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ERIC Number: EJ1287203
Record Type: Journal
Publication Date: 2021-Feb
Pages: 8
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: N/A
Multiweek Experiments for an Inorganic Chemistry Laboratory Course: Synthesis of Nickel Complexes Supported by a Tetradentate Ligand with a N[subscript 2]O[subscript 2] Donor Set
Collett, Joel D.; Krause, Jeanette A.; Guan, Hairong
Journal of Chemical Education, v98 n2 p592-599 Feb 2021
Inorganic Chemistry teaches students the concept that modifications to ligand structures, especially the donor properties, can have a drastic impact on the reactivity and stability of the metal complexes. Experiments described here reinforce this concept through the investigation of two tetradentate ligands derived from "o"-phenylenediamine and salicylaldehyde. The Schiff base ligand, H[subscript 2]salophen, reacts with Ni(OAc)[subscript 2]·4H[subscript 2]O to yield a maroon, square planar complex, Ni(salophen). Under the same conditions, the amine-type ligand, H[subscript 2]salophan, forms a light-blue compound analyzed as [Ni(Hsalophan)(OAc)][subscript 2]. The Ni(salophan) complex free of acetate may be produced from the reaction of H[subscript 2]salophan with Ni(OAc)[subscript 2]·4H[subscript 2]O in the presence of NaOH but undergoes ligand dehydrogenation to yield Ni(salophen). Students conducting these experiments have the opportunity to learn synthetic techniques and various characterization methods. Most importantly, the inquiry-guided experimental design helps them develop critical thinking skills and apply acquired knowledge to solving a research problem in a laboratory course.
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; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A