Synthesis, structure and magnetic characterization of [Fe(bpp)2][Cu(pds)2]2•solv (solv = CH3CN and CH3OH)

被引:8
作者
Coronado, Eugenio [1 ]
Dias, Joao C. [1 ]
Gimenez-Lopez, M. Carmen [1 ]
Gimenez-Saiz, Carlos [1 ]
Gomez-Garcia, Carlos J. [1 ]
机构
[1] Univ Valencia, ICMol, Poligono Coma S-N, E-46980 Paterna, Spain
关键词
Magnetic properties; Spin crossover; Fe(II) complexes; Switchable molecular materials; Diselenolates; Molecular conductors;
D O I
10.1016/j.molstruc.2008.04.046
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A novel salt of the Fe(II) cation [Fe(bpp)(2)](2+) ( bpp = 2,6-bis(pyrazol-3-yl)pyridine) with the [Cu-III(pds)(2)](-) anion (pds = pirazine-2,3-diselenolate) formulated as [Fe(bpp)(2)][Cu(pds)(2)](2) center dot 3CH(3)CN has been prepared and characterized by single crystal X-ray diffraction and magnetic measurements. The salt presents a layered structure where cations and anions alternate along the b direction with many intermolecular short contacts between the cations and anions. The magnetic properties show that the Fe(II) cations [Fe(bpP)(2)](2+) present a high-spin S = 2 ground spin state with g = 2.073(1) and a zero field splitting (ZFS) of 7.7(1) cm(-1) but no the expected spin transition at low temperatures. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:215 / 220
页数:6
相关论文
共 27 条
[1]   SIR97:: a new tool for crystal structure determination and refinement [J].
Altomare, A ;
Burla, MC ;
Camalli, M ;
Cascarano, GL ;
Giacovazzo, C ;
Guagliardi, A ;
Moliterni, AGG ;
Polidori, G ;
Spagna, R .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1999, 32 :115-119
[2]  
[Anonymous], 1999, J. Appl. Crystallogr, DOI [DOI 10.1107/S0021889899006020, 10.1107/S0021889899006020]
[3]   Outlier treatment in data merging [J].
Blessing, RH .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1997, 30 :421-426
[4]   NON-FIRST-ORDER KINETICS OF THE HIGH SPIN-LOW SPIN RELAXATION IN [FE(BPP)(2)](BF4)(2) AFTER LIESST AND THERMAL SPIN-TRAPPING [J].
BUCHEN, T ;
GUTLICH, P ;
GOODWIN, HA .
INORGANIC CHEMISTRY, 1994, 33 (20) :4573-4576
[5]   Hybrid molecular conductors [J].
Coronado, E ;
Galán-Mascarós, JR .
JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (01) :66-74
[6]   Synthesis, structure and magnetic properties of iron (II), cobalt (II) and nickel (II) complexes of 2,6-bis(pyrazol-3-yl)pyridine and paramagnetic counterions [J].
Coronado, E ;
Giménez-López, MC ;
Gimenez-Saiz, C ;
Martínez-Agudo, JM ;
Romero, FM .
POLYHEDRON, 2003, 22 (14-17) :2375-2380
[7]   Synthesis and characterization of [Fe(III)(qsal)2][M(III)(pds)2] (M = Cu, Au) [J].
Dias, J. C. ;
Soriano-Portillo, A. ;
Clemente-Leon, M. ;
Gimenez-Saiz, C. ;
Galan-Mascaros, J. R. ;
Gomez-Garcia, C. J. ;
Coronado, E. .
INORGANICA CHIMICA ACTA, 2007, 360 (13) :3843-3847
[8]   Multistability in a family of DT-TTF organic radical based compounds (DT-TTF)4[M(L)2]3 (M = Au, Cu; L = pds, pdt, bdt) [J].
Dias, JC ;
Ribas, X ;
Morgado, J ;
Seiça, J ;
Lopes, EB ;
Santos, IC ;
Henriques, RT ;
Almeida, M ;
Wurst, K ;
Foury-Leylekian, P ;
Canadell, E ;
Vidal-Gancedo, J ;
Veciana, J ;
Rovira, C .
JOURNAL OF MATERIALS CHEMISTRY, 2005, 15 (31) :3187-3199
[9]   [Fe(sal2-trien)][Ni(dmit)2]:: towards switchable spin crossover molecular conductors [J].
Dorbes, S ;
Valade, L ;
Real, JA ;
Faulmann, C .
CHEMICAL COMMUNICATIONS, 2005, (01) :69-71
[10]   Towards molecular conductors with a spin-crossover phenomenon:: Crystal structures, magnetic properties and Mossbauer spectra of [Fe(salten)Mepepy][M(dmit)2] complexes [J].
Faulmann, C ;
Dorbes, S ;
de Bonneval, WG ;
Molnár, G ;
Bousseksou, A ;
Gomez-Garcia, CJ ;
Coronado, E ;
Valade, L .
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2005, (16) :3261-3270