NDLI: Pseudo-cyclic Face-to-face Rigid Structure Caused by the Intramolecular Ion Pair Effect

Content Provider	MDPI
Author	Zhang, Sheng-Ling Huang, Zhi-Shu Gu, Lian-Quan
Abstract	Six 3-methylpyridine zwitterions and six quinoline zwitterions were synthesized through the reaction of 4-hydroxycoumarins, p-benzoquinone and the corresponding N-aromatics. The novel pseudo-cyclic face-to-face rigid structure of the zwitterion was elucidated by 1H-NMR at different temperatures, and assumed to be caused by both the intramolecular ion pair attraction and the steric interaction.
File Size	253952
Ending Page	1560
Page Count	15
Starting Page	1546
File Format	PDF
e-ISSN	14203049
DOI	10.3390/molecules14041546
Journal	Molecules
Issue Number	4
Volume Number	14
Language	English
Publisher Date	2009-04-14
Access Restriction	Open
Subject Keyword	4-Hydroxycoumarins Zwitterion Molecular structure
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Pseudo-cyclic Face-to-face Rigid Structure Caused by the Intramolecular Ion Pair Effect