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  Spirocyclic tin salicyl alcoholates – a combined experimental and theoretical study on their structures, 119Sn NMR chemical shifts and reactivity in thermally induced twin polymerization

Kitschke, P., Preda, A.-M., Auer, A. A., Scholz, S., Rüffer, T., Lang, H., et al. (2019). Spirocyclic tin salicyl alcoholates – a combined experimental and theoretical study on their structures, 119Sn NMR chemical shifts and reactivity in thermally induced twin polymerization. Dalton Transactions, 48(1), 220-230. doi:10.1039/C8DT03695K.

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 Creators:
Kitschke, Philipp1, Author
Preda, Ana-Maria1, Author
Auer, Alexander A.2, Author           
Scholz, Sebastian1, Author
Rüffer, Tobias3, Author
Lang, Heinrich3, Author
Mehring, Michael1, Author
Affiliations:
1Technische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Professur Koordinationschemie, 09107 Chemnitz, Germany, ou_persistent22              
2Research Group Auer, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_2541705              
3echnische Universität Chemnitz, Fakultät für Naturwissenschaften, Institut für Chemie, Professur Anorganische Chemie, 09107 Chemnitz, Germany, ou_persistent22              

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 Abstract: The spirocyclic tin salicyl alcoholate, 4H,4′H-2,2′-spirobi[benzo[d][1,3,2]dioxastannine] (1), and its 6,6′-dimethoxy (2) and 8,8′-di-tert-butyl-6,6′-dimethyl derivative (3) were synthesized and thermally induced twin polymerization of precursor 2 was performed to give a SnO2-containing hybrid material. Studies on the molecular structures of 1–3 were carried out using 119Sn{1H} CP MAS NMR spectroscopy and DFT calculations. Crystallization of compound 3 from dimethyl sulfoxide solution provided the Lewis acid–base adduct 3(dmso)2 exhibiting a hexacoordinated tin atom in the solid state, in agreement with the results of the spectroscopic and DFT calculation data. 119Sn NMR spectroscopy of the compounds 1–3 and 3(dmso)2 revealed equilibria among the diverse oligomers in solution phase pointing at hexacoordinated tin atoms.

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Language(s): eng - English
 Dates: 2018-09-122018-11-212018-11-222019-01-07
 Publication Status: Published in print
 Pages: 11
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/C8DT03695K
 Degree: -

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Title: Dalton Transactions
  Abbreviation : Dalton Trans.
Source Genre: Journal
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 48 (1) Sequence Number: - Start / End Page: 220 - 230 Identifier: ISSN: 1477-9226
CoNE: https://pure.mpg.de/cone/journals/resource/954925269323