Zinc and cadmium complexes of a Schiff base ligand derived from diaminomaleonitrile and salicylaldehyde: Syntheses, characterization, photoluminescence properties and DFT study
نویسندگان
چکیده
Diaminomaleonitrile (DAMN, 2,3-diamino-cis-2butenedinitrile) with the formula (H2N)(NC)C=C(CN)(NH2) appears to be symmetric and has been known as an unsaturated electron rich ligand as well as a tetramer of hydrogen cyanide, resulting from the polymerization of HCN under basic conditions 1 . The reaction of DAMN with aromatic aldehydes is very interesting as in every case 1+1 condensed Schiff base is obtained even in presence of excess of aldehyde. 2
منابع مشابه
Synthesis and Characterization of Metal Complexes with New Unsymmetrical Schiff Base Ligand Derived from 2-Aminoethanethiol
A new unsymmetric thioether diamine N - ( 2 - ( 2 - aminophenylthio) ethyl) benzene - 1 , 2 - diamine was prepared through the nucleophilic substitution of cysteaminium chloride with 1 - chloro - 2 - nitrobenzene and then the nitro groups of prepared compuond converted to the amine by zinc powder and ammonium chloride. Then, unsymmetric Schiff bass ligand 2 - ((( 2 - (( 2 - (( 2 - (( 2 - hydrox...
متن کاملSynthesis of New Schiff Base Ligand and Its Complexes in The Presence of Some Transition Metal Ion and Evaluation of Their Antibacterial Properties
ABSTRACT Background and objectives: Synthesis and characterization of several metal complexes (metal ions: Co2+, Ti4+ and Ce3+) of macroacyclic Schiff base ligand have been reported. The Schiff base ligand is prepared from the condensation reaction of 1, 4-di-(4-fluoro-2-aminophenoxy) butane with salicylaldehyde in ethanol. In addition, antibacterial ...
متن کاملTwo new Schiff base complexes; synthesis, characterization, NMR, IR and mass study of a number of [1+1] Cd(II) complexes
In this paper we report the synthesis and characterization of two new binuclear Cd(II) macrocyclic Schiff base complexes [CdL23pydfp(NO3)], (1), and [CdL33pydfp(NO3)], (2). [1+1] cyclocondensation of L23py = N-(2-pyridylmethyl)-N-(3-aminpropyl)-1,3-diaminoethane and L33py = N-(3-pyridylmethyl)-N-(3-aminpropyl)-1,3-diaminopropane and 2,6-diformyl-4-methylphenol, dfp, in the presence of Cd(NO3)2....
متن کاملSynthesis, Characterization and Theoretical Studies of a New Macroacyclic Schiff-Base Ligand Containing Piperazine Moiety and Related Mn(II), Cu(II), Ni(II) and Cd(II) Complexes
Four new [NiH2L](ClO4)2 (1), [CuH2L](ClO4)2 (2), [MnH2L](ClO4)2 (3) and [CdH2L](ClO4)2 (4), complexes were prepared by the reaction of a new Schiff base ligand and Cu(II), Ni(II), Mn (II) and Zn (II) metal ions in equemolar ratios. The ligand, H2L was synthesized by reaction of 1, 4- bis (2- formylphenyl) piperazine and ethanol amine and characterized with IR and 1H,13C NMR spectroscopy. All co...
متن کاملSynthesis, Characterization, and Theoretical Studies of the New Antibacterial Zn(II) Complexes from New Fluorescent Schiff Bases Prepared by imidazo[4',5':3,4]benzo[1,2-c]isoxazole
The novel fluorescentheterocyclic bidentate ligands have been synthesized by the high yields reaction of 8-(4-chlorophenyl)-3-Iso-butyl-3H-imidazo[4',5':3,4]benzo[1,2-c]isoxazol-5-amine with p-hydroxybenzaldehyde and p-chlorobenzaldehyde. The ligands reacted with Zn(II) ion to gained novel complexes. The optical properties of these structures were checked and the outcomes represented that t...
متن کامل