Synthesis, Magneto-Spectral and Thermal Characteristics of Some 7-Coordinated Compounds of Lanthanides(III) Chlorides with 4[(Furan-2-ylmethylene)amino]-1,5-dimethyl-2-phenyl pyrazol-3-one and Isonicotinic acid(30 ,40 ,50 -trimethoxybenzylidene)hydrazide

Authors : Ram K AGARWAL, Surendra PRASAD Neetu GOEL

Pages : 405-414

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In the present work, we describe the isolation of some lanthanideinsert ignore into journalissuearticles values(III); chlorides coordination compounds with 4[insert ignore into journalissuearticles values(furan-2-ylmethylene);amino]-1,5-dimethyl-2-phenyl pyrazol-3-one insert ignore into journalissuearticles values(FDPPO); and isonicotinic acidinsert ignore into journalissuearticles values(3`,4`,5`-trimethoxybenzylidene);hydrazide insert ignore into journalissuearticles values(ITMBH); with the general composition [Lninsert ignore into journalissuearticles values(L);2Cl3] insert ignore into journalissuearticles values(Ln = La, Pr, Nd, Sm, Gd, Tb, Dy or Ho; L = FDPPO or ITMBH);. All the isolated compounds were characterized through various physico-chemical studies. The coordinating ligands FDPPO or ITMBH act as neutral bidentate N and O-donors in the present compounds. The central metal ion displays the coordination number 7 in these complexes. Thermal stabilities of these complexes were also studied through thermogravimetric analysis.
Keywords : Lanthanide III, complexes, 4 Furan 2 ylmethylene, amino 1, 5 dimethyl 2 phenyl pyrazol 3 one, Isonicotinic acid 3`