0000000000207854
AUTHOR
Marta Orts-arroyo
Field-induced slow magnetic relaxation and magnetocaloric effects in an oxalato-bridged gadolinium(iii)-based 2D MOF
The coexistence of field-induced slow magnetic relaxation and moderately large magnetocaloric efficiency in the supra-Kelvin temperature region occurs in the 2D compound [GdIII2(ox)3(H2O)6]n·4nH2O (1), a feature that can be exploited in the proof-of-concept design of a new class of slow-relaxing magnetic materials for cryogenic magnetic refrigeration.
Magneto-structural correlations in asymmetric oxalato-bridged dicopper(II) complexes with polymethyl-substituted pyrazole ligands
Two oxalato-bridged dinuclear copper(II) complexes, [{Cu(Hdmpz)3}2(μ-ox)](ClO4)2·2H2O (1) and [{Cu(Htmpz)3}2(μ-ox)](ClO4)2·2H2O (2) (Hdmpz = 3,5-dimethyl-1H-pyrazole and Htmpz = 3,4,5-trimethyl-1H-pyrazole), have been synthesized and structurally and magnetically characterized. The crystal structures of 1 and 2 consist of asymmetric bis-bidentate μ-oxalatodicopper(II) complex cations with two short [Cu–O = 1.976(2) (1) and 1.973(2) Å (2)] and two long copper–oxygen bonds [Cu–O = 2.122(2) (1) and 2.110(2) Å (2)]. The environment at each CuII ion in 1 and 2 is closer to the trigonal bipyramidal geometry than to the square pyramidal [τ = 0.633 (1) and 0.711 (2)]. The magnetic properties of 1 a…
Molecular Self-Assembly in a Family of Oxo-Bridged Dinuclear Ruthenium(IV) Systems
A series of six novel RuIV compounds of formula (H2bpy)2[{RuCl5}2(μ-O)] (1), (PPh4)2[{RuCl4(H2O)}2(μ-O)]·4H2O (2), (PPh4)2[{RuCl4(MeCN)}2(μ-O)] (3), (PPh4)2[{RuCl4(dmf)}2(μ-O)] (4), (PPh4)2[{RuCl4(...
Field-induced slow relaxation of magnetisation in two one-dimensional homometallic dysprosium(iii) complexes based on alpha- and beta-amino acids.
Two one-dimensional dysprosium(III) complexes based on α-glycine (gly) and β-alanine (β-ala) amino acids, with the formula {[Dy2(gly)6(H2O)4](ClO4)6·5H2O}n (1) and {[Dy2(β-ala)6(H2O)4](ClO4)6·H2O}n (2), have been synthesised and characterised structurally and magnetically. Both compounds crystallise in the triclinic system with the space group P. In 1, two DyIII ions are eight-coordinate and bound to six oxygen atoms from six gly ligands and two oxygen atoms from two water molecules, showing different geometries (bicapped trigonal prism and square antiprism). In 2, two DyIII ions are nine-coordinate and bound to seven oxygen atoms from six β-ala ligands and two oxygen atoms from two water m…
Detection of Hypoxanthine from Inosine and Unusual Hydrolysis of Immunosuppressive Drug Azathioprine through the Formation of a Diruthenium(III) System
Hypoxanthine (hpx) is an important molecule for both biochemistry research and biomedical applications. It is involved in several biological processes associated to energy and purine metabolism and has been proposed as a biomarker for a variety of disease states. Consequently, the discovery and development of systems suitable for the detection of hypoxanthine is pretty appealing in this research field. Thus, we have obtained a stable diruthenium (III) compound in its dehydrated and hydrated forms with formula [{Ru(µ
Ferro- and Antiferromagnetic Interactions in Oxalato-Centered Inverse Hexanuclear and Chain Copper(II) Complexes with Pyrazole Derivatives.
Two novel copper(II) complexes of formulas {[Cu(4-Hmpz)4][Cu(4-Hmpz)2(µ3-ox-κ2O1,O2:κO2′:κO1′)(ClO4)2]}n (1) and {[Cu(3,4,5-Htmpz)4]2[Cu(3,4,5-Htmpz)2(µ3-ox-κ2O1,O2:κO2′:κO1′)(H2O)(ClO4)]2[Cu2(3,4,5-Htmpz)4(µ-ox-κ2O1,O2:κ2O2′,O1′)]}(ClO4)4·6H2O (2) have been obtained by using 4-methyl-1H-pyrazole (4-Hmpz) and 3,4,5-trimethyl-1H-pyrazole (3,4,5-Htmpz) as terminal ligands and oxalate (ox) as the polyatomic inverse coordination center. The crystal structure of 1 consists of perchlorate counteranions and cationic copper(II) chains with alternating bis(pyrazole)(µ3-κ2O1,O2:κO2′:κO1′-oxalato)copper(II) and tetrakis(pyrazole)copper(II) fragments. The crystal structure of 2 is made up of perchlorat…
A Gadolinium(III) Complex Based on the Thymine Nucleobase with Properties Suitable for Magnetic Resonance Imaging
The paramagnetic gadolinium(III) ion is used as contrast agent in magnetic resonance (MR) imaging to improve the lesion detection and characterization. It generates a signal by changing the relaxivity of protons from associated water molecules and creates a clearer physical distinction between the molecule and the surrounding tissues. New gadolinium-based contrast agents displaying larger relaxivity values and specifically targeted might provide higher resolution and better functional images. We have synthesized the gadolinium(III) complex of formula [Gd(thy)2(H2O)6](ClO4)3·2H2O (1) [thy = 5-methyl-1H-pyrimidine-2,4-dione or thymine], which is the first reported compound based on gadolinium…
Synthesis and characterisation of a novel ferrimagnetic chain based on copper(II) and rhenium(IV)
Abstract A novel one-dimensional copper(II)–rhenium(IV) coordination polymer of formula {[ReIVBr4(μ-ox)CuII(pyim)2]·MeCN}n (1) [ox = oxalate anion, pyim = 2-(2′-pyridyl)imidazole] has been prepared and characterised. Powder X-ray diffraction measurements on a sample of 1 support the purity of the bulk sample, whereas single-crystal X-ray diffraction shows that 1 crystallises in the orthorhombic system with space group Pbca. The crystal structure of 1 is made up of [CuII(pyim)2]2+ cations and [ReBr4(ox)]2− anions linked through bridging bromide and oxalate groups, which generate alternating CuII and ReIV chains. Variable-temperature magnetic susceptibility measurements performed on 1 reveal …
Hexahalorhenate(iv) salts of protonated ciprofloxacin: antibiotic-based single-ion magnets
Two novel Re(IV) compounds of formula [H2cip][Hcip][ReCl6]Cl·H2O (1) and [Hcip]2[ReBr6] (2) [(H2cip)2+/(Hcip)+ = ciprofloxacindiium cation / ciprofloxacinium cation] have been synthesized and studied structurally and magnetically. 1 crystallizes in the monoclinic system with space group P21/c, whereas 2 crystallizes in the orthorhombic system with space group Pbca. 1 and 2 are hexahalorhenate(IV) salts obtained with the protonated ciprofloxacin antibiotic. In their crystal lattice, the [ReX6]2− [X = Cl(1) and Br(2)] anions are well separated from each other through the protonated ciprofloxacindiium (1) and ciprofloxacinium (1 and 2) cations, which are arranged without generating intermolecu…
CCDC 1972102: Experimental Crystal Structure Determination
Related Article: Marta Orts-Arroyo, Isabel Castro, Francesc Lloret, José Martı́nez-Lillo|2020|Cryst.Growth Des.|20|2044|doi:10.1021/acs.cgd.9b01702
CCDC 878930: Experimental Crystal Structure Determination
Related Article: M. Luisa Calatayud, Marta Orts-Arroyo, Miguel Julve, Francesc Lloret, Nadia Marino, Giovanni De Munno, Rafael Ruiz-García, Isabel Castro|2018|J.Coord.Chem.|71|657|doi:10.1080/00958972.2017.1421950
CCDC 1972100: Experimental Crystal Structure Determination
Related Article: Marta Orts-Arroyo, Isabel Castro, Francesc Lloret, José Martı́nez-Lillo|2020|Cryst.Growth Des.|20|2044|doi:10.1021/acs.cgd.9b01702
CCDC 1991872: Experimental Crystal Structure Determination
Related Article: Marta Orts-Arroyo, Isabel Castro, Francesc Lloret, José Martínez-Lillo|2020|Dalton Trans.|49|9155|doi:10.1039/D0DT01126F
CCDC 2046049: Experimental Crystal Structure Determination
Related Article: Marta Orts-Arroyo, Isabel Castro, José Martínez-Lillo|2021|Biosensors|11|19|doi:10.3390/bios11010019
CCDC 1885666: Experimental Crystal Structure Determination
Related Article: Carlos Rojas-Dotti, Adrián Sanchis-Perucho, Marta Orts-Arroyo, Francesc Lloret, José Martínez-Lillo|2019|Comptes Rendus Chimie|22|490|doi:10.1016/j.crci.2019.04.004
CCDC 1898602: Experimental Crystal Structure Determination
Related Article: Marta Orts-Arroyo, Isabel Castro, Francesc Lloret, José Martı́nez-Lillo|2020|Cryst.Growth Des.|20|2044|doi:10.1021/acs.cgd.9b01702
CCDC 1898601: Experimental Crystal Structure Determination
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CCDC 2076621: Experimental Crystal Structure Determination
Related Article: Isabel Castro, M. Luisa Calatayud, Marta Orts-Arroyo, Nicolás Moliner, Nadia Marino, Francesc Lloret, Rafael Ruiz-García, Giovanni De Munno, Miguel Julve|2021|Molecules|26|2792|doi:10.3390/molecules26092792
CCDC 1991873: Experimental Crystal Structure Determination
Related Article: Marta Orts-Arroyo, Isabel Castro, Francesc Lloret, José Martínez-Lillo|2020|Dalton Trans.|49|9155|doi:10.1039/D0DT01126F
CCDC 2112864: Experimental Crystal Structure Determination
Related Article: Adri��n Sanchis-Perucho, Marta Orts-Arroyo, Javier Cam��s-Hern��ndez, Carlos Rojas-Dotti, Emilio Escriv��, Francesc Lloret, Jos�� Mart��nez-Lillo|2021|CrystEngComm|23|8579|doi:10.1039/D1CE01337H
CCDC 2046050: Experimental Crystal Structure Determination
Related Article: Marta Orts-Arroyo, Isabel Castro, José Martínez-Lillo|2021|Biosensors|11|19|doi:10.3390/bios11010019
CCDC 2047766: Experimental Crystal Structure Determination
Related Article: Marta Orts-Arroyo, Renato Rabelo, Ainoa Carrasco-Berlanga, Nicolás Moliner, Joan Cano, Miguel Julve, Francesc Lloret, Giovanni De Munno, Rafael Ruiz-García, Júlia Mayans, José Martínez-Lillo, Isabel Castro|2021|Dalton Trans.|50|3801|doi:10.1039/D1DT00462J
CCDC 1577623: Experimental Crystal Structure Determination
Related Article: M. Luisa Calatayud, Marta Orts-Arroyo, Miguel Julve, Francesc Lloret, Nadia Marino, Giovanni De Munno, Rafael Ruiz-García, Isabel Castro|2018|J.Coord.Chem.|71|657|doi:10.1080/00958972.2017.1421950
CCDC 1972101: Experimental Crystal Structure Determination
Related Article: Marta Orts-Arroyo, Isabel Castro, Francesc Lloret, José Martı́nez-Lillo|2020|Cryst.Growth Des.|20|2044|doi:10.1021/acs.cgd.9b01702
CCDC 2112865: Experimental Crystal Structure Determination
Related Article: Adri��n Sanchis-Perucho, Marta Orts-Arroyo, Javier Cam��s-Hern��ndez, Carlos Rojas-Dotti, Emilio Escriv��, Francesc Lloret, Jos�� Mart��nez-Lillo|2021|CrystEngComm|23|8579|doi:10.1039/D1CE01337H
CCDC 1898600: Experimental Crystal Structure Determination
Related Article: Marta Orts-Arroyo, Isabel Castro, Francesc Lloret, José Martı́nez-Lillo|2020|Cryst.Growth Des.|20|2044|doi:10.1021/acs.cgd.9b01702
CCDC 2076622: Experimental Crystal Structure Determination
Related Article: Isabel Castro, M. Luisa Calatayud, Marta Orts-Arroyo, Nicolás Moliner, Nadia Marino, Francesc Lloret, Rafael Ruiz-García, Giovanni De Munno, Miguel Julve|2021|Molecules|26|2792|doi:10.3390/molecules26092792