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dc.contributor.authorChen, Z.
dc.contributor.author陈忠
dc.contributor.authorCai, SH
dc.contributor.author蔡淑惠
dc.contributor.authorYe, JL
dc.contributor.author叶剑良
dc.contributor.authorZhang, LN
dc.contributor.author张琳娜
dc.contributor.authorLu, GT
dc.contributor.author卢葛覃
dc.date.accessioned2012-07-12T01:01:15Z
dc.date.available2012-07-12T01:01:15Z
dc.date.issued1999
dc.identifier.citationCHINESE JOURNAL OF STRUCTURAL CHEMISTRY,1999,18(3):227-231zh_CN
dc.identifier.issn0254-5861
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/13217
dc.description.abstractA series of oxo-centered trinuclear transition-metal complexes with general formula [(M3O)-O-II(OOCR)(6)L-3](+) (M = Cr, Fe, Mn; R = CH3, C2H5, CH2NH2; L = C5H5N, H2O) were studied by H-1 NMR spectra. The investigation was focussed on the change of H-1 chemical shifts with various factors such as metals, ligands, temperatures and solvents. The experimental results show that the main effect on chemical shifts comes from skeleton metals and there is antiferromagnetic exchange interaction among the three metal ions within M3O core, For manganese complexes, the influence mechanisms of paramagnetic centers on chemical shifts and peak widths were discussed. It shows that their H-1 NMR isotropic shifts are mostly contributed by contact interactions.zh_CN
dc.language.isozhzh_CN
dc.publisherCHINESE JOURNAL STRUCTURAL CHEMISTRYzh_CN
dc.subjectoxo-centered complexeszh_CN
dc.subjecttrinuclear complexeszh_CN
dc.subjectNMRzh_CN
dc.subjectchemical shiftszh_CN
dc.subjectmagnetic propertieszh_CN
dc.titleH-1 NMR properties of trinuclear transition-metal complexes [M-3 O-square(OOCR)(6)L-3](+) (M = Cr, Fe, Mn; R = CH3, C2H5,CH2NH2; L = C5H5N, H2O)zh_CN
dc.typeArticlezh_CN


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