Synthesis and electrochemical study of complexes of 2-methylthio-5-(pyridylmethylidene)-3,5-dihydro-4 H -imidazol-4-ones with transition metals (Co, Ni, and Cu). Molecular structures of CuIIL1Cl2 (L1 is (5 Z )-2-methylthio-3-phenyl-5-(α-pyridylmethylidene)-3,5-dihydro-4 H -imidazol-4-one) and CoIIL2Cl2 (L2 is (5 Z )-3-methyl-2-methylthio-5-(α-pyridylmethylidene)-3,5-dihydro-4 H -imidazol-4-one)
Identifieur interne : 002F57 ( Main/Exploration ); précédent : 002F56; suivant : 002F58Synthesis and electrochemical study of complexes of 2-methylthio-5-(pyridylmethylidene)-3,5-dihydro-4 H -imidazol-4-ones with transition metals (Co, Ni, and Cu). Molecular structures of CuIIL1Cl2 (L1 is (5 Z )-2-methylthio-3-phenyl-5-(α-pyridylmethylidene)-3,5-dihydro-4 H -imidazol-4-one) and CoIIL2Cl2 (L2 is (5 Z )-3-methyl-2-methylthio-5-(α-pyridylmethylidene)-3,5-dihydro-4 H -imidazol-4-one)
Auteurs : E. K. Beloglazkina [Russie] ; S. Z. Vatsadze [Russie] ; A. G. Majouga [Russie] ; N. A. Frolova [Russie] ; R. B. Romashkina [Russie] ; N. V. Zyk [Russie] ; A. A. Moiseeva [Russie] ; K. P. Butin [Russie]Source :
- Russian Chemical Bulletin [ 1066-5285 ] ; 2005-12-01.
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Abstract
Abstract: New transition metal (NiII, CoII, and CuII) complexes with 2-methylthio-5-(pyridyl-methylidene)-3,5-dihydro-4H-imidazol-4-ones were synthesized by the reaction of 5-(α-, β-, or γ-)pyridyl-substituted 2-methylthio-3,5-dihydro-4H-imidazol-4-ones with MCl2· nH2O. In the complexes with α-Py-substituted ligands, the metal atom has a tetrahedral coordination environment and is coordinated by the nitrogen atoms of the pyridine and thiohydantoin rings and two chloride anions. The results of electronic spectroscopy and magnetic susceptibility measurements suggest that the complexes with the β-and γ-Py-substituted ligands have polymeric structures, and the metal atoms in these complexes are in an octahedral environment. The molecular and crystal structures of CuIIL1Cl2 (L1 is (5Z)-2-methylthio-3-phenyl-5-(α-pyridylmethylidene)-3,5-dihydro-4H-imidazol-4-one) and CoIIL2Cl2 (L2 is (5Z)-3-methyl-2-methylthio-5-(α-pyridylmethylidene)-3,5-dihydro-4H-imidazol-4-one) were established by X-ray diffraction. Semiempirical quantum-chemical calculations were performed for 2-methylthio-5-(pyridylmethylidene)-3,5-dihydro-4H-imidazol-4-ones. The complexes, starting ligands, and metal chlorides were studied electrochemically. The mechanism of electro-oxidation and electroreduction of 2-methylthio-5-(pyridylmethylidene)-3,5-dihydro-4H-imidazol-4-ones and their cobalt, nickel, and copper complexes was proposed.
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DOI: 10.1007/s11172-006-0190-6
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Majouga</name></author><author><name sortKey="Frolova, N A" sort="Frolova, N A" uniqKey="Frolova N" first="N. A." last="Frolova">N. A. Frolova</name></author><author><name sortKey="Romashkina, R B" sort="Romashkina, R B" uniqKey="Romashkina R" first="R. B." last="Romashkina">R. B. Romashkina</name></author><author><name sortKey="Zyk, N V" sort="Zyk, N V" uniqKey="Zyk N" first="N. V." last="Zyk">N. V. Zyk</name></author><author><name sortKey="Moiseeva, A A" sort="Moiseeva, A A" uniqKey="Moiseeva A" first="A. A." last="Moiseeva">A. A. Moiseeva</name></author><author><name sortKey="Butin, K P" sort="Butin, K P" uniqKey="Butin K" first="K. P." last="Butin">K. P. 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Molecular structures of CuIIL1Cl2 (L1 is (5 Z )-2-methylthio-3-phenyl-5-(α-pyridylmethylidene)-3,5-dihydro-4 H -imidazol-4-one) and CoIIL2Cl2 (L2 is (5 Z )-3-methyl-2-methylthio-5-(α-pyridylmethylidene)-3,5-dihydro-4 H -imidazol-4-one)</title><author><name sortKey="Beloglazkina, E K" sort="Beloglazkina, E K" uniqKey="Beloglazkina E" first="E. K." last="Beloglazkina">E. K. Beloglazkina</name><affiliation wicri:level="3"><country xml:lang="fr">Russie</country><wicri:regionArea>Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992, Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation><affiliation></affiliation></author><author><name sortKey="Vatsadze, S Z" sort="Vatsadze, S Z" uniqKey="Vatsadze S" first="S. Z." last="Vatsadze">S. Z. Vatsadze</name><affiliation wicri:level="3"><country xml:lang="fr">Russie</country><wicri:regionArea>Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992, Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author><author><name sortKey="Majouga, A G" sort="Majouga, A G" uniqKey="Majouga A" first="A. G." last="Majouga">A. G. Majouga</name><affiliation wicri:level="3"><country xml:lang="fr">Russie</country><wicri:regionArea>Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992, Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author><author><name sortKey="Frolova, N A" sort="Frolova, N A" uniqKey="Frolova N" first="N. A." last="Frolova">N. A. Frolova</name><affiliation wicri:level="3"><country xml:lang="fr">Russie</country><wicri:regionArea>Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992, Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author><author><name sortKey="Romashkina, R B" sort="Romashkina, R B" uniqKey="Romashkina R" first="R. B." last="Romashkina">R. B. Romashkina</name><affiliation wicri:level="3"><country xml:lang="fr">Russie</country><wicri:regionArea>Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992, Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author><author><name sortKey="Zyk, N V" sort="Zyk, N V" uniqKey="Zyk N" first="N. V." last="Zyk">N. V. Zyk</name><affiliation wicri:level="3"><country xml:lang="fr">Russie</country><wicri:regionArea>Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992, Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author><author><name sortKey="Moiseeva, A A" sort="Moiseeva, A A" uniqKey="Moiseeva A" first="A. A." last="Moiseeva">A. A. Moiseeva</name><affiliation wicri:level="3"><country xml:lang="fr">Russie</country><wicri:regionArea>Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992, Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author><author><name sortKey="Butin, K P" sort="Butin, K P" uniqKey="Butin K" first="K. P." last="Butin">K. P. Butin</name><affiliation wicri:level="3"><country xml:lang="fr">Russie</country><wicri:regionArea>Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992, Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Russian Chemical Bulletin</title><title level="j" type="abbrev">Russ Chem Bull</title><idno type="ISSN">1066-5285</idno><idno type="eISSN">1573-9171</idno><imprint><publisher>Kluwer Academic Publishers-Consultants Bureau</publisher><pubPlace>New York</pubPlace><date type="published" when="2005-12-01">2005-12-01</date><biblScope unit="volume">54</biblScope><biblScope unit="issue">12</biblScope><biblScope unit="page" from="2771">2771</biblScope><biblScope unit="page" to="2782">2782</biblScope></imprint><idno type="ISSN">1066-5285</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1066-5285</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>2-alkylthio-3,5-dihydro-4 H -imidazol-4-ones</term><term>cobalt(II)</term><term>copper(II)</term><term>electrochemistry</term><term>molecular structure</term><term>nickel(II)</term><term>transition metal complexes</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: New transition metal (NiII, CoII, and CuII) complexes with 2-methylthio-5-(pyridyl-methylidene)-3,5-dihydro-4H-imidazol-4-ones were synthesized by the reaction of 5-(α-, β-, or γ-)pyridyl-substituted 2-methylthio-3,5-dihydro-4H-imidazol-4-ones with MCl2· nH2O. In the complexes with α-Py-substituted ligands, the metal atom has a tetrahedral coordination environment and is coordinated by the nitrogen atoms of the pyridine and thiohydantoin rings and two chloride anions. The results of electronic spectroscopy and magnetic susceptibility measurements suggest that the complexes with the β-and γ-Py-substituted ligands have polymeric structures, and the metal atoms in these complexes are in an octahedral environment. The molecular and crystal structures of CuIIL1Cl2 (L1 is (5Z)-2-methylthio-3-phenyl-5-(α-pyridylmethylidene)-3,5-dihydro-4H-imidazol-4-one) and CoIIL2Cl2 (L2 is (5Z)-3-methyl-2-methylthio-5-(α-pyridylmethylidene)-3,5-dihydro-4H-imidazol-4-one) were established by X-ray diffraction. Semiempirical quantum-chemical calculations were performed for 2-methylthio-5-(pyridylmethylidene)-3,5-dihydro-4H-imidazol-4-ones. The complexes, starting ligands, and metal chlorides were studied electrochemically. The mechanism of electro-oxidation and electroreduction of 2-methylthio-5-(pyridylmethylidene)-3,5-dihydro-4H-imidazol-4-ones and their cobalt, nickel, and copper complexes was proposed.</div></front></TEI><affiliations><list><country><li>Russie</li></country><region><li>District fédéral central</li></region><settlement><li>Moscou</li></settlement></list><tree><country name="Russie"><region name="District fédéral central"><name sortKey="Beloglazkina, E K" sort="Beloglazkina, E K" uniqKey="Beloglazkina E" first="E. K." last="Beloglazkina">E. K. Beloglazkina</name></region><name sortKey="Butin, K P" sort="Butin, K P" uniqKey="Butin K" first="K. P." last="Butin">K. P. Butin</name><name sortKey="Frolova, N A" sort="Frolova, N A" uniqKey="Frolova N" first="N. A." last="Frolova">N. A. Frolova</name><name sortKey="Majouga, A G" sort="Majouga, A G" uniqKey="Majouga A" first="A. G." last="Majouga">A. G. Majouga</name><name sortKey="Moiseeva, A A" sort="Moiseeva, A A" uniqKey="Moiseeva A" first="A. A." last="Moiseeva">A. A. Moiseeva</name><name sortKey="Romashkina, R B" sort="Romashkina, R B" uniqKey="Romashkina R" first="R. B." last="Romashkina">R. B. Romashkina</name><name sortKey="Vatsadze, S Z" sort="Vatsadze, S Z" uniqKey="Vatsadze S" first="S. Z." last="Vatsadze">S. Z. Vatsadze</name><name sortKey="Zyk, N V" sort="Zyk, N V" uniqKey="Zyk N" first="N. V." last="Zyk">N. V. Zyk</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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