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Autor/inn/enCollett, Joel D.; Krause, Jeanette A.; Guan, Hairong
TitelMultiweek 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
QuelleIn: Journal of Chemical Education, 98 (2021) 2, S.592-599 (8 Seiten)Infoseite zur Zeitschrift
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ZusatzinformationORCID (Guan, Hairong)
Spracheenglisch
Dokumenttypgedruckt; online; Zeitschriftenaufsatz
ISSN0021-9584
SchlagwörterInorganic Chemistry; Science Instruction; Science Laboratories; College Science; Undergraduate Study; Inquiry; Spectroscopy; Scientific Concepts; Concept Formation; Science Process Skills; Science Experiments; Laboratory Experiments
AbstractInorganic 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. (As Provided).
AnmerkungenDivision 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
Erfasst vonERIC (Education Resources Information Center), Washington, DC
Update2022/1/01
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