Estefanía Quintero Martos

EDUCATION

Licenciada en Química

Scopus Publications

Benzo-thia-fused [: N] thienoacenequinodimethanes with small to moderate diradical characters: The role of pro-aromaticity versus anti-aromaticity
Xueliang Shi, Estefanía Quintero, Sangsu Lee, Linzhi Jing, Tun Seng Herng, et al.
Chemical Science, 2016
Pro-aromatic Thn-TIPS exhibits distinctly different physical properties from anti-aromatic Sn-TIPS.
D-π-A Compounds with Tunable Intramolecular Charge Transfer Achieved by Incorporation of Butenolide Nitriles as Acceptor Moieties
Carlos Moreno-Yruela, Javier Garín, Jesús Orduna, Santiago Franco, Estefanía Quintero, et al.
Journal of Organic Chemistry, 2015
Chromophores where a polyenic spacer separates a 4H-pyranylidene or benzothiazolylidene donor and three different butenolide nitriles have been synthesized and characterized. The role of 2(5H)-furanones as acceptor units on the polarization and the second-order nonlinear (NLO) properties has been studied. Thus, their incorporation gives rise to moderately polarized structures with NLO responses that compare favorably to those of related compounds featuring more efficient electron-withdrawing moieties. Derivatives of the proaromatic butenolide PhFu show the best nonlinearities. Benzothiazolylidene-containing chromophores present less alternated structures than their pyranylidene analogues, and, unlike most merocyanines, the degree of charge transfer does not decrease on lengthening the π-bridge.
Structural variability in multifunctional metal xylenediaminetetraphosphonate hybrids
Rosario M. P. Colodrero, Giasemi K. Angeli, Montse Bazaga-Garcia, Pascual Olivera-Pastor, Didier Villemin, et al.
Inorganic Chemistry, 2013
Two new families of divalent metal hybrid derivatives from the aromatic tetraphosphonic acids 1,4- and 1,3-bis(aminomethyl)benzene-N,N'-bis(methylenephosphonic acid), (H2O3PCH2)2-N-CH2C6H4CH2-N(CH2PO3H2)2 (designated herein as p-H8L and m-H8L) have been synthesized by crystallization at room temperature and hydrothermal conditions. The crystal structures of M[(HO3PCH2)2N(H)CH2C6H4CH2N(H)(CH2PO3H)2(H2O)2]·2H2O (M = Mg, Co, and Zn), M-(p-H6L), and M[(HO3PCH2)2N(H)CH2C6H4CH2N(H)(CH2PO3H)2]·nH2O (M = Ca, Mg, Co, and Zn and n = 1-1.5), M-(m-H6L), were solved ab initio by synchrotron powder diffraction data using the direct methods and subsequently refined using the Rietveld method. The crystal structure of the isostructural M-(p-H6L) is constituted by organic-inorganic monodimensional chains where the phosphonate moiety acts as a bidentate chelating ligand bridging two metal octahedra. M-(m-H6L) compounds exhibit a 3D pillared open-framework with small 1D channels filled with water molecules. These channels are formed by the pillaring action of the organic ligand connecting adjacent layers through the phosphonate oxygens. Thermogravimetric and X-ray thermodiffraction analyses of M-(p-H6L) showed that the integrity of their crystalline structures is maintained up to 470 K, without significant reduction of water content, while thermal decomposition takes place above 580 K. The utility of M-(p-H6L) (M = Mg and Zn) hybrid materials in corrosion protection was investigated in acidic aqueous solutions. In addition, the impedance data indicate both families of compounds display similar proton conductivities (σ ∼ 9.4 × 10(-5) S·cm(-1), at 98% RH and 297 K), although different proton transfer mechanisms are involved.

Publications

AUTORES: Shi, X., Quintero, E., Lee, S., Jing, L., Herng, T.S., Zheng, B., Huang, K.-W., López Navarrete, J.T., Ding, J., Kim, D., Casado, J., Chi, C.
TÍTULO: Benzo-thia-fused [: N] thienoacenequinodimethanes with small to moderate diradical characters: The role of pro-aromaticity versus anti-aromaticity
REF. REVISTA/LIBRO: Chemical Science, 2016, 7(5), 3036-3046

AUTORES: Carlos Moreno-Yruela, Javier Garín, Jesús Orduna, Santiago Franco, Estefanía Quintero, Juan T. López Navarrete, Beatriz E. Diosdado, Belén Villacampa, Juan Casado, Raquel Andrew
TÍTULO: D-pi-A compounds with tunable intramolecular charge transfer achieved by incorporation of butenolide nitriles as acceptor moieties
REF. REVISTA/LIBRO: Journal of Organic Chemistry, 2015 ,80(24), 12115-12128

AUTORES: Colodrero, R.M.P.; Angeli, G.K.; Bazaga-Garcia, M.; Olivera-Pastor, P.; Villemin, D.; Losilla, E.R.; Martos, E.Q.; Hix, G.B.; Aranda, M.A.G.; Demadis, K.D.; Cabeza, A.
TÍTULO: Structural Variability in multifunctional Metal Xylenediaminetetraphosphonate Hybrids
REF. REVISTA/LIBRO: Inorganic Chemistry, 2013, 55, 8770–8783