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Mandatory Fields
CUNNINGHAM, D,HIGGINS, T,MCARDLE, P,CORRIGAN, W,MANNING, AR
1994
October
Journal Of Organometallic Chemistry
THE STRUCTURES OF 2 [FE(ETA-4-C7H8)(CO)2(L)] COMPLEXES (C7H8=NORBORNADIENE - L=CNME OR PPH3)
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Optional Fields
IRON DIENE ISOCYANIDE PHOSPHINE CARBONYL CRYSTAL STRUCTURE TRICARBONYL COMPLEXES MOLECULAR-STRUCTURES BEHAVIOR CRYSTAL
479
103
108
Two [Fe(eta4-C7H8)(CO)2(L)] complexes (C7H8 = norbornadiene) have been prepared and their structures determined by X-ray diffraction. When L = CNMe, the coordination about Fe is best described as trigonal bipyramidal with the apical positions occupied by CNMe and one C=C. It is distorted towards square pyramidal, in part due to the short 'bite' of the C7H8 ligand. When L = PPh3, a similar distortion is found, but it is so great that the coordination about Fe is close to square pyramidal, with an apical CO ligand. The relevance of these structures to the rotation of the diene ligand in [Fe(eta4-diene)(CO)3] complexes is discussed.
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