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A TiP2O7 superstructure

Stefan T. Norberg (Institutionen för oorganisk kemi) ; Göran Svensson (Institutionen för oorganisk kemi) ; Jörgen Albertsson (Institutionen för oorganisk kemi)
Acta Crystallographica Section C - Crystal Structure Communications (0108-2701). Vol. 57 (2001), 3, p. 225-227.
[Artikel, refereegranskad vetenskaplig]

A room-temperature structural model of titanium pyrophosphate, TiP2O7, has been determined from synchrotron X-ray data. The structure consists of TiO6 octahedra and PO4 tetrahedra sharing corners in a three-dimensional network. The PO4 tetrahedra form P2O7 groups connecting the TiO6 octahedra. The 3 x 3 x 3 superstructure differs substantially from the parent AB(2)O(7) structure. The P-O-P bonding angles of the pyrophosphate group are between 141.21 (12) and 144.51 (13)degrees for those groups not located on the threefold axis. The individual TiO6 octahedra and PO4 tetrahedra are somewhat distorted.

Nyckelord: Cubic 3*3*3 Superstructure, Pyrophosphate, ZrV2O7, ZrP2O7

Denna post skapades 2009-09-09. Senast ändrad 2010-11-05.
CPL Pubid: 97681


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