Dedicated to Professor Brigitte Eisenmann on the Occasion of her 65th Birthday
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Review
Structural Chemistry of Borophosphates, Metalloborophosphates, and Related Compounds†
Article first published online: 30 JUL 2007
DOI: 10.1002/zaac.200700232
Copyright © 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Issue
Zeitschrift für anorganische und allgemeine Chemie
Volume 633, Issue 10, pages 1517–1540, August 2007
Additional Information
How to Cite
Ewald, B., Huang, Y.-X. and Kniep, R. (2007), Structural Chemistry of Borophosphates, Metalloborophosphates, and Related Compounds. Zeitschrift für anorganische und allgemeine Chemie, 633: 1517–1540. doi: 10.1002/zaac.200700232
- †
Publication History
- Issue published online: 30 JUL 2007
- Article first published online: 30 JUL 2007
- Manuscript Received: 7 MAY 2007
- Abstract
- References
- Cited By
Keywords:
- Borophosphates;
- Metalloborophosphates;
- Structural chemistry
Abstract
A concept for the classification of crystalline (metallo)borophosphates in terms of structural chemistry is proposed and the compounds known to date are classified in an overview. Similarities and differences with (alumo)silicates and Liebau's classification are discussed with respect to the observation that the different borate and phosphate complexes are not interconnected arbitrarily in borophosphates. By combination and extension of existing concepts for silicates and borates a hierarchical system based on oligomeric building units has been developed. The observed connection rules are rationalized and the strong influence of the composition on dimensionality and structural motifs of the formed anions is pointed out. Likewise the effect of OH groups is taken into account by grading anions according to the degree of protonation (ratio O:OH). A general distinction is made between tetrahedral and mixed coordinated borophosphates. Metalloborophosphates are treated separately as special cases of borophosphates. Finally, anion-substituted compounds, border cases, and borate-phosphates complete the overview.