Impact of half-crown/two carbonyl:-Ca2+ metal ion interactions of a low molecular weight gelator (LMWG) on its fiber to nanosphere morphology transformation with a gel-to-sol phase transition

TitleImpact of half-crown/two carbonyl:-Ca2+ metal ion interactions of a low molecular weight gelator (LMWG) on its fiber to nanosphere morphology transformation with a gel-to-sol phase transition
Publication TypeJournal Article
Year of Publication2018
AuthorsMaity, A, Dey, A, Si, MKanti, Ganguly, B, Das, A
JournalSoft Matter
Volume14
Issue28
Pagination5821-5831
Date PublishedJUL
ISSN1744-683X
Abstract

We report here a smart functional low molecular weight gelator (LMWG) L, containing an unusual metal ion coordination site, i.e. ``half-crown/two carbonyl''. The gelator L shows excellent gelation behavior with typical fibrillar morphology in acetonitrile, methanol and ethanol media. Upon Ca2+ ion binding with its ``half-crown/two carbonyl'' coordination site, the acetonitrile gel of L exhibits a fiber to nanosphere morphology transformation along with a gel-to-sol phase transition as confirmed by microscopic investigation and by direct naked eye visualization, respectively. The mechanism involved in this morphology transformation and gel-to-sol phase transition process was studied thoroughly with the help of computational calculations and various spectroscopic experiments and discussed.

DOI10.1039/c8sm01071d
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)3.889
Divison category: 
Organic Chemistry

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