Article
Chemistry, Physical
Angela Mesias-Salazar, Yersica Rios Yepes, Javier Martinez, Rene S. Rojas
Summary: A series of alkyl aluminum adducts supported by benzodiimidazole-diylidene ligands were synthesized and used as catalysts for the efficient formation of cyclic carbonates. Among them, adduct 1 showed the highest efficiency in synthesizing various monosubstituted cyclic carbonates with excellent conversions and yields under specific conditions.
Article
Chemistry, Multidisciplinary
Irene Contento, David Hermann Lamparelli, Antonio Buonerba, Alfonso Grassi, Carmine Capacchione
Summary: The newly developed family of chromium complexes can be used for the cycloaddition of epoxides with CO2, showing high activity and selectivity for the synthesis of cyclic carbonates.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Inorganic & Nuclear
Pooja Rana, Bhawna Kaushik, Rashmi Gaur, Sriparna Dutta, Sneha Yadav, Kanika Sotanki, Bhavya Arora, Ankush Biradar, Manoj B. Gawande, R. K. Sharma
Summary: This work presents a noble metal free heterogeneous photocatalyst that enables direct functionalization of (het)arenes and solvent-free CO2 capture at room temperature and under pressure. The photocatalyst, based on Earth-abundant cobalt(iii), exhibits fascinating properties and shows high efficiency for selective conversions of aryldiazonium salts and carbon dioxide to valuable chemicals.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Angela Pintus, Sebastiano Mantovani, Alessandro Kovtun, Giulio Bertuzzi, Manuela Melucci, Marco Bandini
Summary: Gram-scale synthesis and purification of new covalently modified GO-guanidine materials have been achieved, which demonstrate their application in the fixation of CO2 into cyclic carbonates. The protocol is characterized by mild operating conditions, high yields, wide scope, and recoverability/reusability of the material.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Reem H. H. Alzard, Lamia A. A. Siddig, Abdalla S. S. Abdelhamid, Alejandro Perez Paz, Ha L. L. Nguyen, K. Sethupathi, P. K. Sreejith, Ahmed Alzamly
Summary: Two new isostructural carboxylate-bridged lanthanide ribbons were synthesized and characterized. The lanthanide coordination polymers (Ln-CPs) exhibited linear ribbon-like structures and showed high thermal and chemical stabilities. They also demonstrated photocatalytic ability and exhibited antiferromagnetic properties.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Wenxiu Liu, Lei Li, Wei Shao, Hui Wang, Yun Dong, Ming Zuo, Jiandang Liu, Hongjun Zhang, Bangjiao Ye, Xiaodong Zhang, Yi Xie
Summary: The cycloaddition of CO2 with epoxides is a promising pathway for CO2 utilization. By designing catalysts with rich active sites for boosting epoxide adsorption and C-O bond cleavage, efficient cyclic carbonate generation can be achieved. In this study, FeOCl nanosheets with Fe-Cl vacancy clusters are used as a model to demonstrate enhanced cyclic carbonate generation through strengthened epoxide adsorption and promoted C-O bond cleavage.
Article
Biochemistry & Molecular Biology
Jose J. Delgado-Marin, Iris Martin-Garcia, David Villalgordo-Hernandez, Francisco Alonso, Enrique Ramos-Fernandez, Javier Narciso
Summary: One potential way to utilize CO2 is to react it with organic epoxides to produce cyclic carbonates. However, no efficient and selective heterogeneous catalyst has been discovered yet. In this study, cobalt and zinc-based zeolitic imidazole frameworks (ZIFs) were explored as catalysts for this reaction. Modified ZIF-8 and ZIF-67 catalysts were prepared and showed excellent catalytic performance in the cycloaddition of CO2 with epichlorohydrin. Notably, these reactions occurred under mild conditions without the need for co-catalysts.
Article
Chemistry, Physical
Hermann Detz, Valeria Butera
Summary: In this study, a detailed DFT investigation was conducted to elucidate the mechanistic details of CO2 conversion into propylene carbonate (PC) catalyzed by bio-mass derived deep eutectic solvents (bio-DESs). The calculations revealed the beneficial effect of hydrogen bonds in activating the epoxide, but also showed that they stabilize the negative charge of intermediates and reduce the nucleophilicity of the oxygen atom involved in the final ring closure step. Additionally, hydrogen bonds were found to hinder the release of the PC product. These theoretical results provide valuable insights for understanding CO2 fixation with bio-DESs and can guide the development of more efficient bio-catalysts.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Daoqing Chen, LongChao Du, Jie Yang
Summary: Carbon dioxide (CO2) can be effectively used in the production of polycarbonate (PPC) and cyclic carbonate (CPC) through copolymerization with epoxides. The catalytic performance of photosensitive salenCo(iii) complexes in the copolymerization of CO2 and propylene oxide (PO) was investigated. The results show that the efficiency of the salenCo(iii) catalyst increases with the expansion of the photosensitive conjugate system, and the introduction of light can improve the catalytic efficiency.
Article
Chemistry, Inorganic & Nuclear
Sergey E. Lyubimov, Valentina A. Olshevskaya, Andrei V. Zaitsev, Alexander A. Korlyukov, Anastasia A. Zvinchuk, Polina V. Cherkasova, Biswajit Chowdhury
Summary: A new method for synthesizing carborane-containing carbonates was developed by reacting CO2 with corresponding epoxides. These carbonates can serve as precursors for advanced heat- and impact-resistant polycarbonates and agents for boron neutron capture therapy.
Article
Chemistry, Physical
Lin Gong, Ji Sun, Yousong Liu, Guangcheng Yang
Summary: This study demonstrates the efficient use of solar energy to drive CO2 cycloaddition conversion under mild reaction conditions using a Zn single-atom-loaded N-doped carbon catalyst. The catalyst shows high catalytic activity with almost complete CO2 conversion yields, providing unprecedented findings for the future design and application of single-atom catalysts in photoinduced CO2 cycloaddition catalysis or other catalytic reactions.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Inorganic & Nuclear
Julia P. S. C. Leal, Werberson A. Bezerra, Rafael P. das Chagas, Chris H. J. Franco, Felipe T. Martins, Alexandre M. Meireles, Felipe C. T. Antonio, Paula Homem-de-Mello, Thiago T. Tasso, Jorge L. S. Milani
Summary: A series of porphyrazines were synthesized and tested as catalysts for the cycloaddition of CO2 to epoxides, with M(II)Pz bearing trifluoromethyl groups showing the best conversion. The type and concentration of cocatalyst had a notable effect on reaction yields, and the interaction between metal and cocatalyst may govern the reaction rate, as suggested by experimental results.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Yersica Rios Yepes, Angela Mesias-Salazar, Alexandra Becerra, Constantin G. Daniliuc, Alberto Ramos, Rafael Fernandez-Galan, Antonio Rodriguez-Dieguez, Antonio Antinolo, Fernando Carrillo-Hermosilla, Rene S. Rojas
Summary: A series of trisubstituted guanidine ligands were used to synthesize mono- and dinuclear asymmetric methyl aluminum guanidinato compounds, which were tested as catalysts for the fixation of carbon dioxide with epoxides to give cyclic carbonates. The dinuclear complex 6 was found to be the most efficient and active catalyst for the synthesis of monosubstituted carbonates, exhibiting excellent conversions and selectivities. Additionally, the formation of some disubstituted cyclic carbonates using this dinuclear aluminum catalyst was also studied.
Article
Chemistry, Inorganic & Nuclear
Hua-Qing Yin, Ming-Yang Cui, Hao Wang, Yuan-Zhao Peng, Jia Chen, Tong-Bu Lu, Zhi-Ming Zhang
Summary: Carbon dioxide cycloaddition into fine chemicals is a promising technology for solving energy crisis and environmental issues. This study investigates the effects of metal type on the performance of CO2 cycloaddition using isostructural MOF-919-Cu-Fe and MOF-919-Cu-Al as models. The results reveal that MOF-919-Cu-Fe with exposed Fe and Cu Lewis acid sites exhibits significantly higher conversion and selectivity compared to MOF-919-Cu-Al. The mechanism suggests that the exposed Fe3+ sites facilitate the ring opening of epoxide and CO2 activation, promoting the CO2 cycloaddition reaction.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Malay Dolai, Surajit Biswas, Eufemio Moreno-Pineda, Wolfgang Wernsdorfer, Mahammad Ali, Razan A. Alshgari, Saikh Md. Wabaidur, Ashutosh Ghosh
Summary: Two dinuclear complexes were synthesized and characterized, and their catalytic activity in the carbon dioxide insertion reaction into epoxides for the formation of organic cyclic carbonates was studied. The complexes showed efficient catalytic activity with high yields and turnover numbers.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Materials Science, Biomaterials
Felipe de la Cruz-Martinez, Roger Bresoli-Obach, Ivan Bravo, Carlos Alonso-Moreno, Daniel Hermida-Merino, Johan Hofkens, Agustin Lara-Sanchez, Jose A. Castro-Osma, Cristina Martin
Summary: Population growth, resource depletion, and toxic chemical production underscore the importance of exploring new smart materials that are inexpensive, biodegradable, and renewable. Metal-free ring-opening copolymerization of biomass carvone-based monomers is considered a sustainable approach to achieve these goals, especially in the production of non-conventional luminescent biopolymers.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Immunology
Syong H. Nam-Cha, Elena Dominguez-Jurado, Selena L. Tinoco-Valencia, Ramon Perez-Tanoira, Noelia Morata-Moreno, Rocio Alfaro-Ruiza, Agustin Lara-Sanchez, Jaime Esteban, Rafael Lujan, Carlos Alonso-Moreno, Pedro Segui, Alberto Ocana, Angel Lopez Gonzalez, John J. Aguilera-Correa, Francisco C. Perez-Martinez, Milagros Molina Alarcon
Summary: This study aimed to translate clinical research outcomes based on metallodrugs into clinical practice for the treatment of MRSA. The novel metallodrug 2P-Pt showed antibacterial effect against MRSA and inhibited biofilm formation. These findings suggest that 2P-Pt may be a promising therapeutic alternative for MRSA infections.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Francisca Werlinger, Renato Caprile, Valentino Cardenas-Toledo, Bastian Tarraff, Angela Mesias-Salazar, Rene S. Rojas, Javier Martinez, Oleksandra S. Trofymchuk, Mario E. Flores
Summary: This article discusses the challenge of transforming cooking oils and their waste into polyesters through circular chemistry. The researchers used epoxidized olive oil obtained from cooking olive oil and various cyclic anhydrides as raw materials to prepare new bio-based polyesters. The synthesis of these materials required the use of specific reaction conditions and catalysts. The obtained biopolyesters were characterized using various analytical techniques. The transformation of natural-based compounds, such as olive oil, into high-value products is an innovative and challenging task.
Review
Optics
Javier Martinez, Igor Osorio-Roman, Andres F. Gualdron-Reyes
Summary: The growing demand for faster data transference and communication has led to the development of faster and more efficient communication network-based technologies, such as wireless systems and visible light communication (VLC) processes. The use of light converters, such as phosphor materials, can efficiently convert blue light into different colors for higher bandwidth values and faster data/information transmission. Recent advances in luminescent materials, including polymers, organic molecules, and semiconductor nanocrystals, have improved the photophysical properties and carrier recombination dynamics, offering enhanced VLC process for efficient optical communication applications.
Review
Chemistry, Multidisciplinary
Marina Perez-Jimenez, Helena Corona, Felipe de la Cruz-Martinez, Jesus Campos
Summary: In this review, we discuss the strategy of donor-acceptor interactions for capturing and activating carbon dioxide. We categorize the systems into metal-free examples, main group-transition metal combinations, and transition metal heterobimetallic complexes, and summarize one hundred compounds with cooperative CO2 activation by donor-acceptor interactions. This perspective provides an overview of the wide variety of structural motifs and assesses the limitations and prospects for developing catalytic protocols for CO2 functionalization.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Review
Energy & Fuels
Francisca Werlinger, Camilo Segura, Javier Martinez, Igor Osorio-Roman, Danilo Jara, Seog Joon Yoon, Andres Fabian Gualdron-Reyes
Summary: Photovoltaics are emerging as a promising alternative energy source, utilizing solar energy potential. Different generations of solar devices, such as organic molecules, metal chalcogenides, and halide perovskites, have been developed to improve light absorption capability and electricity production. However, the commercialization of these solar cells is hindered by issues like degradation of the active layer, intrinsic defect sites, and material toxicity. This review highlights current progress in efficient photomaterials for high-performance solar cells and approaches to enhance stability and performance.
Article
Biochemistry & Molecular Biology
Borja Diaz de Grenu, Diego M. Fernandez-Aroca, Juan A. Organero, Gema Dura, Felix Angel Jalon, Ricardo Sanchez-Prieto, M. Jose Ruiz-Hidalgo, Ana Maria Rodriguez, Lucia Santos, Jose L. Albasanz, Blanca R. Manzano
Summary: Compound 6, a new derivative of aromatase inhibitors, exhibits higher inhibitory activity and potent cytostatic behavior compared to established inhibitors, making it a promising candidate for hormone-dependent cancer treatment.
JOURNAL OF BIOLOGICAL INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Marta Navarro, Andres Garces, Luis F. Sanchez-Barba, David Gonzalez-Lizana, Agustin Lara-Sanchez
Summary: The fixation of CO2 into cyclic carbonates is important for the synthesis of organic molecules of industrial interest. In this study, zinc-based complexes with sterically demanding scorpionate ligands were prepared and used as catalysts for CO2 fixation. These complexes, in combination with larger ionic radius-based co-catalysts, showed high activity and selectivity for the conversion of CO2 into cyclic carbonates. The systems developed in this study are sustainable, inexpensive, and environmentally friendly.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Marc Martinez de Sarasa Buchaca, Felipe de la Cruz-Martinez, Luis F. F. Sanchez-Barba, Juan Tejeda, Ana M. M. Rodriguez, Jose A. Castro-Osma, Agustin Lara-Sanchez
Summary: Ring-opening copolymerization reactions of epoxides, carbon dioxide and cyclic esters using bimetallic chloride indium complexes as catalysts were conducted under mild reaction conditions. The catalysts exhibited high catalytic activity and selectivity in the absence of a co-catalyst, leading to the formation of poly(cyclohexene carbonate) (PCHC). Furthermore, polyester-polycarbonate copolymers poly(lactide-co-cyclohexene carbonate) (PLA-co-PCHC) were synthesized via a one-pot one-step route without the use of a co-catalyst. The copolymers showed different thermal properties by adjusting the CO2 pressure and monomer feed.
DALTON TRANSACTIONS
(2023)
