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Preparation and crystal structure of Guanidinium Cyclododecaphosphate Telluric Acid Hydrate: [C(NH 2 ) 3 ] 12 P 12 O 36 · 12 Te(OH) 6 · 24H 2 O
Author(s) -
AverbuchPouchot M. T.,
Schülke U.
Publication year - 1996
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19966221131
Subject(s) - crystallography , crystal structure , hydrate , crystallization , chemistry , hydrogen bond , adduct , ion , ring (chemistry) , molecule , organic chemistry
The title compound ist the first example of an adduct between telluric acid and the twenty four membered ring anion of a cyclododecaphosphate. [C(NH 2 ) 3 ] 12 P 12 O 36 · 12 Te(OH) 6 · 24 H 2 O crystallizes trigonal (rhomboedral: R3) with Z = 3 and the unit‐cell dimensions a = 15.854(9), c = 51.26(2) Å in the hexagonal setting. The crystal structure was solved by direct methods and refined to a final R value of 0.031. It is characterized by a succession of three different typs of alternating layers perpendicular to the c direction. This layers are connected only by hydrogen bonds. The individual layers are built up of A: P 12 O 36 anions, guanidinium cations and water of crystallisation, B: hexagonal arranged Te(OH) 6 groups and guanidinium cations and C: water of crystallization.