Closo-[B21H18]-: a face-fused diicosahedral borate ion
Bernhardt, E.; Brauer, D.J.; Finze, M.; Willner, H.
Angewandte Chemie 46(16): 2927-2930
2007
ISSN/ISBN: 1433-7851 PMID: 17366499 DOI: 10.1002/anie.200604077
Accession: 056983747
Siamese borates: Syntheses are described for salts of the closo-[B21H18]− and fac-[B20H18]2− ions. The [B21H18]− ion is the first example of a singly charged closo-borate ion in which two icosahedral fragments are fused together such that they have a common face. The synthesis of novel weakly coordinating anions based on these frameworks is thus within reach.
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