Article
Biochemistry & Molecular Biology
Valeria Ferretti, Cristina P. Matos, Catarina Canelas, Joao Costa Pessoa, Ana Isabel Tomaz, Radoslaw Starosta, Isabel Correia, Ignacio E. Leon
Summary: Due to the prevalence of cancer diseases, new therapeutic options are urgently needed. This study reports the synthesis and characterization of mixed-ligand Fe(III)-aminophenolate complexes, which showed high affinity for biomolecules and demonstrated significant activity in various human cancer cell lines.
JOURNAL OF INORGANIC BIOCHEMISTRY
(2022)
Article
Chemistry, Applied
Marcel Annereau, Franck Martial, Jeremy Forte, Geoffrey Gontard, Sebastien Blanchard, Heloise Dossmann, Michele Salmain, Vincent Corce
Summary: A series of manganese(I) tricarbonyl complexes were synthesized and characterized, which could be easily obtained from a common dimeric structure. These complexes, when reacted with imidazole derivatives, led to the formation of monomeric complexes with various functional groups. Photoactivation of these complexes resulted in the release of CO, with the mechanism of CO release explored through spectroscopic and computational methods. A manganese complex containing a more elaborate imidazole ligand was successfully synthesized, allowing for its direct incorporation in peptides.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Sarah Kromer, Subhangi Roy, James E. Yarnell, Chelsea M. Taliaferro, Felix N. Castellano
Summary: Dinuclear d(8) Pt(ii) complexes exhibit photophysical properties determined by the distance between the two Pt(ii) centres, showing either metal-to-ligand-(MLCT) or metal-metal-ligand-to-ligand charge transfer (MMLCT) transitions. The novel dinuclear complexes with 8-hydroxyquinoline as the bridging ligand possess similar photophysics to the mononuclear model chromophore. TD-DFT calculations confirm the mixed LC/MLCT nature of the lowest energy absorption and the limited quantum yields of the (LC)-L-3 photoluminescence for these complexes.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Feriannys Rivas, Andrea Medeiros, Cristina Quiroga, Diego Benitez, Marcelo Comini, Esteban Rodriguez-Arce, Ignacio Machado, Hugo Cerecetto, Dinorah Gambino
Summary: The study synthesized new Pd-Fe heterobimetallic compounds that showed promising activity against Trypanosoma brucei. A quantitative structure-activity relationships study highlighted the importance of electronic effects, lipophilicity, and metal type in determining the anti-T. brucei activity of compounds.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Maxim A. Faraonov, Evgeniya I. Yudanova, Alexey V. Kuzmin, Ilya A. Yakushev, Salavat S. Khasanov, Akihiro Otsuka, Hideki Yamochi, Hiroshi Kitagawa, Dmitri V. Konarev
Summary: Complexes 1 and 2 were obtained by reducing indium(III) phthalocyanine in the presence of transition metal carbonyls. Complex 1 contains dianionic phthalocyanine while complex 2 contains a heterobimetallic anion. The optical spectra, crystal structures and magnetic measurements support the assignments for 1 and 2.
DALTON TRANSACTIONS
(2023)
Review
Quantum Science & Technology
Hongrun Zhang, Haifeng Feng, Xun Xu, Weichang Hao, Yi Du
Summary: This paper reviews recent experimental progress on binary kagome metals using STM, STS, and ARPES, highlighting the electronic structure features of flat bands and Dirac cones in 2D kagome materials. The interplay between frustrated kagome geometry, frustrated magnetism, and topological magnetism in these compounds opens new opportunities for research on strongly correlated topological kagome magnetic materials.
ADVANCED QUANTUM TECHNOLOGIES
(2021)
Article
Materials Science, Multidisciplinary
Ayhan Ungordu
Summary: The metallic complexes containing 8-hydroxyquinoline were theoretically designed to investigate their optoelectronic properties and propose the best structure for devices like OLED. The transport properties of these complexes were determined using the NEGF method, and the best candidate for electronic devices such as nanowires was identified. The compounds studied in this research are considered excellent candidates for next-generation optoelectronic and electronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Lei Wang, Reza Darvishi Kamachali
Summary: This research utilized a density-based model to calculate multi-component grain boundary phase diagrams and studied the Fe-Mn-Cr, Fe-Mn-Ni, Fe-Mn-Co, Fe-Cr-Ni, and Fe-Cr-Co alloy systems. The study found that despite solute segregation enrichment, a grain boundary may have a lower solubility limit than the bulk, promoting interfacial chemical decomposition.
Article
Nanoscience & Nanotechnology
Peng Chen, Jia Cheng, Yuanjun Liu, Xiaofang Cheng, Junjie Mao, Xin Chen, Weiqi Wang, Xiaoping Shen, Xiaoqi Fu, Guoxing Zhu
Summary: In this study, Fe/Co-based 8-hydroxyquinoline compounds were used as precatalytic electrode for oxygen evolution, achieving high catalytic activity with an overpotential of 247 mV at 10 mA cm(-2) in 1.0 M KOH. The phase transformation of the catalytic electrode during OER operation was carefully investigated, providing insights for the understanding of electrocatalyst activation and development of advanced electrocatalysts.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Cuiju Yu, Qingqing Feng, Xingxing Li, Jinlong Yang
Summary: This study reveals the significant influence of the spinterface between magnetic electrodes and molecules on spin filtering efficiency through first-principles calculations. The results show that interface configurations can modulate and reverse the spin polarization of tunnelling electrons. The performance of single molecule spintronic devices, such as the spin filtering channel, can be flexibly tuned through suitable interface design.
Article
Chemistry, Multidisciplinary
Qian-Qian Su, Qiong Yuan, Xiao-Fan Wu, Si-Huai Chen, Jing Xiang, Xin-Xin Jin, Li-Xin Wang, Bing-Wu Wang, Song Gao, Tai-Chu Lau
Summary: A pair of structurally-similar and stable 8-coordinate high-spin Fe(ii) and Fe(iii) compounds have been obtained, both of which exhibit field-induced slow magnetic relaxation behavior. The Fe(iii) compound is the first example of 8-coordinate Fe(iii) single-molecule magnets (SMM).
CHEMICAL COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Avinash Kotian, Vinayak Kamat, Krishna Naik, Dhoolesh G. Kokare, Karthik Kumara, Krishnappagowda Lokanath Neratur, Vijay Kumbar, Kishore Bhat, Vidyanand K. Revankar
Summary: This paper investigates the p-halo N4-phenyl substituted thiosemicarbazones derived from 8-hydroxyquinoline, their crystal structures, spectral characterization, and in vitro cytotoxic studies of Co(III), Ni(II) and Cu(II) complexes. The complexes show enhanced antiproliferative activity against MCF-7 breast cancer cell lines, especially the Co(III) complexes displaying a roughly two fold increase in activity compared to the standard drug, Paclitaxel. Additionally, fluorescence microscopy images suggest an apoptotic mode of cell death.
BIOORGANIC CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
A. Martinelli, P. Carretta, M. Moroni, S. Sanna
Summary: High-resolution synchrotron x-ray powder diffraction analysis of selected members of the La(Fe, Mn)As(O0.89F0.11) system revealed that the tetragonal to orthorhombic structural transition in the LaFeAs(O0.89F0.11) phase can be gradually recovered by very light Mn substitution, while simultaneously suppressing superconductivity and restoring magnetic ordering. Incommensurate satellite peaks develop within different thermal ranges, indicating the presence of charge density waves characterized by distinct propagation wave vectors, as well as multiple incommensurate structural transitions that disappear after the completion of dissymmetrization. The thermal evolution of satellite reflections suggests a strong competition between charge density waves and the superconducting state.
Article
Chemistry, Inorganic & Nuclear
Yan Yang, Zhen Zhou, Zu-Zhuang Wei, Qi-Pin Qin, Lin Yang, Hong Liang
Summary: The discovery of seven lanthanide(III) metal complexes with enhanced cancer chemotherapeutic properties, especially Ln1, has shown promising results in inhibiting cisplatin-resistant lung cancer cells in vitro and in vivo. These complexes exhibited high antiproliferative activity and low toxicity to normal cells.
DALTON TRANSACTIONS
(2021)
Article
Multidisciplinary Sciences
Yuguang Pu, Duncan Moseley, Zhen He, Krishna Chaitanya Pitike, Michael E. Manley, Jiaqiang Yan, Valentino R. Cooper, Valerie Mitchell, Vanessa K. Peterson, Bernt Johannessen, Raphael P. Hermann, Peng Cao
Summary: Researchers have developed a bottom-up method for synthesizing rocksalt high-entropy oxides (HEOs) containing Mn and Fe. They investigated the crystal structure and random cation-site occupancy of FeO-HEO, showing improved structural robustness and the viability of an oxygen sublattice as a buffer layer. Compositional analysis revealed the valence and spin state of the iron species, and the antiferromagnetic order of FeO-HEO below a transition temperature around 218 K was reported, along with predictions for the phase stability conditions of Mn and Fe-containing HEOs.