0000000001305927
AUTHOR
Mariadel Déniz
showing 34 related works from this author
Magnetic coupling and spin topology in linear oxalato-bridged tetranuclear chromium(III)–copper(II) complexes with aromatic diimine ligands
2013
Abstract A novel heterotetranuclear chromium(III)–copper(II) complex of formula {[CrIII(bpy)(ox)2]2CuII2(bpy)2(ox)}·6H2O (1) has been synthesized by the ligand exchange reaction between Ph4P[CrIII(bpy)(ox)2]·H2O and [CuII(bpy)2(NO3)]NO3·MeOH in methanol (bpy = 2,2′-bipyridine; ox2− = oxalate dianion). The X-ray crystal structure of 1 consists of neutral oxalato-bridged CrIII2Cu2II zigzag entities which are formed by the monodentate coordination of two [CrIII(bpy)(ox)2]− mononuclear anionic units through one of its two oxalato groups toward a [CuII2(bpy)2(ox)]2+ dinuclear cationic moiety featuring relatively long axial bonds at the square pyramidal CuII ions. Variable temperature (2.0–300 K)…
Copper(II)-methylmalonate complexes with unidentate N-donor ligands: Syntheses, structural characterization and magnetic properties
2009
Abstract Two new methylmalonate-bridged copper(II) complexes with the formulas [Cu(3-Ipy)(Memal)(H 2 O)] ( 1 ) and [Cu(2,4′-bpy)(Memal)(H 2 O)] · 3H 2 O ( 2 ) [Memal = methylmalonate dianion, 3-Ipy = 3-iodopyridine, 2,4′-bpy = 2,4′-bipyridine] have been synthesized and characterized by X-ray diffraction. Both compounds crystallize in the monoclinic space group P 2 1 / n and Z = 4, with unit cell parameters a = 8.5874(13) A, b = 7.1738(14) A, c = 19.093(5) A, β = 99.509(15)° in 1 and a = 17.375(4) A, b = 7.3305(14) A, c = 14.247(3) A, β = 111.409(15)° in 2 . The structures of 1 and 2 consist of zigzag chains of anti-syn carboxylate-bridged copper(II) ions running along the b directi…
Metal-organic coordination frameworks based on mixed methylmalonate and 4,4′-bipiridine ligands: synthesis, crystal structure and magnetic properties
2010
Five new complexes of formulae [M2(4,4′-bpy)(Memal)2X2]n [M = Fe(III) (2), Mn(II) (3), Co(II) (4), Ni(II) (5) and Zn(II) (6), and X = Cl−/OH− (2) and H2O (3–6); 4,4′-bpy = 4,4′-bipyridine and Memal = methylmalonate dianion] have been synthesized by following the previously reported procedure for [Cu2(4,4′-bpy)(Memal)2(H2O)2]n (1). Moreover, two new phases of the Cu(II)/Memal/4,4′-bpy system, namely {[Cu(4,4′-bpy)2][Cu(4,4′-bpy)2(Memal)(NO3)(H2O)]}n·nNO3·3.5nH2O (7) and [Cu(4,4′-bpy)2(Memal)(H2O)]n·nH2O (8), were obtained by varying the synthetic conditions. They were all structurally characterized by single crystal X-ray diffraction, and the magnetic properties of 2–5, 7 and 8 were investig…
Reversible solvatomagnetic switching in a single-ion magnet from an entatic state
2016
We have developed a new strategy for the design and synthesis of multifunctional molecular materials showing reversible magnetic and optical switching.
Synthesis, structural analysis, and magnetic properties of ethylmalonate-manganese(II) complexes
2011
12 páginas, 10 figuras, 6 tablas.-- et al.
Copper(II) assembling with bis(2-pyridylcarbonyl)amidate and N,N'-2,2-phenylenebis(oxamate).
2013
We herein present the synthesis and X-ray structures of five copper(II) complexes of formulae [Cu(bpca)(CF3SO3)(H2O)]·H2O (1), [Cu(bpca)(Phpr)(H2O)]·3/2H2O (2), {[Cu(bpca)]2[Cu(opba)(H2O)]}·H2O (3), {[Cu(bpca)]2(H2opba)}2·6H2O (4) and [Cu(bpca)(EtH2opba)]n (5), where bpca = bis(2-pyridylcarbonyl)amidate, Phpr = 3-phenylpropionate, CF3SO3(−) = triflate (anion of the trifluoromethanesulphonic acid), H4opba = N,N′-1,2-phenylenebis(oxamic acid), and EtH3opba = monoethyl ester derivative of the H4opba. 1 and 2 are mononuclear copper(II) complexes where the copper atom is five-coordinate in distorted square pyramidal surroundings with a tridentate bpca and a water molecule (1)/carboxylate oxygen …
Syntheses, crystal structures and magnetic properties of five new manganese(ii) complexes: Influence of the conformation of different alkyl/aryl subs…
2014
et al.
Theoretical Insights into the Ferromagnetic Coupling in Oxalato-Bridged Chromium(III)-Cobalt(II) and Chromium(III)-Manganese(II) Dinuclear Complexes …
2012
Two novel heterobimetallic complexes of formula [Cr(bpy)(ox)(2)Co(Me(2)phen)(H(2)O)(2)][Cr(bpy)(ox)(2)]·4H(2)O (1) and [Cr(phen)(ox)(2)Mn(phen)(H(2)O)(2)][Cr(phen)(ox)(2)]·H(2)O (2) (bpy = 2,2'-bipyridine, phen = 1,10-phenanthroline, and Me(2)phen = 2,9-dimethyl-1,10-phenanthroline) have been obtained through the "complex-as-ligand/complex-as-metal" strategy by using Ph(4)P[CrL(ox)(2)]·H(2)O (L = bpy and phen) and [ML'(H(2)O)(4)](NO(3))(2) (M = Co and Mn; L' = phen and Me(2)phen) as precursors. The X-ray crystal structures of 1 and 2 consist of bis(oxalato)chromate(III) mononuclear anions, [Cr(III)L(ox)(2)](-), and oxalato-bridged chromium(III)-cobalt(II) and chromium(III)-manganese(II) din…
Solution and solid state studies with the bis-oxalato building block [Cr(pyim)(C2O4)2]− [pyim = 2-(2′-pyridyl)imidazole]
2013
The preparation, X-ray structure, and variable temperature magnetic study of the new compound {Ba(H2O)3/2[Cr(pyim)(C2O4)2]2}n·9/2nH2O (1) [pyim = 2-(2′-pyridyl)imidazole and C2O42− = dianion of oxalic acid], together with the potentiometric and spectrophotometric studies of the protonation/deprotonation equilibria of the pyim ligand and the ternary complex [Cr(pyim)(C2O4)2]−, are reported herein. The crystal structure of 1 consists of neutral chains, with diamond-shaped units sharing barium(II), with the two other corners occupied by chromium(III). The two metal centers are connected through bis(bidentate) oxalate. Very weak antiferromagnetic interactions between the chromium(III) ions occu…
Influence of the coligand in the magnetic properties of a series of copper(ii)–phenylmalonate complexes
2014
This work presents a series of layered systems based on phenylmalonate-containing copper(II) complexes and different coligands. Eight compounds [Cu(L)(Phmal)]n where L = pyrimidine (pym, 1) pyrazine (pyz, 2), 3-cyanopyridine (3-CNpy, 3), 4-cyanopyridine (4-CNpy, 4), 3-fluoropyridine (3-Fpy, 5), 3-chloropyridine (3-Clpy, 6), 3-bromopyridine (3-Brpy, 7) and 3-iodopyridine (3-Ipy, 8), have been synthesized and magneto-structurally characterized. The coligands selected not only modify the coordination environment of the metal ion, blocking or extending the polymerization, but also interact with the phenyl ring of the phenylmalonate ligand and dramatically affect the crystal packing through weak…
Synthesis, structural analysis, and thermal and spectroscopic studies of methylmalonate-containing zinc(II) complexes
2012
The synthesis, crystal structure, thermal analysis and spectroscopic studies of five zinc(II) complexes of formulae [Zn(Memal)(H2O)]n (1) and [Zn2(L)(Memal)2(H2O)2]n (2-5) [H2Memal = methylmalonic acid, and L = 4,4′-bipyridine (4,4′-bpy) (2), 1,2-bis(4-pyridyl)ethylene (bpe) (3), 1,2-bis(4-pyridyl)ethane (bpa) (4) and 4,4′-azobispyridine (azpy) (5)] are presented here. The crystal structure of 1 is a three-dimensional arrangement of zinc(II) cations interconnected by methylmalonate groups adopting the μ3-κ2O:κO’:κO”:κO”’ coordination mode to afford a rare (10,3)-d utp-network. The structures of the compounds 2-5 are also three-dimensional and they consist of corrugated square layers of meth…
Photoluminescent and Slow Magnetic Relaxation Studies on Lanthanide(III)-2,5-pyrazinedicarboxylate Frameworks
2017
In the series described in this work, the hydrothermal synthesis led to oxidation of the 5-methyl-pyrazinecarboxylate anion to the 2,5-pyrazinedicarboxylate dianion (2,5-pzdc) allowing the preparation of three-dimensional (3D) lanthanide(III) organic frameworks of formula {[Ln2(2,5-pzdc)3(H2O)4]·6H2O}n [Ln = Ce (1), Pr (2), Nd (3), and Eu (4)] and {[Er2(2,5-pzdc)3(H2O)4]·5H2O}n (5). Single-crystal X-ray diffraction on 1–5 reveals that they crystallize in the triclinic system, P1 space group with the series 1–4 being isostructural. The crystal structure of the five compounds are 3D with the lanthanide(III) ions linked through 2,5-pzdc2– dianions acting as two- and fourfold connectors, buildi…
Cadmium(ii) coordination polymers based on substituted malonic acid: synthesis, characterization and photoluminescence properties
2017
Four novel complexes of cadmium(II) with alkyl/aryl-substituted malonate ligands of formulae {[Cd(Memal)(H2O)]6·0.5H2O}n (1), [Cd(Etmal)(H2O)]n (2), [Cd(Butmal)(H2O)]n (3) and [Cd(Bzmal)(H2O)]n (4), (Memal = methylmalonate, Etmal = ethylmalonate, Butmal = butylmalonate and Bzmal = benzylmalonate) have been prepared and characterized by single crystal X-ray analysis. Their luminescence, UV-Vis absorption properties and thermal behaviour were also investigated. Complex 1 is a three-dimensional compound where each metal centre is connected to four other ones leading to a sodalite network with the point symbol {42·64}. Each cadmium(II) ion in 1 is seven-coordinate with a water molecule and six …
CCDC 1510396: Experimental Crystal Structure Determination
2017
Related Article: Maria Vanda Marinho, Daniella O. Reis, Willian X. C. Oliveira, Lippy F. Marques, Humberto O. Stumpf, Mariadel Déniz, Jorge Pasán, Catalina Ruiz-Pérez, Joan Cano, Francesc Lloret, and Miguel Julve|2017|Inorg.Chem.|56|2108|doi:10.1021/acs.inorgchem.6b02774
CCDC 1545085: Experimental Crystal Structure Determination
2017
Related Article: Mariadel Déniz, Jorge Pasán, Beatriz Rasines, Pablo Lorenzo-Luis, Fernando Lahoz, Corina Vera-Gonzales, Miguel Julve, Catalina Ruiz-Pérez|2017|Inorg.Chem.Front.|4|1384|doi:10.1039/C7QI00212B
CCDC 996269: Experimental Crystal Structure Determination
2014
Related Article: Jorge Pasán, Joaquín Sanchiz, Óscar Fabelo, Laura Cañadillas-Delgado, Mariadel Déniz, Pau Díaz-Gallifa, Carla Martínez-Benito, Francesc Lloret, Miguel Julve, Catalina Ruiz-Pérez|2014|CrystEngComm|16|8106|doi:10.1039/C4CE00834K
CCDC 996270: Experimental Crystal Structure Determination
2014
Related Article: Jorge Pasán, Joaquín Sanchiz, Óscar Fabelo, Laura Cañadillas-Delgado, Mariadel Déniz, Pau Díaz-Gallifa, Carla Martínez-Benito, Francesc Lloret, Miguel Julve, Catalina Ruiz-Pérez|2014|CrystEngComm|16|8106|doi:10.1039/C4CE00834K
CCDC 996271: Experimental Crystal Structure Determination
2014
Related Article: Jorge Pasán, Joaquín Sanchiz, Óscar Fabelo, Laura Cañadillas-Delgado, Mariadel Déniz, Pau Díaz-Gallifa, Carla Martínez-Benito, Francesc Lloret, Miguel Julve, Catalina Ruiz-Pérez|2014|CrystEngComm|16|8106|doi:10.1039/C4CE00834K
CCDC 1545086: Experimental Crystal Structure Determination
2017
Related Article: Mariadel Déniz, Jorge Pasán, Beatriz Rasines, Pablo Lorenzo-Luis, Fernando Lahoz, Corina Vera-Gonzales, Miguel Julve, Catalina Ruiz-Pérez|2017|Inorg.Chem.Front.|4|1384|doi:10.1039/C7QI00212B
CCDC 937587: Experimental Crystal Structure Determination
2014
Related Article: Mariadel Déniz, Irene Hernández-Rodríguez, Jorge Pasán, Oscar Fabelo, Laura Cañadillas-Delgado, Julia Vallejo, Miguel Julve, Francesc Lloret, Catalina Ruiz-Pérez|2014|CrystEngComm|16|2766|doi:10.1039/C3CE42086H
CCDC 996274: Experimental Crystal Structure Determination
2014
Related Article: Jorge Pasán, Joaquín Sanchiz, Óscar Fabelo, Laura Cañadillas-Delgado, Mariadel Déniz, Pau Díaz-Gallifa, Carla Martínez-Benito, Francesc Lloret, Miguel Julve, Catalina Ruiz-Pérez|2014|CrystEngComm|16|8106|doi:10.1039/C4CE00834K
CCDC 1510397: Experimental Crystal Structure Determination
2017
Related Article: Maria Vanda Marinho, Daniella O. Reis, Willian X. C. Oliveira, Lippy F. Marques, Humberto O. Stumpf, Mariadel Déniz, Jorge Pasán, Catalina Ruiz-Pérez, Joan Cano, Francesc Lloret, and Miguel Julve|2017|Inorg.Chem.|56|2108|doi:10.1021/acs.inorgchem.6b02774
CCDC 937589: Experimental Crystal Structure Determination
2014
Related Article: Mariadel Déniz, Irene Hernández-Rodríguez, Jorge Pasán, Oscar Fabelo, Laura Cañadillas-Delgado, Julia Vallejo, Miguel Julve, Francesc Lloret, Catalina Ruiz-Pérez|2014|CrystEngComm|16|2766|doi:10.1039/C3CE42086H
CCDC 946980: Experimental Crystal Structure Determination
2013
Related Article: Francisco R. Fortea-Pérez, Julia Vallejo, Mario Inclán, Mariadel Déniz, Jorge Pasán, Enrique García-España and Miguel Julve|2013|J.Coord.Chem.|66|3349|doi:10.1080/00958972.2013.837460
CCDC 937590: Experimental Crystal Structure Determination
2014
Related Article: Mariadel Déniz, Irene Hernández-Rodríguez, Jorge Pasán, Oscar Fabelo, Laura Cañadillas-Delgado, Julia Vallejo, Miguel Julve, Francesc Lloret, Catalina Ruiz-Pérez|2014|CrystEngComm|16|2766|doi:10.1039/C3CE42086H
CCDC 1545087: Experimental Crystal Structure Determination
2017
Related Article: Mariadel Déniz, Jorge Pasán, Beatriz Rasines, Pablo Lorenzo-Luis, Fernando Lahoz, Corina Vera-Gonzales, Miguel Julve, Catalina Ruiz-Pérez|2017|Inorg.Chem.Front.|4|1384|doi:10.1039/C7QI00212B
CCDC 1545088: Experimental Crystal Structure Determination
2017
Related Article: Mariadel Déniz, Jorge Pasán, Beatriz Rasines, Pablo Lorenzo-Luis, Fernando Lahoz, Corina Vera-Gonzales, Miguel Julve, Catalina Ruiz-Pérez|2017|Inorg.Chem.Front.|4|1384|doi:10.1039/C7QI00212B
CCDC 937591: Experimental Crystal Structure Determination
2014
Related Article: Mariadel Déniz, Irene Hernández-Rodríguez, Jorge Pasán, Oscar Fabelo, Laura Cañadillas-Delgado, Julia Vallejo, Miguel Julve, Francesc Lloret, Catalina Ruiz-Pérez|2014|CrystEngComm|16|2766|doi:10.1039/C3CE42086H
CCDC 1510399: Experimental Crystal Structure Determination
2017
Related Article: Maria Vanda Marinho, Daniella O. Reis, Willian X. C. Oliveira, Lippy F. Marques, Humberto O. Stumpf, Mariadel Déniz, Jorge Pasán, Catalina Ruiz-Pérez, Joan Cano, Francesc Lloret, and Miguel Julve|2017|Inorg.Chem.|56|2108|doi:10.1021/acs.inorgchem.6b02774
CCDC 937588: Experimental Crystal Structure Determination
2014
Related Article: Mariadel Déniz, Irene Hernández-Rodríguez, Jorge Pasán, Oscar Fabelo, Laura Cañadillas-Delgado, Julia Vallejo, Miguel Julve, Francesc Lloret, Catalina Ruiz-Pérez|2014|CrystEngComm|16|2766|doi:10.1039/C3CE42086H
CCDC 996272: Experimental Crystal Structure Determination
2014
Related Article: Jorge Pasán, Joaquín Sanchiz, Óscar Fabelo, Laura Cañadillas-Delgado, Mariadel Déniz, Pau Díaz-Gallifa, Carla Martínez-Benito, Francesc Lloret, Miguel Julve, Catalina Ruiz-Pérez|2014|CrystEngComm|16|8106|doi:10.1039/C4CE00834K
CCDC 1510395: Experimental Crystal Structure Determination
2017
Related Article: Maria Vanda Marinho, Daniella O. Reis, Willian X. C. Oliveira, Lippy F. Marques, Humberto O. Stumpf, Mariadel Déniz, Jorge Pasán, Catalina Ruiz-Pérez, Joan Cano, Francesc Lloret, and Miguel Julve|2017|Inorg.Chem.|56|2108|doi:10.1021/acs.inorgchem.6b02774
CCDC 1510398: Experimental Crystal Structure Determination
2017
Related Article: Maria Vanda Marinho, Daniella O. Reis, Willian X. C. Oliveira, Lippy F. Marques, Humberto O. Stumpf, Mariadel Déniz, Jorge Pasán, Catalina Ruiz-Pérez, Joan Cano, Francesc Lloret, and Miguel Julve|2017|Inorg.Chem.|56|2108|doi:10.1021/acs.inorgchem.6b02774
CCDC 996273: Experimental Crystal Structure Determination
2014
Related Article: Jorge Pasán, Joaquín Sanchiz, Óscar Fabelo, Laura Cañadillas-Delgado, Mariadel Déniz, Pau Díaz-Gallifa, Carla Martínez-Benito, Francesc Lloret, Miguel Julve, Catalina Ruiz-Pérez|2014|CrystEngComm|16|8106|doi:10.1039/C4CE00834K