Structural anisotropy of cyanido-bridged {Co9IIW6V} single-molecule magnets induced by bidentate ligands: towards the rational enhancement of an energy barrier

被引：28

作者：

Chorazy, Szymon ^{[1
,2
]}

Rams, Michal ^{[3
]}

Hoczek, Anna ^{[1
]}

Czarnecki, Bernard ^{[1
]}

Sieklucka, Barbara ^{[1
]}

Ohkoshi, Shin-ichi ^{[2
]}

Podgajny, Robert ^{[1
]}

机构：

[1] Jagiellonian Univ, Fac Chem, Ingardena 3, PL-30060 Krakow, Poland

[2] Univ Tokyo, Sch Sci, Dept Chem, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan

[3] Jagiellonian Univ, Inst Phys, Lojasiewicza 11, PL-30348 Krakow, Poland

来源：

CHEMICAL COMMUNICATIONS | 2016年 / 52卷 / 26期

基金：

日本科学技术振兴机构;

关键词：

BUILDING-BLOCK; CLUSTERS; CO; BISTABILITY; RELAXATION; TRANSITION; CHIRALITY; EXCHANGE; BEHAVIOR; NETWORK;

D O I：

10.1039/c5cc10371a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Pentadecanuclear {Co-9(II)[W-V(CN)(8)](6)} clusters were combined with bidentate 2,2'-bipyridine N,N'-dioxide (2,2'-bpdo) ligands resulting in two distinct molecules, {Co9W6(2,2'-bpdo)(7)} (cluster A) and {Co9W6(2,2'-bpdo)(6)} (cluster B), capped by seven and six 2,2'-bpdo ligands, respectively. They crystallize within a single {Co9W6(2,2'-bpdo)(7)}center dot{Co9W6(2,2'-bpdo)(6)}center dot solvent (1) supramolecular network, and reveal single-molecule magnet behaviour with an enhanced energy barrier, a Lambda E/k(B) of 30.0(8) K, which was tentatively ascribed to seven-capped axially deformed cluster A.

引用

页码：4772 / 4775

页数：4

共 2 条

[1] Implementation of Chirality into High-Spin Ferromagnetic Co9IIW6V and Ni9IIW6V Cyanido-Bridged Clusters
Chorazy, Szymon
Reczynski, Mateusz
Podgajny, Robert
Nogas, Wojciech
Buda, Szymon
Rams, Michal
Nitek, Wojciech
Nowicka, Beata
Mlynarski, Jacek
Ohkoshi, Shin-ichi
Sieklucka, Barbara
CRYSTAL GROWTH & DESIGN, 2015, 15 (08) : 3573 - 3581
[2] The solvent effect on the structural and magnetic features of bidentate ligand-capped {Co9II[WV(CN)8]6} single-molecule magnets
Chorazy, Szymon
Hoczek, Anna
Kubicki, Maciej
Tokoro, Hiroko
Ohkoshi, Shin-ichi
Sieklucka, Barbara
Podgajny, Robert
CRYSTENGCOMM, 2016, 18 (09): : 1495 - 1504

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