Heterometallic MIIRuIII2 Compounds Constructed from trans-[Ru(Salen)(CN)2]- and trans-[Ru(Acac)2(CN)2]-. Synthesis, Structures, Magnetic Properties, and Density Functional Theoretical Study
- 11 August 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 44 (19), 6579-6590
- https://doi.org/10.1021/ic0506456
Abstract
The synthesis, structures, and magnetic properties of four cyano-bridged M(II)Ru(III)2 compounds prepared from the paramagnetic Ru(III) building blocks, trans-[Ru(salen)(CN)2]- 1 [H2salen = N,N'-ethylenebis(salicylideneimine)] and trans-[Ru(acac)2(CN)2]- (Hacac = acetylacetone), are described. Compound 2, {Mn(CH3OH)4[Ru(salen)(CN)2]2}.6CH3OH.2H2O, is a trinuclear complex that exhibits antiferromagnetic coupling between Mn(II) and Ru(III) centers. Compound 3, {Mn(H2O)2[Ru(salen)(CN)2]2.H2O}n, has a 2-D sheetlike structure that exhibits antiferromagnetic coupling between Mn and Ru, leading to ferrimagnetic-like behavior. Compound 4, {Ni(cyclam)[Ru(acac)2(CN)2]2}.2CH3OH.2H2O (cyclam = 1,4,8,11-tetraazacyclotetradecane), is a trinuclear complex that exhibits ferromagnetic coupling. Compound 5, {Co[Ru(acac)2(CN)2]2}n, has a 3-D diamond-like interpenetrating network that exhibits ferromagnetic ordering below 4.6 K. The density functional theory (DFT) method was used to calculate the molecular magnetic orbitals and the magnetic exchange interaction between Ru(III) and M(II) (Mn(II), Ni(II)) ionsKeywords
This publication has 27 references indexed in Scilit:
- [NH4]2Mn3(H2O)4[Mo(CN)7]2·4H2O: Tuning Dimensionality and Ferrimagnetic Ordering Temperature by Cation SubstitutionInorganic Chemistry, 2004
- Mechanism of a Strongly Anisotropic MoIII−CN−MnIISpin−Spin Coupling in Molecular Magnets Based on the [Mo(CN)7]4-Heptacyanometalate: A New Strategy for Single-Molecule Magnets with High Blocking TemperaturesJournal of the American Chemical Society, 2003
- Magnetic Transitions in the Cyano-Bridged Bimetallic Ferromagnet Mn2(H2O)5Mo(CN)7·4.75H2O (β Phase)Inorganic Chemistry, 1999
- Structure, Ferromagnetic Ordering, Anisotropy, and Spin Reorientation for the Two-Dimensional Cyano-Bridged Bimetallic Compound K2Mn3(H2O)6[Mo(CN)7]2·6H2OJournal of the American Chemical Society, 1999
- Ferromagnetic Ordering, Anisotropy, and Spin Reorientation for the Cyano-Bridged Bimetallic Compound Mn2(H2O)5Mo(CN)7·4H2O (α Phase)Journal of the American Chemical Society, 1998
- Magnetic Properties of the Two-Dimensional Bimetallic Compounds (NBu4)[MIIRuIII(ox)3] (NBu4 = Tetra-n-butylammonium; M = Mn, Fe, Cu; ox = Oxalate)Inorganic Chemistry, 1998
- Exchange functionals with improved long-range behavior and adiabatic connection methods without adjustable parameters: The mPW and mPW1PW modelsThe Journal of Chemical Physics, 1998
- Valence contrast by synchrotron resonance scattering: application to a mixed-valence manganese compoundJournal of the American Chemical Society, 1992
- Electronic structure, magnetic properties, ESR, and optical spectra for 2-iron ferredoxin models by LCAO-X.alpha. valence bond theoryJournal of the American Chemical Society, 1984
- Valence bond description of antiferromagnetic coupling in transition metal dimersThe Journal of Chemical Physics, 1981