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  Home > JCE Print > Journal of Chemical Education > Issues > 2007  > November  >
In the Laboratory
Manipulation of a Schlenk Line: Preparation of Tetrahydrofuran Complexes of Transition-Metal Chlorides
Craig M. Davis and Kelly A. Curran
Department of Chemistry, Xavier University, Cincinnati, OH 45207-4221
Cover
November 2007
Vol. 84 No. 11
p. 1822

Abstract
Before taking an inorganic laboratory course few students have experience handling air-sensitive materials using Schlenk techniques. This exercise introduces them to techniques they will employ in later syntheses. The procedure involves the formation of anhydrous tetrahydrofuran complexes of transition-metal chlorides from metal-chloride hydrates; each reaction features a dramatic color change. Concurrent with the manipulations that are taught, several principles from both general chemistry and the inorganic lecture course are brought to life.
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Instructions for the students and notes for the instructor are available.
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Citation
Davis, Craig M.; Curran, Kelly A. J. Chem. Educ. 2007, 84, 1822.
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Keywords
Coordination Compounds; Hands-On Learning / Manipulatives; Inorganic Chemistry; Laboratory Instruction; Synthesis; Transition Elements; Upper-Division Undergraduate
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History
Created:
Last Updated:
9/19/2007
9/27/2007
 Caution! 
Experiments, laboratory exercises, lecture demonstrations, and other descriptions of the use of chemicals, apparatus, instruments, computers, and computer interfaces are presented in the Journal of Chemical Education as illustrative of new or improved ideas or concepts in chemistry instruction and are directed at qualified teachers. Although every effort is made to assure and encourage safe practices and safe use of chemicals, the Journal of Chemical Education cannot assume responsibility for uses made of its published materials. Many chemicals are hazardous. Precautions for the safe use of hazardous chemicals and directions for their proper disposal are described in the Material Safety Data Sheets and on the labels. We strongly urge all those planning to use materials from our pages to make choices and to develop procedures for laboratory and classroom safety in accordance with local needs and situations.
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