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ERIC Number: EJ1036383
Record Type: Journal
Publication Date: 2014-Aug
Pages: 4
Abstractor: As Provided
Reference Count: 12
ISSN: ISSN-0021-9584
Mechanochemical Synthesis of Two Polymorphs of the Tetrathiafulvalene-Chloranil Charge Transfer Salt: An Experiment for Organic Chemistry
Wixtrom, Alex; Buhler, Jessica; Abdel-Fattah, Tarek
Journal of Chemical Education, v91 n8 p1232-1235 Aug 2014
Mechanochemical syntheses avoid or considerably reduce the use of reaction solvents, thus providing green chemistry synthetic alternatives that are both environmentally friendly and economically advantageous. The increased solid-state reactivity generated by mechanical energy imparted to the reactants by grinding or milling can offer alternative synthetic routes, occasionally yielding products (structures or stoichiometries) not obtainable via solution chemistry. Additionally, small volumes of solvents added during grinding can control the polymorphic form of the products. An undergraduate organic chemistry experiment is described involving liquid-assisted grinding (LAG) synthesis of the green and black polymorphs of the tetrathiafulvalene-chloranil (TTF-CA) charge transfer salt and their solid state characterization using FT-IR and melting point analysis.
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; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A