J.-P. Costes

Publications (9)5.89 Total impact

• Article: A new end-on azido bridged Mn(III) single-chain magnet and its dimeric single molecule magnet polymorph. Synthesis, structure and magnetic properties of [Mn(5-Clsalpn)N3]n and phenoxo bridged [Mn(5-Clsalpn)N3]2.

  G Bhargavi, M V Rajasekharan, J-P Costes, J-P Tuchagues
  [show abstract] [hide abstract]
  ABSTRACT: An end-on azido bridged Mn(III) coordination chain polymer [Mn(5-Clsalpn)N3]n (complex ) and its dimeric polymorph, [Mn(5-Clsalpn)N3]2 (complex ), where 5-Clsalpn is N,N'-bis(5-chlorosalicylidene)-1,3-diaminopropane, were prepared. Complex , which is obtained as two concomitant polymorphs ( and ) with nearly identical molecular structures but different crystal packing, has μ-1,1(end-on) azido bridges. This single atom bridge is unsymmetrical and leads to a -1 cm(-1) antiferromagnetic interaction among Mn(III) centers of the one-dimensional coordination polymer. Mn(III) anisotropy is manifested through Jahn-Teller elongation along the N(azido)-Mn-N(azido) axis, and results in single-chain magnet behavior. The phenoxo-bridged dimer (complex ) has terminal azido ligands and a ferromagnetic interaction is mediated by the unsymmetrical bis-phenoxo bridge. Mn(III) anisotropy is manifested through Jahn-Teller elongation along an N-Mn-O axis, and results in single molecule magnet behavior. The dimers are organized into a two-dimensional network structure via ClCl and ClH-phenyl interactions which are also ferromagnetic.
  Dalton Transactions 04/2013; · 3.84 Impact Factor
• Article: Di- or Trinuclear 3d-4f Schiff Base Complexes: The role of Anions

  J.P. Costes, B. Donnadieu, R. Gheorghe, G. Novitchi, J.P. Tuchagues, L. Vendier
  Eur. J. Inorg. Chem. 11/2008; 2008:5235.
• Article: Making 3d-4f hexanuclear clusters from heterotrinuclear cationic building blocks

  R Gheorghe, M. Andruh, J.-P. Costes, B. Donnadieu, M. Schmidtmann, A. Müller
  Inorganica Chimica Acta. 11/2007; 360:4044.
• Article: An original 1D Cu-Co heterometallic compound: Synthesis, Structure and Magnetic properties

  J.-P. Costes, R. Gheorghe, M. Andruh, S. Shova, J.-M. Clemente Juan
  New Journal of Chemistry. 04/2006; 30:572.
• Article: Oligonuclear 3d-4f Complexes as Tectons in Designing Supramolecular Solid-State Architectures. Impact of the Nature of Linkers on the Structural Diversity

  R. Gheorghe, P. Cucos, M. Andruh, J.-P. Costes, B. Donnadieu, S. Shova
  Chemistry - A European Journal. 12/2005; 12:187.
• Article: New binuclear model compounds for the study of the 4f-4f exchange interaction

  R. Gheorghe, V. Kravtsov, Y.A. Simonov, J.–P. Costes, Y. Journaux, M. Andruh
  Inorganica Chimica Acta. 03/2004; 357:1613.
• Article: A rational synthetic route leading to 3d – 3d’ – 4f heterospin systems: self-assembly processes involving heterobinuclear 3d – 4f complexes and hexacyanometallates

  R. Gheorghe, M. Andruh, J.-P. Costes, B. Donnadieu
  Chemical Communications. 01/2003;
• Article: Synthesis and X-ray structure of [VCl3((-)-sparteine)] and [FeCl2((-)-sparteine)]

  C. Lorber, R. Choukroun, B. Donnadieu, J-P. Costes
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  ABSTRACT: Special Issue in the Memory of Late Prof. John A. Osborn.
  C. R. Chimie. 01/2002; 5.
• Article: Synthesis, crystal structure and magnetic properties of dimeric MnIII Schiff base complexes including pseudohalide ligands: Ferromagnetic interactions through phenoxo bridges and single molecule magnetism

  G. Bhargavi, M.V. Rajasekharan, J.-P. Costes, J.-P. Tuchagues
  Polyhedron 28(7):1253-1260. · 2.06 Impact Factor