Article
Chemistry, Inorganic & Nuclear
Simon De Kreijger, Benjamin Elias, Ludovic Troian-Gautier
Summary: Two iridium(III) binuclear photosensitizers were investigated for the photooxidation of iodide, bromide, and chloride. The excited states of the photosensitizers were efficiently quenched by the halides, and evidence of reductive excited-state electron transfer was found in solvent mixtures containing water.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Lahinakillathu Nishana, Ayyamperumal Sakthivel, M. R. Prathapachandra Kurup, Krishna K. Damodaran, Antonysamy Kulandaisamy, Sithambaresan Maheswaran
Summary: The structural characteristics of a series of copper(II) complexes were investigated using spectroscopic and analytical methods. The crystal structures of aroylhydrazone, APMB and copper complex 4 were resolved using single-crystal X-ray diffraction studies. The copper(II) complexes showed promising catalytic activity in the oxidation of cinnamyl alcohol, with complex 1 exhibiting the highest activity.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Qingqing Wen, Thayalan Rajeshkumar, Laurent Maron, Xuebing Leng, Yaofeng Chen
Summary: The first rare-earth metal complex bearing both hydrido- and imido-ligands, a hydrido- and imido-bridged dinuclear ytterbium(III) complex, was successfully synthesized via an unprecedented redox reaction. DFT calculation revealed that the N-2 release from azido compound in the presence of ytterbium(II) is kinetically facile due to cooperative effects. The reactivity investigation of the complex demonstrated redox, addition, and sigma-bond metathesis reactivities.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Inorganic & Nuclear
Rasika J. Kariyawasam, Ramin Zibaseresht, Matthew I. J. Polson, Joanna C. C. Houlihan, Jan L. Wikaira, Richard M. Hartshorn
Summary: Bis(bidentate) and bis(tridentate) Co(III) complexes of N-(2-hydroxyethyl)ethane-1,2-diamine (heen), 2[(2-aminoethyl)amino]ethan-1-olate (heen-H), or N-(2-chloroethyl)ethane-1,2-diamine (ceen) ligands have been synthesized and various reaction conditions have been established for their syntheses. They can all be ultimately derived from (OC-6-12)-[Co(heen)(2)(NO2)(2)]NO3 and provide access to the trans amine trans chloride nitrogen mustard complex, (OC-6-12)-[Co(ceen)(2)(Cl)(2)]Cl. Although complex isomeric mixtures were obtained from the reaction of (OC-6-12)-[Co(heen)(2)(NO2)(2)]NO3 under different reaction conditions, the trans amine trans chlorido configuration around the Co(III) metal centre of the (OC-6-12)-[Co(ceen)2(Cl)2]Cl complex was favored.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yuna Sato, Masaya Okamura, Shiro Hikichi
Summary: Heteroleptic and homoleptic iron(III) complexes supported by a tris(N-heterocyclic carbene) borate ligand have been prepared and characterized. The strong electron-donating character of the tris (carbene) donor was revealed through various measurements and calculations. The catalytic activity of each complex in cyclohexane oxidation was evaluated and both complexes showed high catalytic activity and selectivity, with the homoleptic complex exhibiting more metal-based reactions.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Nida Shahid, Rahul Kumar Singh, Navdeep Srivastava, Amrendra K. K. Singh
Summary: A series of Ru(III)-NHC complexes have been prepared through a base-free route. These air and moisture-stable complexes, which represent rare examples of paramagnetic Ru(III)-NHC complexes, were shown to be excellent metal precursors for the synthesis of new Ru(II)-NHC complexes. This work allows easy access to new Ru-NHC complexes for the study of new properties and novel applications.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Iakov S. Fomenko, Olga S. Koshcheeva, Nina I. Kuznetsova, Tatyana V. Larina, Marko I. Gongola, Medhanie Afewerki, Pavel A. Abramov, Alexander S. Novikov, Artem L. Gushchin
Summary: Two new isomeric complexes [CuBr2(R-bian)] (R=4-Me-Ph (1), 2-Me-Ph (2)) were synthesized and characterized. Crystal structure analysis revealed a distorted square-planar environment around the copper atom, with a significant deviation from ideal tetrahedral and square-plane geometries in complexes 1 and 2, respectively. Dimer formation through non-covalent Cu center dot center dot center dot Br interactions was observed in complex 2. Cyclic voltammetry and UV-Vis spectroscopy showed a quasi-reversible Cu(II)/Cu(I) redox event and the presence of Cu(I) species in solution. Both complexes exhibited catalytic activity for the oxidation of isopropylbenzene, with differences in the reaction mechanism and product composition depending on the oxidizing ability of the catalyst.
Article
Chemistry, Inorganic & Nuclear
Urszula K. Komarnicka, Sandra Koziel, Agnieszka Skorska-Stania, Agnieszka Kyziol, Francesco Tisato
Summary: In this study, new complexes based on ruthenium(II) and iridium(III) with phosphine ligands and phenyl rings with/without methoxy motifs were synthesized and characterized. The complexes showed high catalytic efficiency in the oxidation of NADH to NAD(+) and exhibited potential applications in biological and medical fields. Furthermore, they demonstrated redox activity and significant cytotoxicity against various cancer cell lines.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Marianna Pioli, Cecilia Loffi, Paolo Pio Mazzeo, Alessia Bacchi, Paolo Pelagatti
Summary: Two different N-substituted naphthalimide ligands have been synthesized and reacted with a cationic organometallic fragment, showing different coordination behaviors. One ligand forms a sandwich complex with six coordination sites, while the other forms two isomeric complexes with different stabilities.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Inorganic & Nuclear
Analia Mercedes Peyrot, Maria Priscila Zelaya, Pablo Albores, Florencia Fagalde
Summary: In this work, a series of new mononuclear Ru (II) complexes with chloro and aqua ligands were synthesized and characterized. The structure of [Ru(tptz)(dpp)Cl]PF6 was determined by X-ray diffraction. The aqua complexes showed catalytic activity for water oxidation at pH 1 using cerium ammonium nitrate as an oxidant. The experimental results were in good agreement with theoretical calculations.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Christina Georgakopoulou, Dimitrios Thomos, Theodoros Tsolis, Konstantinos Ypsilantis, John C. Plakatouras, Dimitris Kordias, Angeliki Magklara, Constantine Kouderis, Angelos G. Kalampounias, Achilleas Garoufis
Summary: This study synthesized and characterized novel binuclear hexa-arene-ruthenium(II) complexes and investigated their interactions with DNA and cytotoxic activities against cancer cells.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Irfan Sahin, Semih Sevim, Muhammet Kose
Summary: In this study, three half-sandwich Ru(II) complexes were synthesized and their structures and catalytic performances were investigated. The complexes exhibited high activity in transfer hydrogenation reactions.
TRANSITION METAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Suman Sinha, E. Muhammed Sahad, Rakesh Mondal, Siuli Das, Litty Thomas Manamel, Paula Brandao, Bas de Bruin, Bikas C. Das, Nanda D. Paul
Summary: In this study, a ligand-centered redox-controlled strategy was used to synthesize an unusual binuclear diradical cobalt(III) complex. The complex showed promising potential for application as a molecular memory device.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Inorganic & Nuclear
Urszula K. Komarnicka, Sandra Koziel, Barbara Pucelik, Agata Barzowska, Milosz Siczek, Magdalena Malik, Daria Wojtala, Alessandro Niorettini, Agnieszka Kyziol, Victor Sebastian, Pavel Kopel, Stefano Caramori, Alina Bienko
Summary: Novel heteronuclear Ir-III-Cu-II coordination compounds containing phosphines derived from fluoroquinolones have been synthesized and studied as potential anticancer chemotherapeutics. The compounds were characterized using various analytical techniques and their ability to accumulate in cancer cells and induce cell cycle changes was demonstrated. The study highlights the potential of these compounds as targeted cancer therapies.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Duc Hanh Nguyen, Delphine Merel, Nicolas Merle, Xavier Trivelli, Frederic Capet, Regis M. Gauvin
Summary: Neutral and ionic ruthenium and iron aliphatic (PNP)-P-H-type pincer complexes with benzyl, n-butyl or tert-butyl isocyanide ancillary ligands have been prepared and characterized. The ruthenium complexes are active in acceptorless alcohol dehydrogenative coupling reactions, with 3a-c showing higher initial activity.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Divambal Appavoo, Nandhagopal Raja, Robert Deschenaux, Bruno Therrien, Diego Carnevale
DALTON TRANSACTIONS
(2016)
Article
Biotechnology & Applied Microbiology
Doris Hinger, Susanna Graefe, Fabrice Navarro, Bernhard Spingler, Devaraj Pandiarajan, Heinrich Walt, Anne-Claude Couffin, Caroline Maake
JOURNAL OF NANOBIOTECHNOLOGY
(2016)
Article
Chemistry, Organic
Rupesh Narayana Prabhu, Rengan Ramesh
TETRAHEDRON LETTERS
(2017)
Article
Chemistry, Inorganic & Nuclear
Mohamed Subarkhan Mohamed Kasim, Saranya Sundar, Ramesh Rengan
INORGANIC CHEMISTRY FRONTIERS
(2018)
Article
Chemistry, Multidisciplinary
Subramanian Muthumari, Rengan Ramesh
Article
Chemistry, Applied
K. Yogesh Kumar, Himani Saini, D. Pandiarajan, M. K. Prashanth, L. Parashuram, M. S. Raghu
Article
Chemistry, Inorganic & Nuclear
Neelakandan Devika, Subbiah Ananthalakshmi, Nandhagopal Raja, Gajendra Gupta, Bruno Therrien
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2019)
Article
Chemistry, Inorganic & Nuclear
Sundarraman Balaji, Gunasekaran Balamurugan, Rengan Ramesh, David Semeril
Summary: A convenient protocol for the one-pot synthesis of quinazolin-4(3H)-ones using palladium(II) complexes via dehydrogenative coupling of benzyl alcohols and 2-aminobenzamide has been described. New structurally related Pd(II) N and O chelating complexes were designed and synthesized, with their formation confirmed by analytical and spectral methods. The study also confirmed the square-planar geometry around the palladium(II) ion and successfully achieved a wide range of substituted quinazolinones.
Article
Chemistry, Physical
Gunasekaran Balamurugan, Rengan Ramesh
Summary: A new nickel complex catalyst is used for the synthesis of (E)-olefins via greener acceptorless dehydrogenative coupling methodology. This simple and efficient protocol is applicable to a wide range of substrates, including drug intermediates.
Article
Chemistry, Inorganic & Nuclear
Abirami Arunachalam, Ramesh Rengan, Devan Umapathy, Antony Joseph Velanganni Arockiam
Summary: This study describes the synthesis and characterization of six new arene ruthenium(II) complexes containing biphenyl benzhydrazone ligands and evaluates their antiproliferative properties. The complexes demonstrated significant cytotoxicity against cancer cells and have the potential to be used as alternate anticancer drugs to platinum drugs.
Article
Chemistry, Inorganic & Nuclear
Prabaharan Ramya, Rengan Ramesh, Poomani Kumaradhas
Summary: This research aims to find effective anticancer agents with lesser side-effects. Three new Ni(II) complexes containing benzhydrazide ligands were characterized and studied for their cytotoxic efficiency against cervical and colon cancer cells. The results showed that all three complexes displayed good cytotoxicity, with complex 3 showing the highest cytotoxicity against colon cancer cells. Apoptotic cell death was confirmed through various staining methods and cellular assays.
INORGANICA CHIMICA ACTA
(2023)
Article
Chemistry, Inorganic & Nuclear
Arunachalam Abirami, Umapathy Devan, Rengan Ramesh, Arockiam Antony Joseph Velanganni, Jan Grzegorz Malecki
Summary: This study synthesized six arene ruthenium(ii) complexes and evaluated their inhibitory effects on breast cancer cells. The complexes exhibited good antiproliferative activities by inducing apoptotic cell death through an intrinsic mitochondrial pathway.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Thangavel Sathiya Kamatchi, Mohamed Kasim Mohamed Subarkhan, Rengan Ramesh, Hangxiang Wang, Jan Grzegorz Malecki
DALTON TRANSACTIONS
(2020)
Article
Crystallography
Neelakandan Devika, Nandhagopal Raja, Subbiah Ananthalakshmi, Bruno Therrien
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2015)
Article
Crystallography
Neelakandan Devika, Nandhagopal Raja, Subbiah Ananthalakshmi, Bruno Therrien
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2015)
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Leo Mandic, Ivan Ljubic, Iva Dzeba
Summary: In this study, a combined experimental and computational approach was used to investigate the photoexcitation and photodegradation mechanisms of Doxazosin (DOX). The results provide valuable insights into the primary events following the photoexcitation of DOX and its potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiufeng Wang, Yao Jin, Wenhui Ai, Siqi Wang, Zhiqing Zhang, Ting Zhou, Fang Wang, Guodong Zhang
Summary: This study successfully synthesized near infrared fluorescence Ag2S quantum dots (QDs) and developed a dual-mode sensor for sulfide anion using the excellent oxidase-like characteristics of manganese dioxide (MnO2) nanosheets. The sensor showed a wider detection range, higher sensitivity, and shorter reaction time, making it suitable for highly selective detection of sulfide in different concentration ranges.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yafei Li, Yanming Ma, Chuantao Zheng, Di Yu, Lien Hu, Shuo Yang, Fang Song, Yadan Li, Shuanghai Liu, Zhanrui Zhang, Yu Zhang, Yiding Wang, Frank K. Tittel
Summary: To effectively monitor gas explosion and coal spontaneous combustion in coal mine, an intrinsically safe and explosion-proof dual-gas sensor system was developed for methane (CH4) and carbon monoxide (CO) measurement. The system achieved different measurement ranges using laser scanning and gas cells, and improved stability and accuracy through gas pre-treatment and temperature compensation algorithm.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Pei-Rong Chen, Li-Kang Chu
Summary: In this study, the hydrates of glyoxal were investigated using infrared absorption spectrometry. The results showed that at low concentrations, glyoxal mainly exists as monomeric dihydrate. These findings provide suitable detection windows for further research on the roles of glyoxal and its hydrates in atmospheric and aerosol chemistry, as well as the relevant reaction kinetics.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Nichole O'Neill, Thamires A. Lima, Fabio Furlan Ferreira, Nicolas J. Alvarez, Reinhard Schweitzer-Stenner
Summary: This study determines the main fibril axis of GHG gel-forming fibrils using various techniques and compares the results with simulated data. The analysis suggests that the hydrophobic xz-surfaces of GHG fibrils could be a good target for the adsorption of hydrophobic drugs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengyuan Liu, Hanchuang Zhu, Yikun Fang, Caiyun Liu, Xinke Li, Xiaohui Zhang, Lixue Ma, Kun Wang, Miaohui Yu, Wenlong Sheng, Baocun Zhu
Summary: ABHS is an efficient fluorescent probe that can accurately and sensitively detect Al3+ with strong resistance to interference. It also demonstrates excellent detection and imaging capabilities in complex real samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Anindita Bhatta, Jahnabi Upadhyaya, Dipak Chamlagai, Lincoln Dkhar, Pynskhemborlang T. Phanrang, Mohan Rao Kollipara, Sivaprasad Mitra
Summary: Derivatives of thiazole-pyrazole fused benzo-coumarin compounds were synthesized and their photophysical properties were investigated. The synthesized coumarin compounds showed potential as therapeutic agents for Alzheimer's disease, inhibiting acetylcholinesterase activity. The presence of human serum albumin was found to affect the inhibition activity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yongwei Duan, Quancheng Liu, Yiju Zhu, Qi Zhang, Xiaohui Duan, Hu Deng, Liping Shang
Summary: In this study, the phase transition of CL-20 was observed using terahertz spectroscopy, and quantum chemical calculations were employed to analyze the vibrations. The results indicated changes in the vibrations of CL-20 before and after phase transition.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yuefeng Gao, Sai Xu, Baojiu Chen
Summary: This study synthesized Cs2NaInCl6 nanocrystals co-doped with Sb3+ and Tb3+ ions as probes for copper ions detection in lubricating oil. The introduction of Sb3+ effectively reduced the band gap of the host material and enabled energy transfer pathway for Tb3+ emission. The doped Tb3+ ions resulted in the suppression of emission due to electron transfer. The Cs2NaInCl6: 2.5 %Sb3+, 40 %Tb3+ NCs exhibited superior sensitivity and selectivity for copper ions detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu Liu, Yue Zhang, Changyao Liu, Ce Wang, Baocai Xu, Li Zhao
Summary: A highly sensitive detection platform for heparin was developed using a cationic fluorescent dye (cresyl violet acetate) as a fluorescence probe. The platform demonstrated high selectivity towards heparin and achieved detection in both HEPES solution and serum.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lopamudra Roy, Nivedita Pan, Susmita Mondal, Ria Ghosh, Md. Nur Hasan, Neha Bhattacharyya, Soumendra Singh, Kallol Bhattacharyya, Arpita Chattopadhyay, Samir Kumar Pal
Summary: The study focuses on the interaction between reactive oxygen species (ROS) and a spectroscopic probe called Rose Bengal (RB), encapsulated in nanoscopic sodium dodecyl sulphate (SDS) micelles and entrapped in microscopic nylon 66 solid matrix. The research demonstrates efficient interaction between ROS and RB-SDS, and investigates the mechanism of hydroxyl radicals generation. Based on these findings, a prototype device utilizing RB embedded in a nylon thin film for quantification of ROS in extracellular fluids and food materials was developed.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiaosong Sun, Qihao Cui, Wenyue Dong, Qian Duan, Teng Fei
Summary: Conjugated porous polymers (CPPs) are promising sensing materials and their application in aqueous media is limited. In this study, we synthesized CPPs with porous structure and prepared nanoparticles, enabling efficient photoluminescence sensing of nitroaromatic explosives in aqueous phase.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maria Cristina Caggiani, Germana Barone, Paolo Mazzoleni
Summary: Raman spectroscopy is commonly used for studying glassy materials in cultural heritage, but it is more difficult to interpret the spectra and apply the technique with portable instruments. In contrast, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) can be used in archaeometric investigations as it is portable and non-invasive. However, there is limited application of this technique to historical glasses. This exploratory work demonstrates the potential of DRIFTS, in combination with portable X-ray Fluorescence (pXRF) and EDS microanalyses, for studying the composition and alteration of glass samples in cultural heritage.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
