0000000000074377
AUTHOR
Cyrille Train
showing 14 related works from this author
The odd association of a C3h trisamidinium cation and tosylate anion with a series of linear oxalate-bridged trinuclear heterometallic complexes
2013
A series of six isostructural heterometallic trinuclear oxalate-bridged complexes of the formula (TDbenz)(2)(TsO)(2)[M(II)(H(2)O)(2){(μ-ox)M(III)(ox)(2)}(2)]·6H(2)O·2CH(3)OH (TDbenz = 1,3,5-tris[2-(1,3-diazolinium)]benzene; TsO = 4-methylbenzenesulfonate; ox = oxalate; M(III) = Fe, M(II) = Mn (1), Fe (2), Co (3); M(III) = Cr, M(II) = Mn (4), Fe (5), Co (6)) have been synthesized from (NH(4))(3)[M(III)(ox)(3)]·3H(2)O, the chloride salts of the divalent metal ions and the tosylate salt of 1,3,5-tris[2-(1,3-diazolinium)]benzene (trisamidinium). Whereas the crystal structures of compounds 2, 3, 4 and 5 have been investigated by single-crystal X-ray diffraction, the structures of 1 and 6 have be…
Multiferroics by Rational Design: Implementing Ferroelectricity in Molecule-Based Magnets
2012
Multiferroics (MF) are materials that exhibit simultaneouslyseveral ferroic order parameters. Among the multiferroicmaterials, those combining antiferro- or ferroelectricity (FE)and antiferro-, ferri-, or ferromagnetism (FM) within thesame material are highly desirable: the coexistence of thepolar and magnetic orders paves the way towards four-levelmemories while their interactions through the magnetoelec-tric effect makes it possible to control the magnetization byelectric fields and hence to develop electronically tuneablemagnetic devices, which are an essential feature for spin-tronics.
Synthesis, crystal structure and magnetic properties of two oxalato-bridged dimetallic trinuclear complexes combined with a polar cation
2010
Two isostructural heterometallic trinuclear oxalato-bridged complexes of formula C(4)[MCr(2)(ox)(6)(H(2)O)(2)]·nH(2)O (C(+) = 4-aminopyridinium; ox(2-) = oxalate dianion; M(2+) = Mn(2+), n = 3, 1; M(2+) = Co(2+), n = 3.25, 2) have been synthesized by using direct self-assembly methods combining C(3)[Cr(ox)(3)] and the chloride salts of the corresponding metal ion. The crystal structures of both compounds have been resolved by single-crystal X-ray diffraction. They crystallize in the C2/c space group [a = 11.5113(15) Å, b = 20.250(3) Å, c = 21.810(4) Å, beta = 100.447(10) degrees, V = 5161.6(3) Å(3), and Z = 4 for 1, and a = 11.4334(16) Å, b = 20.243(2) Å, c = 21.805(3) Å, beta = 101.113(9) …
Single chain magnet behaviour in an enantiopure chiral cobalt(II)–copper(II) one-dimensional compound
2010
The self-assembly of an enantiomerically pure, chiral dianionic oxamatocopper(II) complex with cobalt(II) ions leads to neutral oxamato-bridged heterobimetallic chains that combine chirality and slow magnetic relaxation, providing thus the first example of ‘‘chiral single chain magnets (CSCMs). Ruiz Garcia, Rafael, Rafael.Ruiz@uv.es ; Lloret Pastor, Francisco, Francisco.Lloret@uv.es
High proton conduction in a chiral ferromagnetic metal-organic quartz-like framework.
2011
A complex-as-ligand strategy to get a multifunctional molecular material led to a metal-organic framework with the formula (NH(4))(4)[MnCr(2)(ox)(6)]·4H(2)O. Single-crystal X-ray diffraction revealed that the anionic bimetallic coordination network adopts a chiral three-dimensional quartz-like architecture. It hosts ammonium cations and water molecules in functionalized channels. In addition to ferromagnetic ordering below T(C) = 3.0 K related to the host network, the material exhibits a very high proton conductivity of 1.1 × 10(-3) S cm(-1) at room temperature due to the guest molecules.
Solvent-Dependent Self-Assembly of an Oxalato-Based Three-Dimensional Magnet Exhibiting a Novel Architecture.
2016
The old but evergreen family of bimetallic oxalates still offers innovative and interesting results. When (Me4N)3[Cr(ox)3]·3H2O is reacted with Mn(II) ions in a nonaqueous solvent, a novel three-dimensional magnet of the formula [N(CH3)4]6[Mn3Cr4(ox)12]·6CH3OH is obtained instead of the one-dimensional compound obtained in water. This new material exhibits an unprecedented stoichiometry with a binodal (3,4) net topology and the highest critical temperature (TC = 7 K) observed so far in a manganese-chromium oxalate based magnet.
Postsynthetic Approach for the Rational Design of Chiral Ferroelectric Metal–Organic Frameworks
2017
International audience; Ferroelectrics (FEs) are materials of paramount importance with a wide diversity of applications. Herein, we propose a postsynthetic methodology for the smart implementation of ferroelectricity in chiral metal−organic frameworks (MOFs): following a single-crystal to single-crystal cation metathesis, the Ca2+ counterions of a preformed chiral MOF of formula Ca6II{CuII24[(S,S)-hismox]12(OH2)3}·212H2O (1), where hismox is a chiral ligand derived from the natural amino acid l-histidine, are replaced by CH3NH3+. The resulting compound, (CH3NH3)12{CuII24[(S,S)-hismox]12(OH2)3}·178H2O (2), retains the polar space group of 1 and is ferroelectric below 260 K. These results op…
A novel oxalate-based three-dimensional coordination polymer showing magnetic ordering and high proton conductivity
2017
A novel three-dimensional (3D) coordination polymer with the formula (C3N2H5)4[MnCr2(ox)6]·5H2O (2), where ox = oxalate and C3N2H5 = imidazolium cation, is reported. Single crystal X-ray diffraction reveals that this porous coordination polymer adopts a chiral three-dimensional quartz-like architecture, with the guest imidazolium cations and water molecules being hosted in its pores. This novel multifunctional material exhibits both a ferromagnetic ordering at TC = 3.0 K, related to the host MnCr2 network, and high proton conductivity [1.86 × 10−3 S cm−1 at 295 K and 88% relative humidity (RH)] due to the presence of the acidic imidazolium cations and free water molecules. The similarity of…
Topological Versatility of Oxalate-Based Bimetallic One-Dimensional (1D) Compounds Associated with Ammonium Cations
2012
A new family of oxalate-bridged chains of formula (C(1))[Mn(H(2)O)(3)Cr(ox)(3)]·H(2)O (1), (C(2))(4)[Mn(2)(H(2)O)(3)ClCr(2)(ox)(6)]Cl·H(2)O·2C(2)H(6)O (2a), (C(2))(4)[Co(2)(H(2)O)(3)ClCr(2)(ox)(6)]Cl·2H(2)O·2C(2)H(6)O (2b), [Mn(C(3))(H(2)O)(2)Cr(ox)(3)]·H(2)O (3), and (C(4))(4)[Mn(H(2)O){Cr(ox)(3)}(2)]·H(2)O (4) [C(1)(+) = tetramethylammonium, C(2)(+) = 4-N,N-dimethylaminopyridinium, C(3)(+) = 1-hydroxyethyl-4-N,N-dimethylamino-pyridinium, C(4)(+) = 1-hydroxyethyl-4-(4'-dimethylamino-α-styryl)-pyridinium, ox(2-) = oxalate] have been synthesized by self-assembly of the (C(n))(3)[Cr(ox)(3)] (n = 1-4) mononuclear compound and the chloride salts of the corresponding metal(II) ions. The crystal …
CCDC 1555659: Experimental Crystal Structure Determination
2017
Related Article: Marta Mon, Julia Vallejo, Jorge Pasán, Oscar Fabelo, Cyrille Train, Michel Verdaguer, Shin-ichi Ohkoshi, Hiroko Tokoro, Kosuke Nakagawa, Emilio Pardo|2017|Dalton Trans.|46|15130|doi:10.1039/C7DT03415F
CCDC 1541852: Experimental Crystal Structure Determination
2017
Related Article: Marta Mon, Jesús Ferrando-Soria, Michel Verdaguer, Cyrille Train, Charles Paillard, Brahim Dkhil, Carlo Versace, Rosaria Bruno, Donatella Armentano, Emilio Pardo|2017|J.Am.Chem.Soc.|139|8098|doi:10.1021/jacs.7b03633
CCDC 1541853: Experimental Crystal Structure Determination
2017
Related Article: Marta Mon, Jesús Ferrando-Soria, Michel Verdaguer, Cyrille Train, Charles Paillard, Brahim Dkhil, Carlo Versace, Rosaria Bruno, Donatella Armentano, Emilio Pardo|2017|J.Am.Chem.Soc.|139|8098|doi:10.1021/jacs.7b03633
CCDC 1555658: Experimental Crystal Structure Determination
2017
Related Article: Marta Mon, Julia Vallejo, Jorge Pasán, Oscar Fabelo, Cyrille Train, Michel Verdaguer, Shin-ichi Ohkoshi, Hiroko Tokoro, Kosuke Nakagawa, Emilio Pardo|2017|Dalton Trans.|46|15130|doi:10.1039/C7DT03415F
CCDC 1480930: Experimental Crystal Structure Determination
2016
Related Article: Marta Mon, Thais Grancha, Michel Verdaguer, Cyrille Train, Donatella Armentano and Emilio Pardo|2016|Inorg.Chem.|55|6845|doi:10.1021/acs.inorgchem.6b01256