01580nas a2200193   4500008004100000022001400041245019600055210006900251260000800320300001400328490000700342520081000349100001901159700001601178700002201194700002301216700001701239856013001256       2018                        eng d  a1744-683X00aImpact 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 transition0 aImpact of halfcrowntwo carbonylCa2 metal ion interactions of a l  cJUL  a5821-58310 v143 a<p>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.</p>1 aMaity, Arunava1 aDey, Ananta1 aSi, Mrinal, Kanti1 aGanguly, Bishwajit1 aDas, Amitava  uhttps://library.ncl.res.in/content/impact-half-crowntwo-carbonyl-ca2-metal-ion-interactions-low-molecular-weight-gelator-lmwg