A third isolated oxidation state for the family of [Mn12O12(O2CR)16(H2O)4] compounds.: Synthesis, characterization and single-molecule magnetism properties of (PPh4)2[Mn12O12(O2CR)16(H2O)x] (x=3 or 4)

被引：42

作者：

Soler, M

Chandra, SK

Ruiz, D

Huffman, JC

Hendrickson, DN ^{[1
]}

Christou, G

机构：

[1] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA

[2] Univ Calif San Diego, Dept Chem, La Jolla, CA 92093 USA

来源：

POLYHEDRON | 2001年 / 20卷 / 11-14期

关键词：

single-molecule magnets; crystal structures; magnetic characterization;

D O I：

10.1016/S0277-5387(01)00606-4

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis and characterization are reported of the two-electron reduced version of the [Mn12O12(O2CR)(16)(H2O)(4)] family of single-molecule magnets (SMMs). Reduction of the neutral complexes with 2 equiv. of PPh4I gives the (PPh4)(2)[Mn12O12(O2CR)(16)(H2O)(x)] (x = 3 or 4). The crystal structure shows the overall Mn-12 structure is maintained, with a 2Mn(II), 6Mn(III), 4Mn(IV) trapped oxidation state description. Magnetic characterization indicates a S = 10 ground state and retention of SMM behavior. (C) 2001 Elsevier Science Ltd. All rights reserved.

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页码：1279 / 1283

页数：5

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