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Aqueous and Solid Phase Synthesis of [Ni(Me[subscript 3]en)(acac)]BPh[subscript 4] and Its Solvatochromic Properties: A Laboratory Experiment for First-Year Undergraduates

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Title: Aqueous and Solid Phase Synthesis of [Ni(Me[subscript 3]en)(acac)]BPh[subscript 4] and Its Solvatochromic Properties: A Laboratory Experiment for First-Year Undergraduates
Language: English
Authors: Zhiqiang Dong (ORCID 0009-0001-3326-1341), Bo Yi, Xin Chen, Yechao Chen, Ming-Qiang Qi, Yanping Ren (ORCID 0009-0009-6122-1580)
Source: Journal of Chemical Education. 2024 101(5):2080-2086.
Availability: 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
Peer Reviewed: Y
Page Count: 7
Publication Date: 2024
Document Type: Journal Articles
Reports - Descriptive
Education Level: Higher Education
Postsecondary Education
Descriptors: Scientific Concepts, Science Education, Science Laboratories, Science Experiments, College Freshmen, Undergraduate Study, College Science, Foreign Countries
Geographic Terms: China
DOI: 10.1021/acs.jchemed.3c01273
ISSN: 0021-9584
1938-1328
Abstract: A laboratory experiment that involves the aqueous and solid phase synthesis, characterization, and solvatochromic properties exploration of red complex [Ni(Me[subscript 3]en)(acac)]BPh[subscript 4] has been developed for first-year undergraduates in the College of Chemistry and Chemical Engineering at Xiamen University. In contrast to previously reported synthesis methods (Fukuda, Y. Studies on mixed chelates-II Mixed nickel(II) chelates with "N,N,N',N'"-tetramethylethylenediamine and [beta]-diketones. "J. Inorg. Nucl. Chem." 1972, 34, 2315-2328; Funasako, Y. Thermochromic and solvatochromic Nafion films incorporating cationic metal-chelate complexes. "Chem. Comm" 2013, 49, 4688-4690; Hosokawa, H. Colorimetric Humidity and Solvent Recognition Based on a Cation-Exchange Clay Mineral Incorporating Nickel(II)-Chelate Complexes. "Langmuir" 2015, 31, 13048-13053; Nguyen, T. N. Studies on Mixed Chelates. VII. Mixed Nickel(II) Chelates Containing "N,N'"- or "N,N"-Dialkylethylenediamines and Acetylacetone. "Bull. Chem. Soc. Jpn." 1977, 50 (1), 154-157; Wei, X. J. Vis-Spectrum Investigation of Thermo-Solvatochromic Behaviors of a Mixed Diamine and [beta]-Diketonate Ligand Ni(II) Complex in Different Alcoholic Solutions. "Acta Phys.-Chim. Sin." 2009, 25 (7), 1449-1454; "Inorganic and Analytical Chemistry Experiment Test of The 10th Chinese National Undergraduate Chemistry Laboratory Tournament" https://chemlabs.nju.edu.cn/DFS/file/2019/08/26/20190826132901247mmvyr5.pdf?iid=2382 (accessed November 2023).), which using a large amount of organic solvents, the aqueous and solid phase synthesis methods described here are remarkably green, environmentally friendly, high efficiency and highly reproducible, and the complex [Ni(Me[subscript 3]en)(acac)]BPh[subscript 4] showing a remarkable reversible solvatochromic phenomenon, so this experiment is very suitable as a classroom demonstration for first-year undergraduates in inorganic chemistry or general chemistry. By performing this experiment, students will gain experience in solid phase synthesis, purification, and UV--vis characterization of the complex. In addition, students will gain appreciation of how solvatochromism and thermochromism (in acetone) of the complex [Ni(Me[subscript 3]en)(acac)]BPh[subscript 4] and their mechanisms, and progress in the understanding of the effect of the configuration of a complex on crystal field splitting, and the effect of crystal field splitting on color.
Abstractor: As Provided
Entry Date: 2025
Accession Number: EJ1460219
Database: ERIC
FullText Text:
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  Data: Aqueous and Solid Phase Synthesis of [Ni(Me[subscript 3]en)(acac)]BPh[subscript 4] and Its Solvatochromic Properties: A Laboratory Experiment for First-Year Undergraduates
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  Data: <searchLink fieldCode="AR" term="%22Zhiqiang+Dong%22">Zhiqiang Dong</searchLink> (ORCID <externalLink term="https://orcid.org/0009-0001-3326-1341">0009-0001-3326-1341</externalLink>)<br /><searchLink fieldCode="AR" term="%22Bo+Yi%22">Bo Yi</searchLink><br /><searchLink fieldCode="AR" term="%22Xin+Chen%22">Xin Chen</searchLink><br /><searchLink fieldCode="AR" term="%22Yechao+Chen%22">Yechao Chen</searchLink><br /><searchLink fieldCode="AR" term="%22Ming-Qiang+Qi%22">Ming-Qiang Qi</searchLink><br /><searchLink fieldCode="AR" term="%22Yanping+Ren%22">Yanping Ren</searchLink> (ORCID <externalLink term="https://orcid.org/0009-0009-6122-1580">0009-0009-6122-1580</externalLink>)
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  Data: 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
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  Data: 10.1021/acs.jchemed.3c01273
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  Data: 0021-9584<br />1938-1328
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  Label: Abstract
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  Data: A laboratory experiment that involves the aqueous and solid phase synthesis, characterization, and solvatochromic properties exploration of red complex [Ni(Me[subscript 3]en)(acac)]BPh[subscript 4] has been developed for first-year undergraduates in the College of Chemistry and Chemical Engineering at Xiamen University. In contrast to previously reported synthesis methods (Fukuda, Y. Studies on mixed chelates-II Mixed nickel(II) chelates with "N,N,N',N'"-tetramethylethylenediamine and [beta]-diketones. "J. Inorg. Nucl. Chem." 1972, 34, 2315-2328; Funasako, Y. Thermochromic and solvatochromic Nafion films incorporating cationic metal-chelate complexes. "Chem. Comm" 2013, 49, 4688-4690; Hosokawa, H. Colorimetric Humidity and Solvent Recognition Based on a Cation-Exchange Clay Mineral Incorporating Nickel(II)-Chelate Complexes. "Langmuir" 2015, 31, 13048-13053; Nguyen, T. N. Studies on Mixed Chelates. VII. Mixed Nickel(II) Chelates Containing "N,N'"- or "N,N"-Dialkylethylenediamines and Acetylacetone. "Bull. Chem. Soc. Jpn." 1977, 50 (1), 154-157; Wei, X. J. Vis-Spectrum Investigation of Thermo-Solvatochromic Behaviors of a Mixed Diamine and [beta]-Diketonate Ligand Ni(II) Complex in Different Alcoholic Solutions. "Acta Phys.-Chim. Sin." 2009, 25 (7), 1449-1454; "Inorganic and Analytical Chemistry Experiment Test of The 10th Chinese National Undergraduate Chemistry Laboratory Tournament" https://chemlabs.nju.edu.cn/DFS/file/2019/08/26/20190826132901247mmvyr5.pdf?iid=2382 (accessed November 2023).), which using a large amount of organic solvents, the aqueous and solid phase synthesis methods described here are remarkably green, environmentally friendly, high efficiency and highly reproducible, and the complex [Ni(Me[subscript 3]en)(acac)]BPh[subscript 4] showing a remarkable reversible solvatochromic phenomenon, so this experiment is very suitable as a classroom demonstration for first-year undergraduates in inorganic chemistry or general chemistry. By performing this experiment, students will gain experience in solid phase synthesis, purification, and UV--vis characterization of the complex. In addition, students will gain appreciation of how solvatochromism and thermochromism (in acetone) of the complex [Ni(Me[subscript 3]en)(acac)]BPh[subscript 4] and their mechanisms, and progress in the understanding of the effect of the configuration of a complex on crystal field splitting, and the effect of crystal field splitting on color.
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        Value: 10.1021/acs.jchemed.3c01273
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      – SubjectFull: Science Education
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      – SubjectFull: Science Laboratories
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      – SubjectFull: Science Experiments
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      – TitleFull: Aqueous and Solid Phase Synthesis of [Ni(Me[subscript 3]en)(acac)]BPh[subscript 4] and Its Solvatochromic Properties: A Laboratory Experiment for First-Year Undergraduates
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