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Complexation of Ln(3+) with Pyridine-2,6-dicarboxamide: Formation of the 1:2 Complexes in Solution and Gas Phase
Chen, XT; Xiong, ZX; Gong, Y
2020
Source PublicationINORGANIC CHEMISTRY
ISSN0020-1669
Volume59Issue:19Pages:14486-14492
Subtype期刊论文
AbstractElectrospray ionization of LnCl(3) and tetramethylpyridine-2,6-dicarboxamide (TMPDA) mixtures in methanol generated abundant tripositively charged Ln(TMPDA)2(3+) ions with an unprecedented 1:2 stoichiometry in the gas phase. Different from the very common 1:3 Ln(L) (L = TMGA, tetramethyl glutaramide; TMOGA, tetramethyl-3-oxaglutaramide; TMTDA, tetramethyl-3-thiodiglycolamide) complexes, Ln(3+) is coordinated by four O(c)and two Npyridine atoms from two perpendicular TMPDA ligands based on the DFT calculations. The observation of 1:2 Ln(TMPDA)(2) in the gas phase is due to the desolvation of Ln(TMPDA)(MeOH)(2) that is predominant in the methanol solution of LnCl and TMPDA according to the extended X-ray absorption fine structure analysis, and the 1:3 Ln(TMOGA)3and Ln(TMGA)(3)(3+) complexes observed in the gas phase also parallel the speciation in relevant solutions. Such a difference in solution speciation is most likely a result of the unfavorable steric effect caused by the pyridine ring of TMPDA.
KeywordMOLECULAR-ORBITAL METHODS CHARGED METAL-IONS PHOTOPHYSICAL PROPERTIES LANTHANIDE COMPLEXES MASS-SPECTROMETRY CRYSTAL-STRUCTURE BASIS-SETS COORDINATION EXTRACTION CHEMISTRY
DOI10.1021/acs.inorgchem.0c02285
Indexed BySCI
Language英语
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32754
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Chinese Acad Sci, Shanghai Inst Appl Phys, Dept Radiochem, Shanghai 201800, Peoples R China
2.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, XT,Xiong, ZX,Gong, Y. Complexation of Ln(3+) with Pyridine-2,6-dicarboxamide: Formation of the 1:2 Complexes in Solution and Gas Phase[J]. INORGANIC CHEMISTRY,2020,59(19):14486-14492.
APA Chen, XT,Xiong, ZX,&Gong, Y.(2020).Complexation of Ln(3+) with Pyridine-2,6-dicarboxamide: Formation of the 1:2 Complexes in Solution and Gas Phase.INORGANIC CHEMISTRY,59(19),14486-14492.
MLA Chen, XT,et al."Complexation of Ln(3+) with Pyridine-2,6-dicarboxamide: Formation of the 1:2 Complexes in Solution and Gas Phase".INORGANIC CHEMISTRY 59.19(2020):14486-14492.
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