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ERIC Number: EJ918439
Record Type: Journal
Publication Date: 2010-Jul
Pages: 3
Abstractor: As Provided
Reference Count: 11
ISSN: ISSN-0021-9584
Infrared Spectroscopic Analysis of Linkage Isomerism in Metal-Thiocyanate Complexes
Baer, Carl; Pike, Jay
Journal of Chemical Education, v87 n7 p724-726 Jul 2010
We developed an experiment suitable for an advanced inorganic chemistry laboratory that utilizes a cooperative learning environment, which allows students to develop an empirical method of determining the bonding mode of a series of unknown metal-thiocyanate complexes. Students synthesize the metal-thiocyanate complexes and obtain the FT-IR spectrum of each one, along with reference complexes of known coordination. They are then asked to develop a quantitative approach of comparing the unknown metal-thiocyanate complexes to the references and deduce the most feasible bonding mode of each metal to the thiocyanate ligand, whether via the sulfur or nitrogen atom. The students can then explain their results using hard-soft acid-base concepts. (Contains 5 tables.)
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:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A