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Non-template synthesis and electrospray mass spectrometric study of some lanthanide(III) complexes |
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| Authors: | Jian-Jun Zhang Wen Zhang Qin-Hui Luo Yu-Hua Mei |
| Institution: | a State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, Nanjing University, Nanjing 210093, People's Republic of China b State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing 100871, People's Republic of China |
| Abstract: | A new cryptand H3L was synthesized by the direct condensation of tris(2-aminoethyl)amine (tren) with 2,6-diformyl-4-methoxyphenol (dmp) in the absence of a template ion. The complexes M(H3L)(NO3)](NO3)2·xH2O·yMeOH (M=Y, Sm, Nd; x=1–3, y=1,2) were characterized by several physical methods. The behaviours of the ligand and Nd(III) complex were investigated by electrospray mass spectrometry. The Nd(III) cryptate exhibits high thermodynamic and kinetic stability in solution for no cryptate fragmentation peaks were observed. A complex peak formed by the overlap of two species is also observed. The isotopic distributions of peak clusters in the mass spectrum of the Nd(III) cryptate were calculated. |
| Keywords: | Cryptate Lanthanide Electrospray mass spectrometry |
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