Abstract
CHARACTERIZATION AND SPECTRAL ANALYSIS OF NICKEL(II), COBALT(II) AND COPPER(II) COMPLEX WITH LEWIS BASES

Birendra Kumar, Praveen Kumar Singh*, Rekha Rani, Dayanand Prasad, Sunny Kumar and Shivadhar Sharma

ABSTRACT

Co(II), Ni(II) and Cu(II) complexes of dihydrobis(1-pyrazolyl)borate and their adducts with some Lewis bases have been prepared and characterized by elemental analyses, IR and UV–vis spectroscopic techniques. The adducts were either 1:1 or 1:2 complexes depending on whether the Lewis base was bidentate or monodentate. The results indicate that adducts with 1,10-phenanthroline were the most stable due to the chelating effect of the Lewis base. The order of reactivity of the complexes was determined to be Ni(H2BPz2)2 > Cu(H2BPz2)2 > CoH2(BPz2)2 > Co(H2BPz2)2. The effects of various solvents (i.e., benzene, chloroform and DMF) on the structure were studied. The solvents appear to minimally affect the visible spectra of Co(H2BPz2)2. The Ni(H2BPz2)2 and Cu(H2BPz2)2 adducts exhibit a four-coordinate structure in non-coordinating solvents. However, in coordinating solvents, such as DMF, the adducts exhibit six-coordinate structures.

Keywords: Transition metal Complex, Scorpionate, Lewis bases, Spectroscopic analysis.


[Full Text Article]

Login





Forgot Password  |  Register

Indexing

Best Paper Awards

European Journal of Biomedical and Pharmaceutical Sciences (EJBPS) will give best paper award in every issue in the form of money along with certificate to promote research activity of scholar.

Best Article of current issue :

Tangudu Nagabhusana Rao

Download Article : Click here

News & Updation

  • EJBPS: JULY ISSUE PUBLISHED

    JULY 2021 Issue has been successfully launched on 1 July 2021

  • EJBPS New Impact Factor

    Its our Pleasure to Inform you that EJBPS Impact Factor has been increased from 5.467 to 6.044, due to high quality Publication at International Level.

  • Index Copernicus Value

    EJBPS Received Index Copernicus Value 77.3, due to High Quality Publication in EJBPS at International Level

  • Journal web site support Internet Explorer, Google Chrome, Mozilla Firefox, Opera, Saffari for easy download of article without any trouble.

    .

  • Article Invited for Publication

    Dear Researcher, Article Invited for Publication  in EJBPS coming Issue.

     

UG/PG/Ph.D Research Publication

Research Scholar of UG/PG/Ph.D can Submit their Research Article/Review Article/Case Study/Short Communication for Publication in EJBPS

Downloads

Copyright From

Covering Letter

                        Author Instruction 
 

PLAGERLUM REPORT