ISSN 2348-313X (Print) International Journal of Life Sciences Research ISSN 2348-3148 (online) Vol. 10, Issue 4, pp: (27-34), Month: October - December 2022, Available at: www.researchpublish.com
Characterization and bio-chemical synthesis of Gd3+rare metal Complex with benzoxazole derivative Dr. Haresh R.Patel1, Dr. H. D. Chaudhari2 1
Department of Chemistry, Merchant Science College, Basna, Gujarat, India 2
Department of Chemistry, Adarsh Science College, Patan, India DOI: https://doi.org/10.5281/zenodo.7276919
Published Date: 03-November-2022
Abstract: The grouping of some rare metal ions with an significant 2-(1,3-benzoxazole -2-yl - sulfanyl )-N-phenyl acetamide (BSPA) ligand to form coordination compounds is an important area of present research. Less explored biologically important 2-(1,3-benzoxazole -2-yl - sulfanyl )-N-phenyl acetamide ligand is allowed to react with solution of some rare metal perchlorates and attempt has been made to synthesize solid 2-(1,3-benzoxazole -2-ylsulfanyl )-N-phenyl acetamide complexes. These 2-(1,3-benzoxazole-2-yl-sulfanyl )-N-phenyl acetamide complex are subjected to U.V Visible Spectroscopy, IR Spectroscopy, TGA Analysis, elemental analysis of these complex has been evaluated by standard methods and attempts have been made to correlate structural characteristics with properties of these 2-(1,3-benzoxazole -2-yl - sulfanyl )-N-phenyl acetamide complex. Keywords: Spectroscopic analysis, characterization, 2-(1,3-Benzoxazole-2-yl-sulfanyl)-N-phenyl acetamide(BSPA) complex.
1. INTRODUCTION Thе rare–earth metals are bу definition, thе group IIIb elements Sc, Y, Lа аnd thе 14 lanthanides Ce–Lu. [1,2,3]
2. EXPERIMENTAL A definite volume of 70% acid was diluted with water to obtain 0.2M perchloric acid solution in 500 ml flask. The exact strength was determined by pH metric titration against 0.2M NaOH solution (standardized with 0.2N oxalic acid previously prepared). 75 ml 0.2M perchloric acid was taken and excess solid metal carbonate was added. The solution was stirred for 30 minutes and filtered (this way 0.133 M lanthanide was obtained). The formation of complexes was carried out by mixing 75 ml 0.133 M metal perchlorate solution and 50ml 0.2 M BSPA ligand in DMSO solution. The mole ratio of ligand and metal was (1:1). The reaction mixture was refluxed for 2.5 to 3.0 hours at 95 0C temperature. After 3 hours the reaction mixture was cooled. There was no immediate precipitation. The pH of the above solution was then raised up to 6.5 using 0.1M sodium hydroxide solution which resulted in the precipitation of the semi solid sticky material. Then, this sticky product was dissolved in methanol to remove stickiness. This mixture with methanol was slightly heated for total dissolution and after that cooled. Then after around 30 ml of cold water was added for precipitation of the complex in non sticky form. The complex thus obtained was washed well with double distilled water to remove unreacted metal perchlorate and ligand. All the complexes were dried in oven at 40 oC to 50oC.
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