showing 20 related works from this author
Enhanced bistability by guest inclusion in Fe(ii) spin crossover porous coordination polymers
2012
Inclusion of thiourea guest molecules in the tridimensional spin crossover porous coordination polymers {[Fe(pyrazine)[M(CN)(4)]} (M = Pd, Pt) leads to novel clathrates exhibiting unprecedented large thermal hysteresis loops of ca. 60 K wide centered near room temperature.
Metal-Controlled Magnetoresistance at Room Temperature in Single-Molecule Devices
2017
The appropriate choice of the transition metal complex and metal surface electronic structure opens the possibility to control the spin of the charge carriers through the resulting hybrid molecule/metal spinterface in a single-molecule electrical contact at room temperature. The single-molecule conductance of a Au/molecule/Ni junction can be switched by flipping the magnetization direction of the ferromagnetic electrode. The requirements of the molecule include not just the presence of unpaired electrons: the electronic configuration of the metal center has to provide occupied or empty orbitals that strongly interact with the junction metal electrodes and that are close in energy to their F…
Effect of Metal Complexation on the Conductance of Single-Molecular Wires Measured at Room Temperature
2014
The present work aims to give insight into the effect that metal coordination has on the room-temperature conductance of molecular wires. For that purpose, we have designed a family of rigid, highly conductive ligands functionalized with different terminations (acetylthiols, pyridines, and ethynyl groups), in which the conformational changes induced by metal coordination are negligible. The single-molecule conductance features of this series of molecular wires and their corresponding Cu(I) complexes have been measured in break-junction setups at room temperature. Experimental and theoretical data show that no matter the anchoring group, in all cases metal coordination leads to a shift towar…
Reversible Chemisorption of Sulfur Dioxide in a Spin Crossover Porous Coordination Polymer
2013
The chemisorption of sulfur dioxide (SO2) on the Hofmann-like spin crossover porous coordination polymer (SCO-PCP) {Fe(pz)[Pt(CN)4]} has been investigated at room temperature. Thermal analysis and adsorption-desorption isotherms showed that ca. 1 mol of SO2 per mol of {Fe(pz)[Pt(CN)4]} was retained in the pores. Nevertheless, the SO2 was loosely attached to the walls of the host network and completely released in 24 h at 298 K. Single crystals of {Fe(pz)[Pt(CN)4]}·nSO2 (n ≈ 0.25) were grown in water solutions saturated with SO2, and its crystal structure was analyzed at 120 K. The SO2 molecule is coordinated to the Pt(II) ion through the sulfur atom ion, Pt-S = 2.585(4) Å. This coordination…
Guest Modulation of Spin-Crossover Transition Temperature in a Porous Iron(II) Metal Organic Framework: Experimental and Periodic DFT Studies
2014
The synthesis, structure, and magnetic properties of three clathrate derivatives of the spin-crossover porous coordination polymer {Fe(pyrazine)[Pt(CN)(4)]} (1) with five-membered aromatic molecules furan, pyrrole, and thiophene is reported. The three derivatives have a cooperative spin-crossover transition with hysteresis loops 14-29 K wide and average critical temperatures T-c=201 K (1.fur), 167 K (1.pyr), and 114.6 K (1.thio) well below that of the parent compound 1 (T-c=295 K), confirming stabilization of the HS state. The transition is complete and takes place in two steps for 1.fur, while 1.pyr and 1.thio show 50% spin transition. For 1.fur the transformation between the HS and IS (mi…
Two C3-symmetric Dy3 III complexes with triple di-μ-methoxo-μ-phenoxo bridges, magnetic ground state, and single-molecule magnetic behavior
2014
Two series of isostructural C3-symmetric Ln3 complexes Ln3·[BPh4] and Ln3·0. 33[Ln(NO3)6] (in which LnIII=Gd and Dy) have been prepared from an amino-bis(phenol) ligand. X-ray studies reveal that LnIII ions are connected by one μ2-phenoxo and two μ3-methoxo bridges, thus leading to a hexagonal bipyramidal Ln3O5 bridging core in which LnIII ions exhibit a biaugmented trigonal-prismatic geometry. Magnetic susceptibility studies and ab initio complete active space self-consistent field (CASSCF) calculations indicate that the magnetic coupling between the DyIII ions, which possess a high axial anisotropy in the ground state, is very weakly antiferromagnetic and mainly dipolar in nature. To redu…
Large Conductance Switching in a Single-Molecule Device through Room Temperature Spin-Dependent Transport
2016
Controlling the spin of electrons in nanoscale electronic devices is one of the most promising topics aiming at developing devices with rapid and high density information storage capabilities. The interface magnetism or spinterface resulting from the interaction between a magnetic molecule and a metal surface, or vice versa, has become a key ingredient in creating nanoscale molecular devices with novel functionalities. Here, we present a single-molecule wire that displays large (>10000%) conductance switching by controlling the spin-dependent transport under ambient conditions (room temperature in a liquid cell). The molecular wire is built by trapping individual spin crossover Fe-II comple…
CCDC 684617: Experimental Crystal Structure Determination
2015
Related Article: Daniel Aravena, Zulema Arcís Castillo, M. Carmen Muñoz, Ana B. Gaspar, Ko Yoneda, Ryo Ohtani, Akio Mishima, Susumu Kitagawa, Masaaki Ohba, José Antonio Real, Eliseo Ruiz|2014|Chem.-Eur.J.|20|12864|doi:10.1002/chem.201402292
CCDC 684616: Experimental Crystal Structure Determination
2015
Related Article: Daniel Aravena, Zulema Arcís Castillo, M. Carmen Muñoz, Ana B. Gaspar, Ko Yoneda, Ryo Ohtani, Akio Mishima, Susumu Kitagawa, Masaaki Ohba, José Antonio Real, Eliseo Ruiz|2014|Chem.-Eur.J.|20|12864|doi:10.1002/chem.201402292
CCDC 969288: Experimental Crystal Structure Determination
2014
Related Article: Mikko M. Hänninen, Antonio J. Mota, Daniel Aravena, Eliseo Ruiz, Reijo Sillanpää, Agustín Camón, Marco Evangelisti, Enrique Colacio|2014|Chem.-Eur.J.|20|8410|doi:10.1002/chem.201402392
CCDC 684618: Experimental Crystal Structure Determination
2015
Related Article: Daniel Aravena, Zulema Arcís Castillo, M. Carmen Muñoz, Ana B. Gaspar, Ko Yoneda, Ryo Ohtani, Akio Mishima, Susumu Kitagawa, Masaaki Ohba, José Antonio Real, Eliseo Ruiz|2014|Chem.-Eur.J.|20|12864|doi:10.1002/chem.201402292
CCDC 969290: Experimental Crystal Structure Determination
2014
Related Article: Mikko M. Hänninen, Antonio J. Mota, Daniel Aravena, Eliseo Ruiz, Reijo Sillanpää, Agustín Camón, Marco Evangelisti, Enrique Colacio|2014|Chem.-Eur.J.|20|8410|doi:10.1002/chem.201402392
CCDC 969289: Experimental Crystal Structure Determination
2014
Related Article: Mikko M. Hänninen, Antonio J. Mota, Daniel Aravena, Eliseo Ruiz, Reijo Sillanpää, Agustín Camón, Marco Evangelisti, Enrique Colacio|2014|Chem.-Eur.J.|20|8410|doi:10.1002/chem.201402392
CCDC 1577872: Experimental Crystal Structure Determination
2017
Related Article: Albert C. Aragonès, Daniel Aravena, Francisco J. Valverde-Muñoz, José Antonio Real, Fausto Sanz, Ismael Díez-Pérez, Eliseo Ruiz|2017|J.Am.Chem.Soc.|139|5768|doi:10.1021/jacs.6b11166
CCDC 684615: Experimental Crystal Structure Determination
2015
Related Article: Daniel Aravena, Zulema Arcís Castillo, M. Carmen Muñoz, Ana B. Gaspar, Ko Yoneda, Ryo Ohtani, Akio Mishima, Susumu Kitagawa, Masaaki Ohba, José Antonio Real, Eliseo Ruiz|2014|Chem.-Eur.J.|20|12864|doi:10.1002/chem.201402292
CCDC 684614: Experimental Crystal Structure Determination
2015
Related Article: Daniel Aravena, Zulema Arcís Castillo, M. Carmen Muñoz, Ana B. Gaspar, Ko Yoneda, Ryo Ohtani, Akio Mishima, Susumu Kitagawa, Masaaki Ohba, José Antonio Real, Eliseo Ruiz|2014|Chem.-Eur.J.|20|12864|doi:10.1002/chem.201402292
CCDC 969291: Experimental Crystal Structure Determination
2014
Related Article: Mikko M. Hänninen, Antonio J. Mota, Daniel Aravena, Eliseo Ruiz, Reijo Sillanpää, Agustín Camón, Marco Evangelisti, Enrique Colacio|2014|Chem.-Eur.J.|20|8410|doi:10.1002/chem.201402392
CCDC 987530: Experimental Crystal Structure Determination
2015
Related Article: Daniel Aravena, Zulema Arcís Castillo, M. Carmen Muñoz, Ana B. Gaspar, Ko Yoneda, Ryo Ohtani, Akio Mishima, Susumu Kitagawa, Masaaki Ohba, José Antonio Real, Eliseo Ruiz|2014|Chem.-Eur.J.|20|12864|doi:10.1002/chem.201402292
CCDC 987531: Experimental Crystal Structure Determination
2015
Related Article: Daniel Aravena, Zulema Arcís Castillo, M. Carmen Muñoz, Ana B. Gaspar, Ko Yoneda, Ryo Ohtani, Akio Mishima, Susumu Kitagawa, Masaaki Ohba, José Antonio Real, Eliseo Ruiz|2014|Chem.-Eur.J.|20|12864|doi:10.1002/chem.201402292
CCDC 929061: Experimental Crystal Structure Determination
2013
Related Article: Zulema Arcís-Castillo, Francisco J. Muñoz-Lara, M. Carmen Muñoz, Daniel Aravena, Ana B. Gaspar, Juan F. Sánchez-Royo, Eliseo Ruiz, Masaaki Ohba, Ryotaro Matsuda, Susumu Kitagawa, and José A. Real|2013|Inorg.Chem.|52|12777|doi:10.1021/ic4020477