title: Silver(I) supramolecular complexes generated from isophorone-based ligands: crystal structures and enhanced nonlinear optical properties through metal complexation.
abstract: By self-assembly of (E)-2-(3-(4-(1H-imidazol-1-yl)styryl)-5,5-dimethylcyclohex-2-enylidene)malononitrile (L(1)) and (E)-2-(3-(4-(1H-1,2,4-triazol-1-yl)styryl)-5,5-dimethylcyclohex-2-enylidene)malononitrile (L(2)) with silver(I) salts, eight new complexes, namely AgL(1)2ClO4 (1), AgL(1)2NO3 (2), [AgL(1)2NO3]·C6H6 (3), [AgL(1)2OOCCF3]·C6H6 (4), [AgL(1)2PF6]·C6H6 (5), AgL(2)2NO3 (6), [AgL(2)OOCCF3]2 (7) and AgL(2)2PF6 (8), are presented along with an analysis of their structural features. The structures are built up through the combination of coordination bonds, Ag···π, Ag···F (or O), hydrogen bonding, and π···π stacking interactions to generate new supramolecular architectures. We observed the formation of two-dimensional coordination polymers for complex 7. Solvent benzene molecules and anions are dispersed in the supramolecular structure and play a vital role in building the supramolecular structures of the complexes. The nonlinear optical (NLO) properties of the complexes were investigated using the Z-scan technique and complexes 1, 2, 3, 4 and 7 show obviously nonlinear absorption compared with ligands (L(1) and L(2)).
authors.affiliation: College of Chemistry and Chemical Engineering, Anhui University, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, 230601 Hefei, P. R. China. zhpzhp@263.net.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Zheng
authors.forename: Zhi-Peng
authors.initials: ZP
authors.lastname: Yu
authors.forename: Ming-Di
authors.initials: MD
authors.lastname: Yang
authors.forename: Feng
authors.initials: F
authors.lastname: Jin
authors.forename: Li-Na
authors.initials: LN
authors.lastname: Ye
authors.forename: Min
authors.initials: M
authors.lastname: Fang
authors.forename: Hong-Ping
authors.initials: HP
authors.lastname: Zhou
authors.forename: Jie-Ying
authors.initials: JY
authors.lastname: Wu
authors.forename: Yu-Peng
authors.initials: YP
authors.lastname: Tian