• Anvadya kumari
• Anil kumar
• Srikant Prasad Yadav
• Rajesh Kumar Bishen
• Dharmendra Kumar Yadav

The coordination chemistry of sulphur containing ligands has recently assumed greater importance in view of the fact that several of these compounds have been found to be biologically active and have found uses in medicine as well as in industry. Some sulphur compounds have been found to be useful as protective agents against hazardous radiations. While spin-magnetic moment is insensitive to environment of metal ions. The spin value for the magnetic moment of chromium (III) complexes is 3.87 BM. The experimentally observed magnetic moment for chromium (III) complex with 5-subtituted tetrazoles have been found to be in the range of 3.87 to 5.33. Magnetic moment for octahedral spin free chromium (III) complexes, but there is slight decrease from their spin only value of 3.87 BM. Effect or in other words it may be because of positive spin- orbit coupling effect which results in electron delocalization . This may also be due to weak Cr-Cr super exchange interaction or it may be due to small magnetic anisotropy resulting from the distortion of octahedral symmetry irrespective of the nature of the bond involved. As the complexes are appreciably soluble in DMF, it may be concluded that the complexes are monomeric and lowering of magnetic moment may be because of spin-orbit magnetic anisotropy. This paper deals with the various experimental data obtained on the investigations of the complexes prepared in this work on the basis of their physico – chemical data.

Chromium(III) complex, Spin Value, nitrogen, sulphur, ligands, thiourea, thisemicarbazide, phenyltetrazoline, magnetic moment, anisotropy

"Cr(III) , Mo(VI) and W(Vl) with some nitrogen and sulphur containing ligands (Thiourea, Thisemicarbazide, 1-phenyltetrazoline)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 2, page no.2090-2095, February-2021, Available :http://www.jetir.org/papers/JETIR2102254.pdf

"Cr(III) , Mo(VI) and W(Vl) with some nitrogen and sulphur containing ligands (Thiourea, Thisemicarbazide, 1-phenyltetrazoline)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 2, page no. pp2090-2095, February-2021, Available at : http://www.jetir.org/papers/JETIR2102254.pdf