Synthesis, Characterization and Antimicrobial Studies of Copper (II) Complexes of Semicarbazone and Thiosemicarbazone of m- Hydroxy Benzaldehyde and p-Hydroxy Benzaldehyde

Abstract

We have synthesized Cu(II) complexes with m-hydroxy benzaldehyde semicarbazone (L1 =Hm-HBSC), m-hydroxy benzaldehyde thiosemicarbazone (L2= Hm-HBTSC), p-hydroxyl benzaldehyde semicarbazone (L3= Hp-HBSC) and p-hydroxybenzaldehyde thiosemicarbazone (L4= Hp-HBTSC). These complexes were characterized through elemental analysis, molecular weight, electrical conductance and magnetic susceptibilities at room temperature .The observed magnetic moments of all these complexes are consistent with the presence of a single unpaired electron. On the basis of above observations the complexes were proposed to be octahedral structure. These complexes were screened for anti-bacterial and antifungal properties and have exhibited potential activity.

Synthesis, characterization, and antimicrobial activity of 4-imidazolecarboxaldehyde thiosemicarbazone and its Pt(II) and Pd(II) complexes

“…The inoculated plates were incubated at 37 °C for 24 h in the inverted position. The diameters (mm) of the inhibition zones were measured [23].…”

Solvent-Free Microwave Synthesis of Trialkylphosphates

“…Reactional mixtures obtained under microwave irradiations were confirmed by various techniques of analyses 6 . The 31 P NMR has shown the presence of two important signals corresponding to tri [4- (1,1',3,3',-tetramethylbutyl)phenyl] phosphate (TOPPA (δ = -16.10 ppm )) and to di [4- (1,1',3,3',-tetramethylbutyl)phenyl] phosphoric acid (DOPPA (δ = -9.11 ppm )).…”

Elucidation of Cyclic Voltammetric Behaviour of N-Hydroxy-3-Isopropyl-2,6-Difurylpiperidin-4-One Semicarbazone and Thiosemicarbazone and the Antibacterial Study of the Products

“…Bacteria have been sub-cultured on the nutrient agar slants. Different concentration of sample(250µL,500µL,1000µL) has been loaded in to the wells in Muller Hinton Agar plates [15][16][17][18][19] . The plates have been incubated at 37 o C for 24hours.…”

“…There are several reports [6][7][8][9][10][11][12][13] on the reduction of piperidin-4-one semicarbazones and thiosemicarbazones by conventional catalyst. The structure of 4-piperidin[3,4-d]-1,2,3-selenadiazole was proved by the 1 H and 13 C NMR studies [11][12][13][14][15][16] . The N-substituted 3-alkyl-2,6-diarylpiperidin-4-one semicarbazone and thiosemicarbazone have been subjected to electrochemical reduction.…”