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ERIC Number: EJ925952
Record Type: Journal
Publication Date: 2011-Mar
Pages: 2
Abstractor: As Provided
Reference Count: 11
ISSN: ISSN-0021-9584
Preparation and Thermochromic Properties of Copper(II)-N,N-Diethylethylenediamine Complexes
Cui, Ai-Li; Chen, Xi; Sun, Long; Wei, Jing-Zhi; Yang, Jin; Kou, Hui-Zhong
Journal of Chemical Education, v88 n3 p311-312 Mar 2011
The synthesis and characterization of two copper(II) complexes, [Cu(deen)[subscript 2]](BF4)[subscript 2] and [Cu(deen)[subscript 2]](NO[subscript 3])[subscript 2] (deen = N,N-diethylethylenediamine), that show interesting thermochromic properties, are described. The subtle alternation of coordination geometry around Cu(II) is responsible for the color change from red to violet. This experiment is suitable for first-year chemistry students and could demonstrate one of the colorful properties of chelate compounds. (Contains 1 scheme and 2 figures.)
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