Synthesis and crystal structures of supramolecular adducts of molybdenum and tungsten selenide aqua complexes with macrocyclic cavitand cucurbituril |
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| Authors: | Gerasko O. A. Virovets A. V. Sokolov M. N. Dybtsev D. N. Gerasimenko A. V. Fenske D. Fedin V. P. |
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| Affiliation: | (1) Siberian Branch of the Russian Academy of Sciences, Institute of Inorganic Chemistry, 3 prosp. Akad. Lavrent"eva, 630090 Novosibirsk, Russian Federation;(2) Institute of Chemistry of the Far-Eastern Division of the Russian Academy of Sciences, 159 prosp. 100-letiya Vladivostoka, 690022 Vladivostok, Russian Federation;(3) Institüt für Anorganishe Chemie, Universität Karlsruhe, 30.45 Engesserstraße Geb., 76128 Karlsruhe, Germany |
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| Abstract: | The supramolecular compounds {[W3Se4Cl3(H2O)6]2[PyH C36H36N24O12]}Cl3·18H2O (1) and {[Cl3SnMo3Se4Cl3(H2O)6][Cl3SnMo3Se4Cl2(H2O)7](C36H36N24O12)}Cl·26H2O (2) were isolated from solutions of the selenium-containing tungsten and molybdenum clusters [W3Se4(H2O)9]4+ and [Cl3SnMo3Se4(H2O)9]3+, respectively, and organic cavitand cucurbituril. X-ray diffraction analysis demonstrated that the macrocylcic cucurbituril molecule is coordinated on both sides by the cluster cations through the formation of complementary hydrogen bonds. Compound 1 has a chain structure stabilized by Se...Se interactions between the adjacent cluster cores. In compound 2, the bridging  2-selenium atoms of the cluster fragment Mo3Se4 are coordinated to the tin atom of the SnCl3– ligand, thus losing the ability to be involved in Se...Se interactions. |
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| Keywords: | cluster compounds molybdenum tungsten cucurbituril supramolecular adduct crystal structure |
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