New multi stimuli-responsive organic semiconductors for smart materials

Tesis Doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Química Orgánica. Fecha de Lectura: 20-07-2021La financiación de este trabajo ha provenido del Ministerio de Economía y Competitividad (CTQ2016-78557-R y PID2019-104125RB-I00

Using phosphine ligands with a biological role to modulate reactivity in novel platinum complexes

Three platinum complexes with cis and trans configuration cis-[Pt(TCEP) 2 Cl 2 ], cis-[Pt(tmTCEP) 2 Cl 2 ] and trans-[Pt(TCEP) 2 Cl 2 ], where TCEP is tris(2-carboxyethyl)phosphine, have been synthesized and fully characterized by usual techniques including single-crystal X-ray diffraction for trans-[Pt(TCEP) 2 Cl 2 ] and cis-[Pt(tmTCEP) 2 Cl 2 ]. Here, we also report on an esterification process of TCEP, which takes place in the presence of alcohols, leading to a platinum complex coordinated to an ester tmTCEP (2-methoxycarbonylethyl phosphine) ligand. The stability in solution of the three compounds and their interaction with biological models such as DNA (pBR322 and calf thymus DNA) and proteins (lysozyme and RNase) have also been studied.This work was supported by Spanish MINECO: CTQ2015-68779R and CTQ2015-70371-RED

Donor-acceptor truxene-based porous polymers: synthesis, optoelectronic characterization and defense-related applications

Funding for open Access charge: Universidad de Málaga / CBUA. This research was funded by MICINN/AEI/ 10.13039/501100011033 (project PID2022-139548NB-I00, PID2019-104125RB-I00, and PID2020-112590GB-C22) and by Junta de Andalucía (P09FQM-4708 and P18-FR-4559). N.M.-G. and S.G.-V. contributed equally to this work. The authors would like to thank the computer resources, technical expertise and assistance provided by the SCBI (Supercomputing and Bioinformatics) center and the vibrational spectroscopy (EVI) lab of the Research Central Services (SCAI) of the University of MálagaFour donor-acceptor (D-A) polymers are synthesized by combining two different electron donors (truxene and its more electron rich triaza analogue, triindole) with an electron-deficient monomer (benzothiadiazole) through two different positions (2,7,13 or 3,8,13) and their optoelectronic properties are studied by theoretical and experimental methods. One of the polymers exhibits remarkable sensing capabilities for explosive nitraoaromatics while another demonstrated efficient photocatalytic activity in the aerobic sulfoxidation of the sulfur mustard simulant 2-chloro-ethyl ethyl sulfide (MGS) sulfoxidation. These results highlight their potential applications in defense-related areas. Moreover, the structure-performance relationships observed among the four polymers have enabled us to deepen the understanding of the mechanisms underlying the performance of these polymers in the aforementioned applications, thereby providing valuable insights to further improve their properties

Use of a fluorescent compound as a security ink component and security ink

[ES] Uso de un compuesto fluorescente como componente de tinta de seguridad y tinta de seguridad. La presente invención se refiere al uso del compuesto fluorescente de fórmula (I), cuya frecuencia de emisión varía en respuesta a distintos estímulos externos, como componente de tinta de seguridad. La presente invención también se refiere a la tinta de seguridad que comprende dicho compuesto.[EN] Use of a fluorescent compound as a component of security ink and security ink. The present invention refers to the use of the fluorescent compound of formula (I), whose emission frequency varies in response to different external stimuli, as a security ink component. The present invention also relates to the security ink comprising said compound.Peer reviewedConsejo Superior de Investigaciones CientíficasB2 Patente con examen previ

Use of a fluorescent compound as a security ink component and security ink

[ES] Uso de un compuesto fluorescente como componente de tinta de seguridad y tinta de seguridad. La presente invención se refiere al uso del compuesto fluorescente de fórmula (I), cuya frecuencia de emisión varía en respuesta a distintos estímulos externos, como componente de tinta de seguridad. La presente invención también se refiere a la tinta de seguridad que comprende dicho compuesto.[EN] Use of a fluorescent compound as a component of security ink and security ink. The present invention refers to the use of the fluorescent compound of formula (I), whose emission frequency varies in response to different external stimuli, as a security ink component. The present invention also relates to the security ink comprising said compound.Peer reviewedConsejo Superior de Investigaciones CientíficasA1 Solicitud de patente con informe sobre el estado de la técnic

Utilisation d'un composé fluorescent en tant que composant d'encre de sécurité et encre de sécurité

[EN] The present invention relates to the use of a fluorescent compound of formula (I), the emission frequency of which varies in response to different external stimuli, as a security ink component. The invention also relates to the security ink comprising said compound.[ES] La presente invención se refiere al uso del compuesto fluorescente de fórmula (I), cuya frecuencia de emisión varía en respuesta a distintos estímulos externos, como componente de tinta de seguridad. La presente invención también se refiere a la tinta de seguridad que comprende dicho compuesto.[FR] La présente invention se rapporte à l'utilisation du composé fluorescent de formule (I), dont la fréquence d'émission varie en réponse à différents stimuli externe, comme constituant d'encre de sécurité. La présente invention concerne également l'encre de sécurité qui comprend ledit composé.Peer reviewedConsejo Superior de Investigaciones CientíficasA1 Solicitud de patente con informe sobre el estado de la técnic

Highly emissive supramolecular gold(I)-BTD materials

Herein we report the synthesis of three light emitting rod-shaped gold(I) complexes by combining ethynyl-functionalized 2,1,3-benzothiadiazole (BTD), with different N-heterocyclic (imidazole, benzimidazole and phenantroimidazole) carbene gold(I) complexes. As could be determined by single crystal structure determination, the size of the N-heterocyclic carbene affects the relative disposition of the two ligands in the linear gold complexes (nearly perpendicular in the benzimidazole vs. planar in the phenantroimidazole derivative) which translates to different types of interactions between neighbouring units. In fact, the planar conformation in the more π-extended phenantroimidazole carbene allows Au(I) atoms to get sufficiently closer favouring aurophilic interactions. This compound is obtained as two different colour emitting solids which is ascribed to changes in packing modes probably leading to differences in the strength of aurophilic interactions. Interestingly, while the emission in the solid state is almost quenched, the incorporation of the compounds in polymer matrixes enhances the emissive properties of the compounds reaching near unity quantum yields

How to achieve near unity fluorescence quantum yields on gold(I) benzothiadiazole-based derivatives

TThe synthesis of three new gold(I) benzothiadiazole derivatives has been carried out by the reaction of 4-ethynyl-7-(4-nonylphenyl)benzo[c] [1,2,5]thiadiazole (L) with three different gold(I)-PR3 (PR3 = triethylphosphane (2), triphenylphosphane (3) and tri-1-naphthylphosphane (4)) sources and their light emitting properties thoroughly investigated. The new compounds display denoted luminescence properties with fluorescence quantum yields above 80% in all cases except for the complex containing the bulkiest PNaph3 phosphane. The resulting emission is mainly dominated by the organic 2,1,3-benzothiadiazole moiety (BTD) and can be modulated following different strategies. On one hand, the emission wavelength of these compounds in solution can be ca. 60 nm shifted varying the polarity of the solvents. Interestingly, quantum yields and lifetimes can be strongly increased by changing the environment conditions, from water:acetonitrile solutions to dispersion of the compounds within organic matrixes. In this way, we have been able to obtain near unity fluorescence quantum yields, with the highest values recorded for gold(I) BTD compounds. The effect of the solvents on the emission changes has been rationalized with the help of the Lippert-Mataga equation and the multiparametric Kamlet-Taft method to analyse the excited state polarity

Análisis del portafolio exportable de la compañía Nacional De Chocolates S.A. para comercializar en Canadá (Compañía Nacional de Chocolates S.A.)

151 PáginasRESUMEN: Este trabajo es un "análisis del portafolio exportable de la Compañía Nacional de Chocolates S.A. para comercializar en Canadá", el cual fue realizado por Jorge Enrique Restrepo Girón, Marcelo Peláez Echeverri y Pedro José Naranjo Toro, estudiantes de la Especialización en Gerencia de Mercados Globales de la Escuela de Ingeniería de Antioquia. En el desarrollo de este documento, se trabajó con dos asesores, el Sr. Orlando Silva como asesor Metodológico y con el Sr. Juan Felipe Naranjo, asesor Temático. Para la Compañía Nacional de Chocolates S.A., empresa perteneciente a la matriz inversionista Inversiones Nacional de Chocolates S.A y considerada como el octavo grupo de alimentos en América latina durante el año 2005, dos de sus objetivos estratégicos son: la Expansión Regional y el crecimiento rentable. Es así, como están en necesidad de buscar nuevos mercados y de desarrollar los actuales. Canadá es un país, en el que existe una gran diversidad cultural de diferentes partes del mundo y similar a los Estados Unidos, alrededor de un 5% de su población son latinoamericanos que han ingresado a este país en busca de mejores oportunidades. Todas estas culturas latinas constituyen un gran potencial de mercado para las compañías latinoamericanas que deseen conseguir una porción de mercado en este país. El equipo que realizó este análisis, decidió buscarle nuevas oportunidades a las Nacional de Chocolates para ayudarle a cumplir con dos de sus objetivos estratégicos mencionados anteriormente. Para el trabajo se hizo un análisis del Canadá, considerando su situación política, legal, comercial, sus consumidores y sus canales de distribución; así como también se determinó para la Nacional de Chocolates cual era el portafolio óptimo con el que debería ingresar a este mercado y los canales por los que debería entrar.ABSTRACT: This is a complete analysis of todays exporting portfolio of Compañía Nacional de Chocolates that can be soid in Canadá, which was done by the students Jorge Enrique Restrepo Girón, Marcelo Peláez Echeverry y Pedro José Naranjo Toro. AH of them have just finished their degree in Global Markets Management in the Escuela de Ingeniería de Antioquia. During the development of the analysis, the students had the advisary of Orlando Silva Marulanda and Juan Felipe Naranjo Mesa. The Compañía Nacional de Chocolates is part of the Holding Inversiones Nacional de Chocolates, being today the eight largest food manufacturer in Latin America. Two of its main purposes are: Regional expansion and profitable growth. In order to achieve these goals, developing today's markets and seeking new ones has become a priority. There is a huge ethnic diversity in Canada of people from ah around the globe. Similar to the United States, about 5% of the population comes from Latín America looking for better opportunities. Afi of these Latín American cultures together, become a huge business potential for south American companies that want some of the market share. The group that made the analysis decided to look for new business opportunities for the Compañía Nacional de Chocolates, that can help it fulfill the twa purposes mentioned aboye. The following topics were studied concerning Canada as a country: Economy, Pohitics, customers, distribution channels and the laws for labehing and advertising. The best exporting porifolio was chosen for opening this market as well as which distribution channel should be used for these purposes.EspecializaciónEspecialista en Gerencia de Mercados Globale