SPECTROPHOTOMETRIC STUDIES OF SOME TRANSITION ELEMENTS AS COMPLEXES WITH NEW AZODYE 2- (SULFAPYRIDINE AZO)-4,5-DIPHENYL IMIDAZOLE
Journal Title: World Journal of Pharmaceutical Research - Year 2017, Vol 6, Issue 7
Abstract
The yellow (λmax 440nm.) azodye ligand 2-(Sulfapyridine azo )-4,5- Diphenyl Imidazole (L) forms a stable red (λmax 480nm.), orange (λmax 480nm.) and red-violet (μmax 500nm.) color complexes with divalent cations cobalt, nickel and copper respectively, with stoichiometry of all 1:2 ( M:L ). The complexes were characterized by FT-IR, M.P., visible, molar conductivity and atomic absorption spectroscopic. The suitable pH values for forming complexes are 11, 9 and 12 respectively. With molar absorptivity coefficients 4.2, 3.5 and 3.0 104 l.mole-1.cm-1 respectively. And obeyness of Beer‟s law up to 8.1 ppm of Co, 8.1 ppm of Ni and 7.6 ppm of Cu. The optimum conditions of the formation of complexes were investigated and their stability formation constants were determined by using of corresponding solutions method. The chemical formula of their complexes were suggested.
Authors and Affiliations
Dr. Tarek A. Fahad
IMMUNOMODULATORY AND ANTI-INFLAMMATORY ACTIVITIES OF ALGERIAN ULVA LACTUCA
Background: Secondary metabolites such as polysaccharides and lectins from seaweeds were characterized by a broad spectrum of immunomodulatory and anti-inflammatory effect. There are few studies in the literature about t...
PREVALENCE OF DEPRESSION AND ANXIETY AMONG MALE MEDICAL STUDENTS IN MAJMAAH UNIVERSITY, SAUDI ARABIA, 2016
Background: Anxiety and depression are common problems which reflect the mental status of people and have a major effect on medical students. Many Studies reported anxiety and depression among medical students especially...
COMPARISON OF INTRAOPERATIVE BLOOD LOSS DURING SPINAL SURGERY USING EITHER ISOFLURANE, SEVOFLURANE AND COMBINATION PROPOFOL + REMIFENTANIL AS AN ADJUVANT TO GENERAL ANESTHESIA
Background: Decrease of bleeding is of significant importance in keeping the patient’s hemodynamic stabilized, and also in creating a blood-free field with a good vision for the surgeon. The purpose of this study was to...
BIOFILM FORMATION BY Bacteroides fragilis ISOLATED FROM WOMEN WITH BACTERIAL VAGINOSIS
Many novel, fastidious and uncultivated bacterial species are related with Bacterial vaginosis that is one of the most common genital infections among women in the childbearing age. These are called bacterial vaginosis a...
KNOWLEDGE ATTITUDE AND PERCEPTION OF DIABETES MELLITUS AMONG STUDENTS OF UNIVERSITY OF PORT HARCOURT, RIVERS STATE, SOUTH–SOUTH ZONE NIGERIA
Diabetes mellitus (DM) is a chronic, progressive systemic disease characterized by dysfunction in the metabolism of fats, carbohydrates, and protein resulting from absolute or relative insulin deficiency. Symptoms of dia...