Organoelement Compounds
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ChemInform Abstract: Synthesis and Crystal Structures of the Dimetal Compounds (CoRh(CO)2(PPh3)(η4-C4Me4)(η5-C2B9H11)), (Rh2(CO)2(PPh3)2(η5-C2B9H11)), and (RhIrH(.mu±sigma.:η5-C2B9H10)(CO)3(PPh3)2).
First published: September 11, 1990
Abstract
The complex (V) is also obtained in an unusual reaction involving addition of BH3·THF to (III).
ChemInform Abstract
The complex (V) is also obtained in an unusual reaction involving addition of BH3·THF to (III). The formation process of the salt (VIII) can be reversed by addition of HBF4·OEt2. The structures of the complexes (III) (space group C2/c, Z = 8), (V) (P21/a, Z=4) and (VII) (P1, Z=2) are established by single-crystal X-ray diffraction studies. The compounds possess differently located three-center two-electron B-H-M bonds. Whereas in (III) it is a BH group which is α to a CH fragment in the pentagonal face of the cage, in (V) it is a BH group which is β to a CH group.
