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ERIC Number: EJ913306
Record Type: Journal
Publication Date: 2010-Mar
Pages: 5
Abstractor: As Provided
Reference Count: 7
ISBN: N/A
ISSN: ISSN-0021-9584
Teaching Nanochemistry: Madelung Constants of Nanocrystals
Baker, Mark D.; Baker, A. David
Journal of Chemical Education, v87 n3 p280-284 Mar 2010
The Madelung constants for binary ionic nanoparticles are determined. The computational method described here sums the Coulombic interactions of each ion in the particle without the use of partial charges commonly used for bulk materials. The results show size-dependent lattice energies. This is a useful concept in teaching how properties such as melting point are critically dependent on the size of the nanostructure. To use this method to determine the bulk Madelung constant, the summation must use a carefully constructed building unit. These are developed for NaCl, CsCl, and ZnS (zinc blende) structure types. (Contains 5 figures and 1 table.)
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A