Organoelement Compounds
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ChemInform Abstract: Reorientation of the Alkyne Moiety in the Heterometallic Cluster (FeCo2(CO)9(EtC2Et)), Induced by Phosphine, Phosphite, or Isonitrile Substitution for CO. Crystal Structure of (FeCo2(CO)8(PPh3)(EtC2Et)).
First published: August 16, 1988
Abstract
The spectroscopic and structural data of the parent cluster (I) are compared with those of its monosubstitution derivatives (III) which are formed as shown in the scheme.
ChemInform Abstract
The spectroscopic and structural data of the parent cluster (I) are compared with those of its monosubstitution derivatives (III) which are formed as shown in the scheme. Their structure is confirmed by X-ray structure analysis of the title compound (IIIa) (space group P1, Z=2). The substitution of a CO ligand has caused the reorientation of the alkyne moiety in the ground state. In similar way, the diphosphine-bridged dimers (IV) are obtained. The products are characterized by elemental analysis, IR, 31P(1H), 1H, and 13C(1H) NMR spectral data.
