Structure and magnetism of a mixed-valence octanuclear manganese(II/III) cluster derived from carbamoylcyanonitrosomethanide (ccnm)

被引：8

作者：

Razali, Mohd. R. ^{[1
,2
]}

Chesman, Anthony S. R. ^{[1
,3
]}

Chilton, Nicholas F. ^{[1
]}

Langley, Stuart K. ^{[1
]}

Moubaraki, Boujemaa ^{[1
]}

Murray, Keith S. ^{[1
]}

Deacon, Glen B. ^{[1
]}

Batten, Stuart R. ^{[1
]}

机构：

[1] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia

[2] Univ Sci Malaysia, Sch Chem Sci, George Town 11800, Malaysia

[3] CSIRO Mat Sci & Engn, Clayton, Vic 3168, Australia

来源：

DALTON TRANSACTIONS | 2013年 / 42卷 / 05期

关键词：

SINGLE-MOLECULE MAGNETS; CRYSTAL-STRUCTURE; NUCLEOPHILIC-ADDITION; CARBOXYLATE CLUSTERS; TETRANUCLEAR; COMPLEXES; CHEMISTRY; MN-8;

D O I：

10.1039/c2dt32303f

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A mixed-valence octanuclear manganese complex of formula [(Mn4Mn4O4)-Mn-II-O-III(ccnm)(12)]center dot 4MeCN center dot 7H(2)O (1 center dot 4MeCN center dot 7H(2)O) (ccnm = carbamoylcyanonitrosomethanide) has been synthesized and characterized by single crystal X-ray diffraction, IR spectroscopy, elemental analysis and magnetic measurements. The metal core of 1 adopts a tetra-capped (with Mn-II ions) distorted [(Mn4O4)-O-III](4+) cubane topology, with a three-J magnetic analysis indicating that the cluster displays dominant antiferromagnetic interactions. Three equally possible fits were obtained, all leading to a spin ground state of S = 0 with S = 1, 2 and 3 close in energy. Comparisons of the magnetic analysis are made with that published for a related Mn-8 cluster and, more generally, with other (MnMnIII)-Mn-III and (MnMnII)-Mn-III fragments in clusters of various types.

引用

页码：1400 / 1405

页数：6

共 50 条

[1] Oxalate-bridged mixed-valence trinuclear manganese(II)-manganese(III)-manganese(II) complexes: Synthesis and magnetism
Sun, XR
Miao, MM
Cheng, P
Liao, DZ
Jiang, ZH
Wang, GL
TRANSITION METAL CHEMISTRY, 1996, 21 (03) : 270 - 272
[2] Electronic and geometric structure of a trinuclear mixed-valence copper(II,II,III) cluster
Root, DE
Henson, MJ
Machonkin, T
Mukherjee, P
Stack, TDP
Solomon, EI
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (20) : 4982 - 4990
[3] Structure and magnetic properties of a mixed-valence heptanuclear manganese cluster
Abbati, GL
Cornia, A
Fabretti, AC
Caneschi, A
Gatteschi, D
INORGANIC CHEMISTRY, 1998, 37 (15) : 3759 - 3766
[4] A mixed-valence uranium(III/IV) bimetallic; Structure, magnetism and reactivity
Roussel, P
Hitchcock, PB
Tinker, N
Scott, P
CHEMICAL COMMUNICATIONS, 1996, (17) : 2053 - 2054
[5] SYNTHESIS AND CHARACTERIZATION OF A NOVEL TETRANUCLEAR MANGANESE(II,III,III,II) MIXED-VALENCE COMPLEX
SUZUKI, M
SUGISAWA, T
SENDA, H
OSHIO, H
UEHARA, A
CHEMISTRY LETTERS, 1989, (06) : 1091 - 1094
[6] Synthesis of octanuclear mixed-valence cobalt(II, III) propionate and butyrate with the Etagere-like core
Fischer, A. I.
Kuznetsov, V. A.
Belyaev, A. N.
RUSSIAN JOURNAL OF GENERAL CHEMISTRY, 2012, 82 (03) : 508 - 509
[7] Assembly of a tetranuclear mixed-valence manganese(II,III) complex from a binuclear manganese(II) complex by photo-irradiation
Tomida, S
Matsushima, H
Koikawa, M
Tokii, T
CHEMISTRY LETTERS, 1999, (05) : 437 - 438
[8] Structural and magnetic studies on a new mixed-valence Cu(I)-Cu(II) octanuclear cluster with a dithiocarbarnate derivative
Kawajiri, Ryo
Okubo, Takashi
Mitani, Tadaoki
POLYHEDRON, 2006, 25 (13) : 2650 - 2654
[9] Synthesis of octanuclear mixed-valence cobalt(II, III) propionate and butyrate with the Étagère-like core
A. I. Fischer
V. A. Kuznetsov
A. N. Belyaev
Russian Journal of General Chemistry, 2012, 82 : 508 - 509
[10] Novel tetranulear cobalt(II)-cobalt(III) mixed-valence complexes with a significant difference in magnetism
Mikuriya, M
Nagao, N
Kundo, K
CHEMISTRY LETTERS, 2000, (05) : 516 - 517

← 1 2 3 4 5 →