On the Origin of Magnetic Anisotropy in Cyanide-Bridged Co9M6 (M = Mov or Wv) Systems: A DFT Study

作者: Yi-Quan Zhang , Cheng-Lin Luo

DOI: 10.1021/IC9014527

关键词: Computational chemistryCrystallographyChemistryMetal ions in aqueous solutionMagnetic anisotropyCyanide

摘要: Our calculations show that the substitution of metal ions using CoII is not main reason CoII9M6 (M = MoV or WV) exhibits single-molecule-magnet behavior, whereas unsymmetrical distribution three CH3OH ligands surrounding each one.

参考文章(28)
Eliseo Ruiz, Thomas Cauchy, Joan Cano, Ruben Costa, Javier Tercero, Santiago Alvarez, Magnetic structure of the large-spin Mn10 and Mn19 complexes: a theoretical complement to an experimental milestone. Journal of the American Chemical Society. ,vol. 130, pp. 7420- 7426 ,(2008) , 10.1021/JA800092S
Hiroki Oshio, Motohiro Nakano, High-Spin Molecules with Magnetic Anisotropy toward Single-Molecule Magnets Chemistry: A European Journal. ,vol. 11, pp. 5178- 5185 ,(2005) , 10.1002/CHEM.200401100
John P. Perdew, Kieron Burke, Matthias Ernzerhof, Generalized Gradient Approximation Made Simple Physical Review Letters. ,vol. 77, pp. 3865- 3868 ,(1996) , 10.1103/PHYSREVLETT.77.3865
You Song, Peng Zhang, Xiao-Ming Ren, Xiao-Fei Shen, Yi-Zhi Li, Xiao-Zeng You, Octacyanometallate-Based Single-Molecule Magnets: CoII9MV6 (M = W, Mo) Journal of the American Chemical Society. ,vol. 127, pp. 3708- 3709 ,(2005) , 10.1021/JA042334K
Dongfeng Li, Sean Parkin, Guangbin Wang, Gordon T. Yee, Andrey V. Prosvirin, Stephen M. Holmes, Single-Molecule Magnets Constructed from Cyanometalates: {[Tp*FeIII(CN)3MII(DMF)4]2[OTf]2}·2DMF (MII = Co, Ni) Inorganic Chemistry. ,vol. 44, pp. 4903- 4905 ,(2005) , 10.1021/IC048367I
M. R. Pederson, S. N. Khanna, Magnetic anisotropy barrier for spin tunneling in Mn 12 O 12 molecules Physical Review B. ,vol. 60, pp. 9566- 9572 ,(1999) , 10.1103/PHYSREVB.60.9566
Boris S. Tsukerblat, Andrew V. Palii, Sergei M. Ostrovsky, Sergei V. Kunitsky, Sophia I. Klokishner, Kim R. Dunbar, Control of the Barrier in Cyanide Based Single Molecule Magnets Mn(III)2Mn(II)3: Theoretical Analysis. Journal of Chemical Theory and Computation. ,vol. 1, pp. 668- 673 ,(2005) , 10.1021/CT0500343
Andrei V. Palii, Boris S. Tsukerblat, Eugenio Coronado, Juan M. Clemente-Juan, Juan J. Borrás-Almenar, Orbitally dependent magnetic coupling between cobalt(II) ions: The problem of the magnetic anisotropy The Journal of Chemical Physics. ,vol. 118, pp. 5566- 5581 ,(2003) , 10.1063/1.1555122
Chengteh Lee, Weitao Yang, Robert G. Parr, Development of the Colle-Salvetti correlation-energy formula into a functional of the electron density Physical Review B. ,vol. 37, pp. 785- 789 ,(1988) , 10.1103/PHYSREVB.37.785
Joulia Larionova, Mathias Gross, Melanie Pilkington, Hanspeter Andres, Helen Stoeckli-Evans, Hans U. Güdel, Silvio Decurtins, High-Spin Molecules: A Novel Cyano-Bridged MnMo Molecular Cluster with aS=51/2 Ground State and Ferromagnetic Intercluster Ordering at Low Temperatures Angewandte Chemie International Edition. ,vol. 39, pp. 1605- 1609 ,(2000) , 10.1002/(SICI)1521-3773(20000502)39:9<1605::AID-ANIE1605>3.0.CO;2-5