TITLE:
Synthesis, Spectral Characterization and Biological Evaluation of Chromium(III) Complexes of Schiff Base
AUTHORS:
Sulekh Chandra, Poonam Pipil
KEYWORDS:
Mass, IR, Magnetic Moment, Electronic, EPR & Biological Activity
JOURNAL NAME:
Open Journal of Inorganic Chemistry,
Vol.4 No.2,
April
24,
2014
ABSTRACT: Complexes of chromium(III) metal ion with schiff base i.e. 2,3,9,10 tetraphenyl-1,4,8,11-tetra-
azacyclotetradeca-1,3,8,10 tetraene. (BPD) 2,4,10,12-tetramethyl-1,5,9,13-tetraazacyclohexadeca- 1,4,9,12 tetraene. (ADP) 2,3,9,10 tetramethyl 1,4,8,11 tatraazatetredeca-1,3,8,10
tetraene (DDP) have been synthesized and characterized by elemental analysis,
molar conductance, magnetic susceptibility measurements, electronic and epr
spectral studies. On the basis of elemental analysis the complexes were found
to have composition CrLX3 (X = Cl-, , NCS-), Molar conductance, measured in DMF solution
of these complexes indicates that the complexes are 1:1 electrolytes in nature,
therefore the complexes may be formulated as [CrLX2]X. These
complexes show magnetic moment in the range of 3.80 - 3.84 B.M. corresponding
to three unpaired electrons. EPR and electronic spectral studies reveal that
the complexes possess six-coordinated octahedral geometry. The ligand field
parameters were calculated using various energy level diagrams. In vitro synthesized compounds and metal
salts have also been tested against some species of plant pathogenic fungi and
bacteria in order to assess their antimicrobial properties.