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Haidingerite (II). From Valence Summation to Hydrogen Bonding
Author(s) -
Donnay J. D. H.,
Donnay Gabrielle
Publication year - 1972
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19720070104
Subject(s) - valence (chemistry) , hydrogen bond , molecule , hydrogen , crystallography , chemistry , inorganic chemistry , organic chemistry
The haidingerite formula must be written CaAsO 3 (OH) · H 2 O. The calcium coordination number, reported as 6, is shown to be 7 by valence summation. Chains of hydrogen‐bonded arsenate groups are confirmed. The two protons of the water molecule form hydrogen bonds to neighboring chains.