title: Synthesis, characterization, optical absorption/fluorescence spectroscopy, and second-order nonlinear optical properties of aggregate molecular architectures of unsymmetrical Schiff-base zinc(II) complexes.
abstract: This paper reports the synthesis and a detailed investigation in solution, through (1)H NMR, optical absorption, fluorescence spectroscopy and second-order nonlinear optical studies, on the structure and photophysical properties of a series of unsymmetrical alkoxy-derivatized Schiff-base Zn(II) species bearing on one side an alkyl ammonium bromide as a Lewis base. Overall results suggest that these complexes are present in solution of dichloromethane as dimeric aggregates in which each molecular unit mutually interacts with another unit through intermolecular Zn···Br(-) interactions. This represents an alternative approach to control the supramolecular architecture of Lewis acidic, Schiff-base Zn(II) complexes.
authors.affiliation: Dipartimento di Scienze Chimiche, Università di Catania, I-95125 Catania, Italy. sdibella@unict.it.
authors.forename: Ivan Pietro
authors.initials: IP
authors.lastname: Oliveri
authors.forename: Salvatore
authors.initials: S
authors.lastname: Failla
authors.forename: Alessia
authors.initials: A
authors.lastname: Colombo
authors.forename: Claudia
authors.initials: C
authors.lastname: Dragonetti
authors.forename: Stefania
authors.initials: S
authors.lastname: Righetto
authors.forename: Santo
authors.initials: S
authors.lastname: Di Bella