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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume 16 (2011) pp 232-237

Space Subdivision and Voids Inside Body-Centred Cubic Lattices

Claudio Giomini* and Giancarlo Marrosu

SBAI Department, via del Castro Laurenziano 7, 00161 Rome (Italy),
Received May 12, 2011. Accepted July 16, 2011.

Published: 23 September 2011

Abstract. The paper deals with the space inside body-centred cubic lattices, the ways it can be subdivided, the cavities therein and the particles they can host, the structures accordingly formed, the related space occupancy. Comparisons are made with the other cubic lattices. The concept of bipyramidal (usually known as octahedral) cavity is questioned; it is proposed to replace the expression “bipyramidal cavity” with “digonal site”.

Key Words: In the Classroom; general chemistry; solid state; body-centred cubic lattice; voids

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