Synthesis, X-ray crystal structures and linear and nonlinear optical characterization of a series of nickel(II) and copper(II) salicylaldiminato complexes

Synthesis and third-order optical nonlinearities of nickel complexes of 8-hydroxyquinoline derivatives

“…In this work, a nickel complex of 5-substituted 8-hydroxyquinoline, bis-(5-(acrylamido)methyl-8-hydroxyquinolino) nickel(II) (Ni(AAMQ) 2 ) has been synthesized and its third-order nonlinear optical properties was investigated with respect to that of bis-(8-hydroxyquinolino) nickel(II) (NiQ 2 ) by single beam Z-scan technique with a 7 ns, 1064 nm Nd: YAG laser system. Both NiQ 2 and Ni(AAMQ) 2 possessed strong self-defocusing nonlinearities, comparable to those reported third-order nonlinear optical refraction data [18][19][20][21]. What's more important, with the acrylamidomethyl group substituted at 5-position of the ligand of 8-HQ, Ni(AAMQ) 2 exhibited a highly two-photon absorption as compared with NiQ 2 , due to substitution effect for enhancement of the dipole moment caused by participation of d-donor group of CH 2 in the molecular conjugation.…”

“…The corresponding real parts of molecular second-order hyperpolarizabilities c R were À6.0 Â 10 À46 and À5.5 Â 10 À46 m 5 /W for NiQ 2 and Ni(AAMQ) 2 , respectively. In Table 2 the nonlinear parameters correlated to refraction were summarized and they were comparable to those reported data of other nickel complexes [18][19][20][21].…”

Synthesis of Novel Pyridyl-Based Schiff Base and Its Coordination Behaviour with Ruthenium(II) and Zinc(II)

“…Transition metal complexes with Schiff bases have been of significant interest due to their antibacterial and antifungal activities [3][4][5]. Schiff base complexes can be tailored and designed as materials in many applications such as molecular sensing [6,7], optical switching [8], non-linear optics and photo-initiated processes [9]. Schiff bases are accessible by refluxing primary amines and aldehyde to form the carbinolamine moiety which undergoes a dehydration reaction to form the Schiff base.…”

Two New Schiff Base Ni Ii and Cu Ii Complexes: Synthesis and Structures

“…Selected bond distances and angles are listed in Table 2. 15,16 The distortion of the octahedral geometry can be observed from the coordinate bond angles. The three trans angles in the coordination are 170.6(2), 173.4(2), and 173.4(2)°, and the other angles are ranging from 84.6(2) to 97.8(2)°.…”