| Literature DB >> 16933954 |
Mohamed M Ibrahim1, Cristina Pérez Olmo, Teame Tekeste, Jan Seebacher, Guosen He, José A Maldonado Calvo, Karin Böhmerle, Gunther Steinfeld, Horst Brombacher, Heinrich Vahrenkamp.
Abstract
The complete array of those hydrotris(pyrazolyl/thioimidazolyl)borate ligands that were developed and used in the author's laboratories, with N3, N2S, NS2, and S3 donor sets, was scanned for their ability to form Zn-OH2 and Zn-OH complexes. The coordination motifs found were Zn-OH2, Zn-OH, Zn-OH-Zn, and Zn-O2H3-Zn. Of these, the well-established Zn-OH motif was complemented with novel species bearing N3, NS2, and S3 tripods. The Zn-OH2 motif was observed only with pyrazolylborate ligands and only in unusual situations with coordination numbers higher than 4 for zinc. The new Zn-OH-Zn motif was realized for three different pyrazolylborates, for one NS2 tripod, and for two S3 tripods. Finally, it was verified that the Zn-O2H3-Zn motif again occurs only with pyrazolylborate ligands. The new complexes were identified by a total of 11 structure determinations.Entities:
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Year: 2006 PMID： 16933954 DOI： 10.1021/ic060752f
Source DB: PubMed Journal: Inorg Chem ISSN： 0020-1669 Impact factor: 5.165