Mononuclear and dinuclear manganese compounds stabilized by supramolecular interactions |
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Authors: | Marta Viciano-Chumillas Mónica Giménez-Marqués Stefania Tanase Ilpo Mutikainen Urho Turpeinen Jan M M Smits René de Gelder L Jos de Jongh Jan Reedijk |
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Affiliation: | Gorlaeus Laboratories, Leiden Institute of Chemistry, Leiden University, PO Box 9502, 2300 RA, Leiden, The Netherlands. reedijk@chem.leidenuniv.nl. |
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Abstract: | ![]() New manganese compounds [Mn(HphpzMe)(2)(H(2)phpzMe)(HCO(2))] (1), [Mn(2)(phpzMe)(2)(HphpzMe)(2)(OCH(3))]·2CH(3)OH (2), Na{[Mn(HphpzPh)(phpzPh)(MeOH)(2)](2)}(HCO(2)) (3), [Mn(HphpzPh)(2)(EtOH)(2)]ClO(4)·2EtOH (4) and [Mn(HphpzPh)(2)N(3)] (5) were synthesized and characterized with various techniques. 1, 4 and 5 are mononuclear manganese(iii) compounds, 2 is a mixed-valence dinuclear manganese(iii/iv) compound, and 3 is a trinuclear compound containing two manganese(iii) ions and a sodium(i) ion. A remarkable feature is the spontaneous formation of the formate ion as a result of the methanol or methoxide oxidation in compounds 1 and 3. Using ethanol precludes the formation of the formate and compound 4 is obtained. The molecular structure of all compounds is stabilized by supramolecular interactions, including strong hydrogen bonding and π-π interactions. |
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