A ternary complex [Sm(o-NBA)3phen]2 (o-NBA: o-Nitrobenzoate; phen: 1,10-phenanthroline) was synthesized and characterized by elemental analysis, IR, molar conductance, and thermogravimetric analysis. The dissolution enthalpies of SmCl3·6H2O(s), o-HNBA(s) and phen·H2O(s) in mixed solvent (VHCl :VDMF :VDMSO=2:2:1) were determined by calorimetry at 298.15 K. The enthalpy change of the reaction was determined to be rHmΔθ=252.49±1.60 kJ/mol. Using the relevant data in the literature and a thermochemical recycle according to Hess’s Law, the standard molar enthalpy of formation of [Sm(o-NBA)3 phen]2 (s) was estimated to be f mHΔθ=–4109.2±7.3 kJ/mol.
A ternary solid complex of Samarium chloride hexahydrate with m-methoxybenzoic acid and 1,10-phenanthroline,[S...
XIAO Sheng-Xiong~1 LIU Mei-Yan~2 ZHANG Jian-Jun~(*3) LI Xu~1 LIU Yi-Ting~1 XIAO Hua~1 (1 Department of Chemistry and Life Science,Xiangnan University,Chenzhou,Hunan,423000 China) (2 College of Chemistry and Chemical Engineering,Hunan Normal University,Chansha,Hunan 410081 China) (3 Experimental Center,Hebei Normal University,Shijiazhuang,Hebei,050016 China)
The title complexes [Dy(p-NBA)3Phen]2·3H2O(I) and [Dy(m-NBA)3Phen]2·4H2O(Ⅱ) were synthesized, in the two molecular formulas of which NBA is nitrobenzoate and Phen is 1,10-phenanthroline. The characterizations of the complexes were carried out by means of elemental analysis, UV, IR, XRD and molar conductivity. The thermal decomposition of the two complexes were studied under the non-isothermal condition by DSC, TG-DTG and IR methods in detail. The kinetic parameters of the dehydration process were also obtained by the analysis of DSC curves of the two complexes with Popescu and Vyazovkin methods, respectively,
A binuclear samarium(Ⅲ)complex with p-bromobenzoic acid and 2,2′-bipyridine [Sm(p-SrBA)bipy-HO]·HO has been sy...
H.Y.Zhang~(1,2) J.J.Zhang~(1*) S.L.Xu~(1,2) N.Ren~3 L.Tian~(1,2) J.H.Bai~4 (1 Experimental Center,Hebei Normal University,shijiazhuang 050016 P.R.China.) (2 College of Chemistry& Material Science,Hebei Normal University,Shijiazhuang 050016 P.R.China) (3 Department of Chemistry,Handan College,Handan 056005 P.R.China) 4(Department of Compute,Hebei Normal College of Science and Technology,Qinhuangdao,066600 P.R.China)
