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Excited states of the polyacetylenes. Analysis of the near ultraviolet spectra of diacetylene and triacetylene

โœ Scribed by H.-J. Haink; M. Jungen

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
378 KB
Volume
61
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

A system of tridcetylene have been invest&ted.. An&sis of the vrbmtional structure imiiutes that we observe transitions to it tPu upper eIectronic stnte for both molecules and tmnsitions to a ' X; state for diacetylene-1. Introduction

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Transient absorption spectra of the exci
Transient absorption spectra of the excited states of triptycene and 3-acetyltriptycene
โœ Tadashi Sugawara; Hiizu Iwamura; Nobuaki Nakashima; Keitaro Yoshihara; Hisaharu ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 344 KB

The S,l + S, absorption (Ama is 650 nm, E > 7 X lo3 hi-' cm-') of triptycene and the Tn +T, absorptions ($na.. is 370 and 550 nm) of 3-acetyltriptycene have been determined by nanosecond hser spectroscopy\_ A small contribution of charge-transfer character and subsequent reactivity in the excited st