Copper(II) complexes of thiazolylazo dye with triphenylphosphine and or NCS⁻ as coligands: synthesis, spectral characterization, electrochemistry and luminescence properties

Mixed ligand complexes of copper(II), cobalt(II), nickel(II) and zinc(II) with thiocyanate and pyrazole based tetradentate ligand: Syntheses, characterizations and structures

“…The axial bond angle N(4)-Zn-N(7) is nearly linear (178.15°). The M-NCS bond length is comparable to other reported M-NCS bond length reported with mononuclear penta coordinate complex with tripodal ligand[20,24,45,46].…”

Synthesis of New Zirconium(IV) Complexes with Amino Acid Schiff Bases: Spectral, Molecular Modeling, and Fluorescence Studies

“…It is evident from the fluorescence spectra that fluorescence emission intensity of Schiff bases decreased dramatically on complex formation with transition metal ions. The decrease in fluorescence intensity with formation of metal complexes is due to decrease in electron density on Schiff bases [34,35]. All these fluorescent emissions may be assigned to the intraligand fluorescence since the free ligand exhibited a similar emission at 430 and 435 nm, respectively, under the same condition.…”

Synthesis, spectral, thermal, fluorescence, antimicrobial, anthelmintic and DNA cleavage studies of mononuclear metal chelates of bi-dentate 2H-chromene-2-one Schiff base

“…Here, ligand exhibits strong fluorescence intensity compared to other three metal complexes. The weak intensity of band corresponding to complexes is due to decrease in electron density on ligand [43,44]. The decreased fluorescence intensity of synthesized metal complexes (1-3) compared with free ligand (HL) is in the order Ni(II) > Co(II) > Cu(II).…”