Structure of Zn3P2

Author: Zanin I.   Aleinikova K.   Afanasiev M.   Antipin M.  

Publisher: Springer Publishing Company

ISSN: 0022-4766

Source: Journal of Structural Chemistry, Vol.45, Iss.5, 2004-09, pp. : 844-848

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Abstract

The structure of Zn3P2 (P 42/nmc, a = b = 8. 0785 Å, c = 11. 3966 Å) was solved and refined to R = 3. 2% in a precision X-ray diffraction experiment (λ-MoK a, graphite monochromator on a primary beam, 27,496 reflections) . Interatomic distances and bond angles have been determined. The fcc lattice of the structure is built from phosphorus atoms, and the zinc atoms occupy 3/4 of all tetrahedral voids; the structure is described by two equivalent models where 1/4 occupied (by zinc atoms) and 1/4 vacant voids change places. The zinc atoms that occupy the voids following the diamond principle do not change places.