Synthesis and characterization of the rare-earth complexes with salicylic acid

2006 ◽  
Vol 60 (2) ◽  
Author(s):  
Y. Xuwu ◽  
S. Wujuan ◽  
K. Congyu ◽  
Z. Li ◽  
Z. Hangguo ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Salicylic Acid ◽  
Rare Earth ◽  
Elemental Analysis ◽  
Ir Spectrum ◽  
Rare Earth Complexes ◽  
Enthalpies Of Formation ◽  
Synthesis And Characterization ◽  
Bomb Calorimeter

AbstractSeven rare-earth complexes with salicylic acid RE(HSal)3·nH2O (HSal = C7H5O3; RE = La-Sm, n = 2; RE = Eu, Gd, n = 1) were synthesized and characterized by elemental analysis, the IR spectrum, and cyclic voltammetry. The constant-volume combustion energies of complexes, Δc U, were determined by a precise rotating-bomb calorimeter at 298.15 K. Their standard molar enthalpies of combustion, Δc H mo, and standard molar enthalpies of formation, Δf H mo, were calculated.

Synthesis and Characterization of Rare Earth Complexes

2007 ◽  
Vol 25 ◽  
pp. 117-121 ◽  
Author(s):  
Yan Changhao ◽  
Guo Chunfang ◽  
Lu Ping ◽  
Zhang Ming ◽  
Qiu Guanming
Keyword(s):  
Rare Earth ◽  
Rare Earth Complexes ◽  
Synthesis And Characterization

scholarly journals Synthesis and Characterization of Chloridobis(dimethylglyoximato)4-(2-ferrocenylvinyl)pyridinecobalt(III): A New Heterobinuclear Cobaloxime

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Sebastián Pizarro ◽  
Guillermo Saá ◽  
Francisco Gajardo ◽  
Alvaro Delgadillo
Keyword(s):  
Cyclic Voltammetry ◽  
Charge Transfer ◽  
Elemental Analysis ◽  
Synthesis And Characterization ◽  
Cyclic Voltammogram ◽  
H Nmr ◽  
Ligand Charge Transfer

The synthesis of a new heterobinuclear cobaloxime with 4-(2-ferrocenylvinyl)pyridine, fcvpy, is reported. The complex [CoCl(dmgH)2(fcvpy)], where dmgH2is dimethylglyoxime and dmgH is dimethylglyoximato, has been characterized by1H-NMR, UV-Vis, cyclic voltammetry, and elemental analysis. The cyclic voltammogram of this complex shows a fc/fc+reversible wave at +0.58 V versus Ag/AgCl, one irreversible wave,Epc= −0.54 V versus Ag/AgCl, assigned to the reduction of Co(III) to Co(II), and two quasireversible processes at −1.02 V and −1.10 V versus Ag/AgCl associated with the reduction of Co(II). The complex showed ferrocene-ligand charge transfer bands at 334 nm and 505 nm. TDDFT/B3LYP/6-31G(d) calculations support this assignation.

Synthesis and Characterization of 3,3′,4,4′-Biphenyl Tetracarboxylic Rare Earth Complexes with Red Fluorescence

2012 ◽  
Vol 33 (8) ◽  
pp. 833-839
Author(s):  
林美娟 LIN Mei-juan ◽  
唐强 TANG Qiang ◽  
王小萍 WANG Xiao-ping ◽  
王文 Wang Wen ◽  
凌启淡 LING Qi-dan
Keyword(s):  
Rare Earth ◽  
Rare Earth Complexes ◽  
Synthesis And Characterization ◽  
Red Fluorescence

Synthesis and characterization of dinuclear rare-earth complexes supported by amine-bridged bis(phenolate) ligands and their catalytic activity for the ring-opening polymerization of l-lactide

2016 ◽  
Vol 45 (26) ◽  
pp. 10807-10820 ◽  
Author(s):  
Yu-Lai Duan ◽  
Jia-Xuan He ◽  
Wei Wang ◽  
Jing-Jing Zhou ◽  
Yong Huang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Rare Earth Complexes ◽  
Synthesis And Characterization ◽  
Phenolate Ligands

Neutral rare-earth complexes [M2(L)2(THF)4] have been synthesized. Their activities toward the ring-opening polymerization of l-lactides will be presented.

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