Alkyltin Keggin Clusters Templated by Sodium.

Autor: Saha S; Center for Sustainable Materials Chemistry (CSMC), Oregon State University, USA.; Department of Chemistry, Oregon State University, USA., Park DH; Center for Sustainable Materials Chemistry (CSMC), Oregon State University, USA.; Department of Chemistry, Oregon State University, USA., Hutchison DC; Center for Sustainable Materials Chemistry (CSMC), Oregon State University, USA.; Department of Chemistry, Oregon State University, USA., Olsen MR; Center for Sustainable Materials Chemistry (CSMC), Oregon State University, USA.; Department of Chemistry, Oregon State University, USA., Zakharov LN; Center for Sustainable Materials Chemistry (CSMC), Oregon State University, USA.; Department of Chemistry and Biochemistry, University of Oregon, Eugene, OR, 97403, USA., Marsh D; Department of Chemistry and Biochemistry, University of Oregon, Eugene, OR, 97403, USA.; Current address: Dept. of Chemistry, Alfred University, Alfred, NY, 14802, USA., Goberna-Ferrón S; Center for Sustainable Materials Chemistry (CSMC), Oregon State University, USA.; Current address: ESRF-The European Synchrotron, 380000, Grenoble, France., Frederick RT; Department of Chemical, Biological & Environmental Engineering, Oregon State University, Corvallis, OR, 97331, USA., Diulus JT; Department of Chemical, Biological & Environmental Engineering, Oregon State University, Corvallis, OR, 97331, USA., Kenane N; Center for Sustainable Materials Chemistry (CSMC), Oregon State University, USA.; Department of Chemistry, Oregon State University, USA., Herman GS; Department of Chemical, Biological & Environmental Engineering, Oregon State University, Corvallis, OR, 97331, USA., Johnson DW; Department of Chemistry and Biochemistry, University of Oregon, Eugene, OR, 97403, USA., Keszler DA; Center for Sustainable Materials Chemistry (CSMC), Oregon State University, USA.; Department of Chemistry, Oregon State University, USA., Nyman M; Center for Sustainable Materials Chemistry (CSMC), Oregon State University, USA.; Department of Chemistry, Oregon State University, USA.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2017 Aug 14; Vol. 56 (34), pp. 10140-10144. Date of Electronic Publication: 2017 Jun 14.
DOI: 10.1002/anie.201701703
Abstrakt: Dodecameric (Sn 12 ) and hexameric topologies dominate monoalkyltin-oxo cluster chemistry. Their condensation, triggered by radiation exposure, recently produced unprecedented patterning performance in EUV lithography. A new cluster topology was crystallized from industrial n-BuSnOOH, and additional characterization techniques indicate other clusters are present. Single-crystal X-ray analysis reveals a β-Keggin cluster, which is known but less common than other Keggin isomers in polyoxometalate and polyoxocation chemistry. The structure is formulated [NaO 4 (BuSn) 12 (OH) 3 (O) 9 (OCH 3 ) 12 (Sn(H 2 O) 2 )] (β-NaSn 13 ). SAXS, NMR, and ESI MS differentiate β-NaSn 13 , Sn 12 , and other clusters present in crude "n-BuSnOOH" and highlight the role of Na as a template for alkyltin Keggin clusters. Unlike other alkyltin clusters that are cationic, β-NaSn 13 is neutral. Consequently, it stands as a unique model system, absent of counterions, to study the transformation of clusters to films and nanopatterns.
(© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Databáze: MEDLINE