[40]π Fused and Nonfused Core-Modified Nonaphyrins: Syntheses and Structural Diversity

dc.contributor.author	Ghosh, A
dc.contributor.author	Srinivasan, A
dc.contributor.author	Suresh, C H
dc.contributor.author	Chandrashekar, T K
dc.date.accessioned	2017-03-09T10:07:16Z
dc.date.available	2017-03-09T10:07:16Z
dc.date.issued	2016-08-01
dc.identifier.citation	Chemistry: A European Journal, 22(32):11152–11155	en_US
dc.identifier.issn	1521-3765
dc.identifier.uri	http://hdl.handle.net/123456789/2704
dc.description.abstract	The synthesis of fused and nonfused core-modified 40π nonaphyrins are reported. Spectroscopic and X-ray structural studies reveal a twisted figure-eight conformation in the freebase form that is nonaromatic. Structural changes occur, from figure-eight to open extended conformation, upon protonation, thereby adopting 4nπ Hückel antiaromatic character, which is reflected in spectroscopic and theoretical studies. Such a structural change also induces ring inversions of specific heterocyclic rings by 180°.	en_US
dc.language.iso	en	en_US
dc.publisher	Wiley	en_US
dc.subject	antiaromaticity	en_US
dc.subject	core modification	en_US
dc.subject	expanded porphyrins	en_US
dc.subject	Hìckel aromaticity	en_US
dc.subject	nonaphyrins	en_US
dc.title	[40]π Fused and Nonfused Core-Modified Nonaphyrins: Syntheses and Structural Diversity	en_US
dc.type	Article	en_US