Superparamagnetic-like properties of the valence-trapped Mn IIMnIII7MnIV4 anion in the salt (PPh4)[Mn12O12(O2CEt) 16(H2O)4]

Hui-Lien Tsai, Hilary J. Eppley, Nadine De Vries, Kirsten Folting, George Christou, David N. Hendrickson

研究成果: Article同行評審

36 引文 斯高帕斯(Scopus)


Reduction of the 8MnIII,4MnIV complex [Mn 12O12(O2CEt)16(H2O) 3] with PPh4l in CH2Cl2 leads to isolation of (PPh4)[Mn12O12(O 2CEt)16(H2O)4] (3) whose crystal structure shows that the added electron is localized on a formerly Mn III ion to give a trapped-valence MnII,7Mn III,4MnIV situation; DC and AC magnetic susceptibility studies show that 3 has an S = 19/2 ground state and that it displays a superparamagnet-like non-zero, frequency-dependent, out-of-phase response in the AC susceptibility behaviour that is extremely unusual for a molecular species and unique for an ionic species.

頁(從 - 到)1745-1746
期刊Journal of the Chemical Society, Chemical Communications
出版狀態Published - 1994 十二月 1

All Science Journal Classification (ASJC) codes

  • Molecular Medicine

指紋 深入研究「Superparamagnetic-like properties of the valence-trapped Mn <sup>II</sup>Mn<sup>III</sup><sub>7</sub>Mn<sup>IV</sup><sub>4</sub> anion in the salt (PPh<sub>4</sub>)[Mn<sub>12</sub>O<sub>12</sub>(O<sub>2</sub>CEt) <sub>16</sub>(H<sub>2</sub>O)<sub>4</sub>]」主題。共同形成了獨特的指紋。