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Borophosphates—A Neglected Class of Compounds: Crystal Structures of M II [BPO 5 ] (M II Ca, Sr) and Ba 3 [BP 3 O 12 ]
Author(s) -
Kniep Rüdiger,
Gözel Güller,
Eisenmann Brigitte,
Röhr Caroline,
Asbrand Matthias,
Kizilyalli Meral
Publication year - 1994
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199407491
Subject(s) - tetrahedron , crystallography , microporous material , crystal structure , chemistry , polyhedron , combinatorics , mathematics , organic chemistry
Vertex‐sharing BO 4 and PO 4 tetrahedra form the framework of the title compounds. Ca[BPO 5 ] and Sr[BPO 5 ] crystallize in the stillwellite structural type and contain tetrahedral chain anions ∞ 1 [BPO 5 2− ], which can be described as loop‐branched “dreier” single chains. In Ba 3 [BP 3 O 12 ] the ∞ 1 tetrahedral anions form “zweifach” open “vierer” single chains. Given these results and the known linking modes of tetrahedral units, it is expected that borophosphates with layered and framework structures, as well as microporous structures, can be found.