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The role of the angle of pretwist of some molecules forming twisted intramolecular charge transfer (TICT) states in polymer matrices

✍ Scribed by Khader A. Al-Hassan; Tohru Azumi; Wolfgang Rettig

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 410 KB
Volume: 206
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)85511-l

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✦ Synopsis

It is shown that the relative intensity of the twisted intramolecular charge transfer band of ester and benzonitrile derivatives of dialkylanibne in non-hydrogen-bonding polymers increases with increasing size of the donor (dialkylamino) group and is sensitive to both the local polarity and local free volume of polymer sites.

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The role of free volume in the twisted intramolecular charge transfer (TICT) emission of dimethylaminobenzonitrile and related compounds in rigid polymer matrices

✍ Khader A. Al-Hassan; Tohru Azumi 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 323 KB

The amount offree volume present in a polymer matrix represents a driving force toward twisted intramolecular charge transfer (TICT) emission of pdimethylaminobenzonitrile (DMABN) and related compounds. The intensity of the TICT band for these compounds in PVC (poly(viny1 chloride), PVA (poly(viny1