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Bonding effects and the crystal structures of (NH4)(2)[Cu(H2O)(6)](SO4)(2) and its (H2O)-O-18 substituted form at 9.5 K


Figgis, BN and Sobolev, AN and Simmons, CJ and Hitchman, MA and Stratemeier, H and Riley, MJ, Bonding effects and the crystal structures of (NH4)(2)[Cu(H2O)(6)](SO4)(2) and its (H2O)-O-18 substituted form at 9.5 K, Acta Crystallographica. Section B, 56, (3) pp. 438-443. ISSN 0108-7681 (2000) [Refereed Article]

DOI: doi:10.1107/S0108768100000963


The crystal structures of the Tutton salts (NH4)2-[Cu(H2O)6](SO 4)2, diammonium hexaaquacopper disulfate, formed with normal water and isotopically substituted H2 18O, have been determined by X-ray diffraction at 9.5 K and are very similar, with Cu - O(7) the longest of the Cu - O bonds of the Jahn-Teller distorted octahedral [Cu(H2O)6]2+ complex. It is known that structural differences accompany deuteration of (NH4)2[Cu(H2O)6](SO 4)2, the most dramatic of which is a switch to Cu - O(8) as the longest such bond. The present result suggests that the structural differences are associated with hydrogen-bonding effects rather than with increased mass of the water ligands affecting the Jahn-Teller coupling. The Jahn-Teller distortions and hydrogen-bonding contacts in the compounds are compared with those reported for other Tutton salts at ambient and high pressure.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Inorganic chemistry
Research Field:Transition metal chemistry
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Hitchman, MA (Dr Michael Hitchman)
UTAS Author:Stratemeier, H (Dr Horst Stratemeier)
ID Code:19101
Year Published:2000
Web of Science® Times Cited:14
Deposited By:Chemistry
Deposited On:2000-08-01
Last Modified:2011-09-19

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