure of chloro-cis-dicarbonyl-(3,5,7-triphenyl-4H-1,2-diazepine)rhodium(I)

Chlorodicarbonylrhodium(I) dimer reacts with 3,5,7-triphenyl-4H-1,2-diazepine without cleavage of the N–N bond of the diazepine to yield chloro-cis-dicarbonyl (3,5,7-triphenyl-4H-1,2-diazepine)rhodium(I) in which the diazepine (in a twisted boat conformation) is co-ordinated to the rhodium(I) atom via only one nitrogen atom.

Geometry of dihalogenocarbene additions to heterocyclic olefins: an X-ray crystallographic study

The crystal structure of the product of addition of dichlorocarbene to 2-phenyl-1,3-dioxacyclohept-5-ene shows that the syn-isomer is formed.

The crystal structure of an octahedral high-spin MnIII complex, acetylacetonatobis-(N-phenylaminotroponiminato)manganese(III)

The crystal structure of acetylacetonatobis-(N-phenylaminotroponiminato)manganese(III) has revealed the first distorted octahedral complex of high-spin MnIII and has suggested empirical rules for predicting the final configurations of octahedral CuII and MnIII compounds.

Reaction of 3,5,7-triphenyl-4H-1,2-diazepine with di-iron nonacarbonyl; the X-ray crystal and molecular structure of a novel iron-containing bicyclo[5,1,1]-system

Reaction of Fe2(CO)9 with 3,5,7-triphenyl-4H-1,2-diazepine leads to cleavage of the N–N bond and formation of a nitrogen bridged complex which has been shown by X-ray crystallography to be a bicyclo[5,1,1]derivative.

Thiocyanate linkage isomers in palladium complexes. The crystal structure of isothiocyanatothiocyanato-[1,2-bis(diphenylphosphino)ethane]palladium(II)

Mixed thiocyanate co-ordination resulting from steric rather than electronic effects of the ligand has been found in the crystal structure of isothiocyanatothiocyanato-[1,2-bis(diphenylphosphino)ethane]palladium(II).