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Molecular Models of Solid State Metal Boride Structures

✍ Scribed by Thomas P. Fehlner

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
188 KB
Volume
154
Category
Article
ISSN
0022-4596

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✦ Synopsis

Based on existing connections between borane cages and boron-rich metal borides on the one hand and metal clusters containing boron atoms and metal-rich borides on the other, selected metallaboranes of intermediate stoichiometry are investigated as models for transition metal borides with similar M/B ratios. This study is possible due to the recent development of a general route to metallaboranes for group 5+9 metals that permits the distinct role of the transition metal in metallaborane cluster bonding to be revealed. The comparison shows that it is MM and MB covalent bonding rather than M and B electronic charges that drives change in structure with metal identity.

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