A novel mixed-valent MnIII–MnIV-dimer, [L2Mn2(µ-O)2(µ-MeCO2)][BPh4]2·MeCN: crystal structure, magnetic properties, and e.s.r. spectrum (L = 1,4,7-triazacyclononane)
A novel mixed-valent MnIII–MnIV-dimer, [L2Mn2(µ-O)2(µ-MeCO2)][BPh4]2·MeCN: crystal structure, magnetic properties, and e.s.r. spectrum (L = 1,4,7-triazacyclononane)
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一种新型混合价 MnIII–MnIV-二聚体，[L2Mn2(μ-O)2(μ-MeCO2)][BPh4]2·MeCN：晶体结构、磁性和 E.S.R 谱（L = 1,4,7-）三氮杂环壬烷）
DOI：
10.1039/c39870000651
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
F. Babonneau
中科院分区：
文献类型：
--
作者：
K. Wieghardt;U. Bossek;L. Zsolnai;G. Huttner;G. Blondin;J. Girerd;F. Babonneau
绿色混价二聚体[L2Mn2（µ-O）2（µ-MeCO2）][BPh4]2·MeCN （L = 1,4,7-三环壬烷）[L2Mn2（µ-O）（µ-MeCO2）2]2+在空气存在的条件下在水中水解生成；x射线晶体学表征表明存在二-µ-乙酰丙酮-二锰（III，IV）核心，温度相关磁化率测量表明S= 1/2基态和非常强的分子内反铁磁耦合（J-440 cm-1）。
The green mixed-valence dimer [L2Mn2(µ-O)2(µ-MeCO2)][BPh4]2·MeCN (L = 1,4,7-triacacyclononane) is formed on hydrolysis of [L2Mn2(µ-O)(µ-MeCO2)2]2+ in water in the presence of air; characterization by X-ray crystallography showed the presence of the di-µ-acetato-dimanganese(III,IV) core, and temperature dependent magnetic susceptibility measurements indicate an S= 1/2 ground state and very strong intramolecular antiferromagnetic coupling (J–440 cm–1).