0000000001299981
AUTHOR
Roberto Cortés
A novel ?-N-cyanate-bridged nickel dinier exhibiting ferromagnetic coupling: Di-?-cyanate-bis(aqua-2,2?:6?,2?-terpyridine)dinickel(II) hexafluorophosphate
Magnetostructural correlations in parallel square-planar halo-bridged copper(II) dimers. Part II: Structure and magnetic properties of [Cu2(terpy)2Br2](PF6)2
Abstract The crystal and molecular structure of bis-μ- bromo-bis [(2,2′:6′,2″ - terpyridyl) copper (II) ] bis (hexafluorophosphate) has been determined from three dimensional single-crystal X-ray diffraction data, collected by counter techniques. The blue crystals belong to the monoclinic system, space group P21/a, with four formula units in a unit cell of dimensions a=20.40(2), b=13.35(2), c=6.453(8) A and β=97.74(9)°. The structure was solved using a refinement procedure and starting with the atomic positions of the isostructural complex [Cu(terpy)- Cl]2(PF6)2, to final agreement factors R=0.071 (Rw=0.077). The structure consists of dimeric molecules bridged by two bromine atoms. The coor…
Nanoporosity, Inclusion Chemistry, and Spin Crossover in Orthogonally Interlocked Two-Dimensional Metal-Organic Frameworks
[Fe(tvp)(2)(NCS)(2)] (1) (tvp=trans-(4,4-vinylenedipyridine)) consists of two independent perpendicular stacks of mutually interpenetrated two-dimensional grids. This uncommon supramolecular conformation defines square-sectional nanochannels (diagonal approximate to 2.2nm) in which inclusion molecules are located. The guest-loaded framework 1@guest displays complete thermal spin-crossover (SCO) behavior with the characteristic temperature T-1/2 dependent on the guest molecule, whereas the guest-free species 1 is paramagnetic whatever the temperature. For the benzene-guest derivatives, the characteristic SCO temperature T-1/2 decreases as the Hammet sigma(p) parameter increases. In general, …
Defective dicubane-like tetranuclear nickel(II) cyanate and azide nanoscale magnets.
Four tetrameric nickel(II) pseudohalide complexes have been synthesized and structurally, spectroscopically, and magnetically characterized. Compounds 1-3 are isostructural and exhibit the general formula [Ni(2)(dpk·OH)(dpk·CH(3)O)(L)(H(2)O)](2)A(2)·2H(2)O, where dpk = di-2-pyridylketone; L = N(3)(-), and A = ClO(4)(-) for 1, L = NCO(-) and A = ClO(4)(-) for 2, and L = NCO(-) and A = NO(3)(-) for 3. The formula for 4 is [Ni(4)(dpk·OH)(3) (dpk·CH(3)O)(2)(NCO)](BF(4))(2)·3H(2)O. The ligands dpk·OH(-) and dpk·CH(3)O(-) result from solvolysis and ulterior deprotonation of dpk in water and methanol, respectively. The four tetramers exhibit a dicubane-like core with two missing vertexes where the…
CCDC 1042612: Experimental Crystal Structure Determination
Related Article: Tania Romero-Morcillo, Noelia De la Pinta, Lorena M. Callejo, Lucía Piñeiro-López, M. Carmen Muñoz, Gotzon Madariaga, Sacramento Ferrer, Tomasz Breczewski, Roberto Cortés, José A. Real|2015|Chem.-Eur.J.|21|12112|doi:10.1002/chem.201500310
CCDC 1042617: Experimental Crystal Structure Determination
Related Article: Tania Romero-Morcillo, Noelia De la Pinta, Lorena M. Callejo, Lucía Piñeiro-López, M. Carmen Muñoz, Gotzon Madariaga, Sacramento Ferrer, Tomasz Breczewski, Roberto Cortés, José A. Real|2015|Chem.-Eur.J.|21|12112|doi:10.1002/chem.201500310
CCDC 1042613: Experimental Crystal Structure Determination
Related Article: Tania Romero-Morcillo, Noelia De la Pinta, Lorena M. Callejo, Lucía Piñeiro-López, M. Carmen Muñoz, Gotzon Madariaga, Sacramento Ferrer, Tomasz Breczewski, Roberto Cortés, José A. Real|2015|Chem.-Eur.J.|21|12112|doi:10.1002/chem.201500310
CCDC 1042615: Experimental Crystal Structure Determination
Related Article: Tania Romero-Morcillo, Noelia De la Pinta, Lorena M. Callejo, Lucía Piñeiro-López, M. Carmen Muñoz, Gotzon Madariaga, Sacramento Ferrer, Tomasz Breczewski, Roberto Cortés, José A. Real|2015|Chem.-Eur.J.|21|12112|doi:10.1002/chem.201500310
CCDC 1042614: Experimental Crystal Structure Determination
Related Article: Tania Romero-Morcillo, Noelia De la Pinta, Lorena M. Callejo, Lucía Piñeiro-López, M. Carmen Muñoz, Gotzon Madariaga, Sacramento Ferrer, Tomasz Breczewski, Roberto Cortés, José A. Real|2015|Chem.-Eur.J.|21|12112|doi:10.1002/chem.201500310
CCDC 1042616: Experimental Crystal Structure Determination
Related Article: Tania Romero-Morcillo, Noelia De la Pinta, Lorena M. Callejo, Lucía Piñeiro-López, M. Carmen Muñoz, Gotzon Madariaga, Sacramento Ferrer, Tomasz Breczewski, Roberto Cortés, José A. Real|2015|Chem.-Eur.J.|21|12112|doi:10.1002/chem.201500310
CCDC 1042611: Experimental Crystal Structure Determination
Related Article: Tania Romero-Morcillo, Noelia De la Pinta, Lorena M. Callejo, Lucía Piñeiro-López, M. Carmen Muñoz, Gotzon Madariaga, Sacramento Ferrer, Tomasz Breczewski, Roberto Cortés, José A. Real|2015|Chem.-Eur.J.|21|12112|doi:10.1002/chem.201500310
CCDC 1042610: Experimental Crystal Structure Determination
Related Article: Tania Romero-Morcillo, Noelia De la Pinta, Lorena M. Callejo, Lucía Piñeiro-López, M. Carmen Muñoz, Gotzon Madariaga, Sacramento Ferrer, Tomasz Breczewski, Roberto Cortés, José A. Real|2015|Chem.-Eur.J.|21|12112|doi:10.1002/chem.201500310