Solvent dependent chirality transformation: Construction of a helical homochiral silver(I) MOF using the V shaped ligand 3 Aminobenzoate
Abstract Less attention has been paid to the solvent dependent chirality transformation behavior of coordination compounds when using achiral precursors. We have successfully prepared one known helical achiral compound a [AgL] n n H 2 O, 1 using water or DMSO as a solvent, one new helical homochiral MOF b [AgL] n n H 2 O, 2 using DMF, dimethyl acetamide or ethanol as a solvent, and one new non helical achiral compound [Ag 2 L(NO 3 n 3 using n propyl alchohol or cyclohexanol as a solvent, with the V shaped achiral ligand 3 aminobenzoic acid (HL) as a ligand. Achiral 1 can be converted from chiral isomeric 2 through recrystallization in water. Such successive chirality transformation (achirality chirality achirality) behavior is probably proportional the polarity of the used solvent: cyclohexanol 3 n propyl alchohol 3 2 2 2 1 1 A preliminary study revealed that the isomeric compounds 1 and 2 displayed significantly different photoluminescence.