Spin canting in Re(IV) complexes: magnetic properties of [ReX4(bpym)] ( X = Cl and Br; bpym=2,2'-bipyrimidine)

被引：21

作者：

Martinez-Lillo, Jose ^{[1
]}

Lloret, Francisco ^{[1
]}

Julve, Miguel ^{[1
]}

Faus, Juan ^{[1
]}

机构：

[1] Univ Valencia, Dept Quim Inorgan ICMOL, Valencia, Spain

来源：

JOURNAL OF COORDINATION CHEMISTRY | 2009年 / 62卷 / 01期

关键词：

Re(IV) complexes; Magnetic properties; Spin canting; CRYSTAL-STRUCTURE; SALTS; METAMAGNETISM; RHENIUM; CATIONS; SERIES; LIGAND;

D O I：

10.1080/00958970802474789

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The mononuclear complexes [ReCl4(bpym)] (1) and [ReBr4(bpym)] (2) (bpym = 2,2'-bipyrimidine) are weak ferromagnets. Magnetic ordering occurs below 7.0 (1) and 20.0 K (2) and good hysteresis loops are observed for the two compounds at 2.0 K. A spin-canting phenomenon, i.e., a non-strict linearity of the individual spins aligned in an anti-parallel way by intermolecular antiferromagnetic coupling occurring in many Re(IV) complexes, accounts for these magnetic features which are unusual in molecular solids such as 1 and 2.

引用

页码：92 / 99

页数：8

共 50 条

[31] A novel dinuclear fell spin-crossover complex based on a 2,2-bipyrimidine bridge ligand:: [Fe(CH3bipy)(NCS)2]2bpym
Gaspar, AB
Ksenofontov, V
Martinez, V
Muñoz, MC
Real, JA
Gütlich, P
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2004, (24) : 4770 - 4773
[32] 2,2′-bipyrimidine (bpym) in iron(III) carboxylate chemistry:: preparation and characterization of [Fe2O(O2CMe)2(bpym)2(H2O)2](ClO4)2, and the influence of weak interactions in the formation of metal clusters
Boudalis, AK
Raptopoulou, CP
Terzis, A
Perlepes, SP
POLYHEDRON, 2004, 23 (07) : 1271 - 1277
[33] Magnetic properties of structurally characterized binuclear lanthanide complexes bridged by 2,2′-bipyrimidine
Zucchi, Gael
Le Goff, Xavier F.
POLYHEDRON, 2013, 52 : 1262 - 1267
[34] Ligand substitution in hexahalorhenate(IV) complexes:: Synthesis, crystal structures and magnetic properties of NBu4[ReX5(DMF)] (X = Cl and Br)
Martinez-Lillo, Jose
Armentano, Donatella
De Munno, Giovanni
Lloret, Francesc
Julve, Miguel
Faus, Juan
INORGANICA CHIMICA ACTA, 2006, 359 (10) : 3291 - 3296
[35] Crystal structures and magnetic properties of CuX2(pdmp)2 complexes (X = Br, Cl)
Costa-Filho, AJ
Munte, CE
Barberato, C
Castellano, EE
Mattioli, MPD
Calvo, R
Nascimento, OR
INORGANIC CHEMISTRY, 1999, 38 (20) : 4413 - 4421
[36] Halogen-rich halorhenates(IV): (Me4N)2{[ReX6](X2)} (X = Cl, Br)
Korobeynikov, Nikita A.
Usoltsev, Andrey N.
Sukhikh, Taisiya S.
Novikov, Alexander S.
Korolkov, Ilya, V
Fedin, Vladimir P.
Sokolov, Maxim N.
Adonin, Sergey A.
POLYHEDRON, 2022, 221
[37] Synthesis, structure and magnetic properties of mononuclear [Mn(2,2'-bipyrimidine)(2)(H2O)(2)][ClO4](2) and polynuclear [Mn(2,2'-bipyrimidine)(NO3)(2)] complexes
Hong, DM
Wei, HH
Gan, LL
Lee, GH
Wang, Y
POLYHEDRON, 1996, 15 (14) : 2335 - 2340
[38] Infinite two-dimensional sheet-like array of a 2,2′-bipyrimidine-bis(oxalato)chromate(III) complex:: synthesis, crystal structure and magnetic properties of [K(H2O)Cr(C2O4)2(bpym)]
Bérézovsky, F
Hajem, AA
Triki, S
Pala, JS
Molinié, P
INORGANICA CHIMICA ACTA, 1999, 284 (01) : 8 - 13
[39] Magnetic properties, infrared spectroscopy, thermal and theoretical studies of oxomolybdenum(V) complexes with 2,2′-bipyrimidine
Soria, Delia B.
Barquin, Montserrat
Gonzalez Garmendiaz, Maria J.
Estiu, Guillermina
JOURNAL OF COORDINATION CHEMISTRY, 2008, 61 (23) : 3815 - 3828
[40] Structural characterization and magnetic properties of the first 2,2′-bipyrimidine-containing iron(III) complexes
De Munno, G
Ventura, W
Viau, G
Lloret, F
Faus, J
Julve, M
INORGANIC CHEMISTRY, 1998, 37 (07) : 1458 - 1464

← 1 2 3 4 5 →