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Triorganotin(iv) cation-promoted dimethyl carbonate synthesis from COinf2/infand methanol: Solution and solid-state characterization of an unexpected diorganotin(iv)-oxo cluster
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SYSNO ASEP 0489916 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Triorganotin(iv) cation-promoted dimethyl carbonate synthesis from COinf2/infand methanol: Solution and solid-state characterization of an unexpected diorganotin(iv)-oxo cluster Tvůrce(i) Švec, P. (CZ)
Cattey, H. (FR)
Růžičková, Z. (CZ)
Holub, Josef (UACH-T) SAI, RID, ORCID
Růžička, A. (CZ)
Plasseraud, L. (FR)Zdroj.dok. New Journal of Chemistry. - : Royal Society of Chemistry - ISSN 1144-0546
Roč. 42, č. 10 (2018), s. 8253-8260Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova carbon dioxide ; carbonic acid derivative ; cation ; methanol ; methyl group ; organotin compound Vědní obor RIV CA - Anorganická chemie Obor OECD Inorganic and nuclear chemistry CEP GA16-01618S GA ČR - Grantová agentura ČR Institucionální podpora UACH-T - RVO:61388980 UT WOS 000434245500080 EID SCOPUS 85047020582 DOI 10.1039/c7nj05058e Anotace Two novel C,N-chelated organotin(iv) complexes bearing weakly coordinating carborane moieties were prepared by the reaction of the corresponding C,N-chelated organotin(iv) chloride (i.e. L CN R 2 SnCl, R = n-Bu (1) and Ph (2),, L CN = 2-(N,N-dimethylaminomethyl)phenyl)) with monocarba-closo-dodecaborate silver salt (AgCB 11 H 12 , Ag·3). Both products of the metathesis, [L CN (n-Bu) 2 Sn] + [CB 11 H 12 ] (4) and [L CN Ph 2 Sn] + [CB 11 H 12 ] (5), respectively, were characterized by both multinuclear NMR spectroscopy and elemental analysis. The instability of 4 and 5 towards water is discussed. The solid-state structure of L CN (n-Bu) 2 SnOH·B(C 6 F 5 ) 3 (4a) as a model compound with a Sn-O(H)⋯B linkage is also reported. The evaluation of the catalytic activity of 4 and 5 was carried out within the direct synthesis of dimethyl carbonate (DMC) from methanol and CO 2 . While 5 was shown to be definitively inactive, presumably due to cleavage of the Sn-Ph bond, compound 4 exhibits a beneficial action, since it leads to an amount of DMC higher than the stoichiometry (n DMC /n Sn(cat) = 1.5). In addition, the solid state structures of [BnNMe 3 ] + [CB 11 H 12 ] (6) and [(n-Bu) 20 Sn 10 O 2 (OMe) 6 (CO 3 ) 2 ] 2+ ·2[CB 11 H 12 ] (7), isolated as single-crystals and resulting from the recombination of 4 under the reaction conditions (methanol/CO 2 ), were established by sc-XRD analyses within the term of this work as well. 6 and 7 were also fully characterized by IR spectroscopy, multinuclear NMR in solution and elemental analysis. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2019
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