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Photogeneration of an ADADA H-bonding cleft based on a naphthopyran-decorated triazine

Paper ID Volume ID Publish Year Pages File Format Full-Text
28491 44077 2008 6 PDF Available
Title
Photogeneration of an ADADA H-bonding cleft based on a naphthopyran-decorated triazine
Abstract

Bis-capped DAD H-bonding triazine units have been designed and synthesized, the two masking building blocks being 3,3-diphenyl-3H-naphtho[2,1-b]pyrans. Upon photoirradiation, the ring opening of both photochromic units leads to the formation of a five ADADA H-bonding site molecule. The conversion between the closed, mono-open and bi-open forms has been elucidated using NMR technique which has allowed to assign the corresponding rotamers and isomers, and their relative abundance. No self-aggregation has been observed for the closed form but more importantly also for the photogenerated structures.

Keywords
NMR spectroscopy; Photochromism; Triazine; Naphthopyran; Rotamers
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Photogeneration of an ADADA H-bonding cleft based on a naphthopyran-decorated triazine
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 200, Issue 1, 15 November 2008, Pages 68–73
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us