Magnetic and spectral studies on N-(thiophene-2-carboxamido)salicylaldimine complexes of some bivalent 3d metal ions

Synthesis, Structural, and Antimicrobial Studies of Some New Coordination Compounds of Palladium(II) with Azomethines Derived from Amino Acids

“…It is known that the existence of metal ions bonded to biological active material can enhance their activity [6]. Amino acids and their compounds with different metal ions play an important role in biology, pharmacy, and industry [7][8][9][10][11][12]. It has been reported that metal complexes of amino acid Schiff bases with transition metals possess anticarcinogenic [13], antimicrobial [14], and antitumor [15] activity.…”

Effects of the substituents of pyrazole/thiazine ligands on nuclearity of Cu(II) nitrate complexes

“…There is a shift to lower frequencies for the bands assigned to thiazine ring vibrations, whereas bands attributable to pyrazole ring vibrations suffer a shift in the opposite direction. These facts confirm coordination through the pyrazole and thiazine nitrogen atoms [28][29][30]. Coordination modes of nitrate can be determined using the method proposed by Lever et al [31], which is based on the pattern of the splitting of the ( 1 þ 4 ) combination bands.…”

Synthesis, structural characterization and influence on the phagocytic activity of human neutrophils of thiazoline and thiazine derivative ligands and their zinc(II) complexes

“…In a similar form, only three such bands are observed for 2. Of these, the band at 337 cm À1 can include the m(Zn-N imino ) vibration [47][48][49][50] and one m(Zn-Cl) vibration [51,52], whereas the band at 310 cm À1 is assigned to the other m(Zn-Cl) vibration [51,52]. Finally, the band at 232 cm À1 is tentatively assigned to m(Zn-N thiazine ), in good accordance with the value found for this vibration mode in the complex [ZnCl 2 (TdTz)] [TdTz = 2-(3,4-dichlorophenyl)imino-N-(2-thiazin-2-yl)thiazolidine] [54].…”