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Pr(16)Mo(21)O(56)

Pr(16)Mo(21)O(56)

Patrick Gougeon, Philippe Gall

Acta Crystallogr Sect E Struct Rep Online. 2011 May 1;67(Pt 5):i34-i35.

PMID: 21754260

Abstract:

The structure of hexa-deca-praseodymium henicosa-molybden-um hexa-penta-contaoxide, Pr(16)Mo(21)O(56), is isotypic with other rare earth representatives of formula type RE(16)Mo(21)O(56) (RE = La, Ce, Nd). It is characterized by Mo(10)O(18) (i)O(8) (a) units (where i = inner and a = apical O atoms) containing biocta-hedral Mo(10) clusters and octa-hedral MoO(6) units that share some of their O atoms to form the Mo-O framework. The two independent Mo(10) cluster units are centred at Wyckoff positions 2b and 2c and have point-group symmetry [Formula: see text]. The Mo atom of the MoO(6) unit is likewise situated at an inversion centre (2d). The eight crystallographically different Pr(3+) cations occupy irregular voids in the framework with coordination numbers to the O atoms varying between 8 and 11.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP7440100	Praseodymium		7440-10-0	Price

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