Isomeric Structural Characterization of Polyhedral Oligomeric Silsesquioxanes (POSS) with Styryl and Epoxy Phenyl Capping Agents

Ion mobility and molecular modeling methods were used to examine the gas-phase structures of sodiated POSS capped with styryl and epoxy phenyl substituents (Na+Sty x Ep8 - x T8). Results were obtained for x = 5−7 and indicated that three distinct isomers with different collision cross-sections were...

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Veröffentlicht in:	Nano letters 2004-05, Vol.4 (5), p.779-785
Hauptverfasser:	Baker, Erin Shammel, Gidden, Jennifer, Anderson, Stanley E, Haddad, Timothy S, Bowers, Michael T
Format:	Artikel
Sprache:	eng
Schlagworte:	Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials science Nanoscale materials and structures: fabrication and characterization Organic-inorganic hybrid nanostructures Physics
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Beschreibung
Zusammenfassung:	Ion mobility and molecular modeling methods were used to examine the gas-phase structures of sodiated POSS capped with styryl and epoxy phenyl substituents (Na+Sty x Ep8 - x T8). Results were obtained for x = 5−7 and indicated that three distinct isomers with different collision cross-sections were present for each value of x. Theoretical modeling also yielded three different families of structures for each POSS system, and their calculated cross-sections agreed very well with experimental values (
ISSN:	1530-6984 1530-6992
DOI:	10.1021/nl049957g