Article
Chemistry, Physical
Radha Mishra, Kalpna Jain, Vinay Prabha Sharma, Shyam Kishor, Lavanya M. Ramaniah
Summary: A set of copper dye complexes with different ancillary ligands were investigated for their potential use as sensitizers in DSSCs. It was found that substituting the thiophene group in the ancillary ligand and enhancing conjugation in the anchoring ligand can increase the light harvesting efficiency, making the dmp-based dyes with thiophene substitution the most effective sensitizers.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Daniele Franchi, Valentina Leandri, Angela Raffaella Pia Pizzichetti, Bo Xu, Yan Hao, Wei Zhang, Tamara Sloboda, Sebastian Svanstrom, Ute B. Cappel, Lars Kloo, Licheng Sun, James M. Gardner
Summary: A series of heteroleptic Cu(I) diimine complexes were self-assembled on TiO2 surfaces as dyes for dye-sensitized solar cells, with the performance of the complexes assessed based on their respective ancillary ligands. Optical properties and solar cell performance indicated that ancillary ligands with bulky substituents protect the Cu(I) metal center and enhance solar cell performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Matz Liebel, Franco V. A. Camargo, Giulio Cerullo, Niek F. van Hulst
Summary: Scientists have successfully addressed the challenge in the field of nanoscale imaging by combining concepts of ultrafast spectroscopy, wide-field nanoscopy, and digital holography. They have introduced an ultrafast holographic transient microscope for wide-field transient nanoscale imaging and demonstrated time-resolved spectroscopy of gold nanoparticles.
Article
Chemistry, Inorganic & Nuclear
Jungkweon Choi, Mina Ahn, Jae Hyuk Lee, Doo-Sik Ahn, Hosung Ki, Inhwan Oh, Chi Woo Ahn, Eun Hyuk Choi, Yunbeom Lee, Seonggon Lee, Jungmin Kim, Dae Won Cho, Kyung-Ryang Wee, Hyotcherl Ihee
Summary: The study found that heteroleptic metal complexes exhibit more complex excited state relaxation dynamics, which are attributed to their heteroleptic nature. The fast dynamics may originate from energy transfer between two different types of ligands, while the rapid internal conversion process is likely due to a large nonadiabatic coupling and a small energy gap between the two states.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Multidisciplinary Sciences
D. Mayer, F. Lever, D. Picconi, J. Metje, S. Alisauskas, F. Calegari, S. Duesterer, C. Ehlert, R. Feifel, M. Niebuhr, B. Manschwetus, M. Kuhlmann, T. Mazza, M. S. Robinson, R. J. Squibb, A. Trabattoni, M. Wallner, P. Saalfrank, T. J. A. Wolf, M. Guehr
Summary: Tracking the charge flow in photoexcited molecules using time-resolved X-ray photoelectron spectroscopy allows for real-time observation of changes in charge density and reveals the dynamics of electron motion. This provides important insights into photophysical and photochemical processes and is a valuable tool for studying molecular dynamics.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Tomohiro Ogawa, Narayan Sinha, Bjorn Pfund, Alessandro Prescimone, Oliver S. Wenger
Summary: Square-planar NiII complexes and their electronically excited states are important in cross-coupling catalysis. Creating coordination environments that extend the lifetimes of 3MLCT states improves the photophysical properties of these complexes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Adam D. Wright, Leonardo R. Buizza, Kimberley J. Savill, Giulia Longo, Henry J. Snaith, Michael B. Johnston, Laura M. Herz
Summary: The study investigates the evolution of photoexcited charge carriers in Cs2AgBiBr6 and reveals rapid localization of free carriers in an intrinsic small polaronic state, induced by strong electron-phonon coupling. Additionally, temperature-activated mobilities and broad emission from color centers were observed, suggesting a complex charge carrier dynamics in the material.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Physical
Masashi Sanga, Kosuke Nakamura, Munetaka Iwamura, Koichi Nozaki, Hiroyuki Takeda, Yu Monma, Osamu Ishitani
Summary: In this work, the emission spectra of Cu(i)(dmp)(P)2+ complexes were studied using femtosecond fluorescence up-conversion and nanosecond time-resolved emission spectroscopy. The results showed that there is a structural change of the complex with a time constant of 0.78 ps in acetonitrile solution, and 1.4 ps in butyronitrile solution. The mechanism of different processes was explained by analyzing the oscillator strengths.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Wenpeng Du, Yan Gao, Brian Stankus, Xuan Xu, Haiwang Yong, Peter M. Weber
Summary: The ultrafast conformational dynamics of electronically excited N-methyl piperidine (NMP) was studied using time-resolved Rydberg fingerprint spectroscopy. The study found that intramolecular vibrational energy redistribution on a picosecond time scale leads to an equilibrium between two conformeric structures and identified the conformers as the chair and twist structures of NMP. Thermodynamic parameters for the conformeric transformation were extracted, including an enthalpy of 62 meV and an entropy of 19.70 J mol(-1) K-1 for the chair to twist reaction in the 3s excited state.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Chunfan Yang, Qian Zhou, Zeqing Jiao, Hongmei Zhao, Chun-Hua Huang, Ben-Zhan Zhu, Hongmei Su
Summary: The study investigates the (MLCT)-M-3 luminescence relaxation dynamics of [Ru(phen)(2)(dppz)](2+) in two G-quadruplexes by combining femtosecond and nanosecond pump-probe spectroscopy. Different rates of dark state formation were observed based on the water content in local G-quadruplex structures.
COMMUNICATIONS CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Vanitha R. Naina, Akhil K. Singh, Frederic Kraetschmer, Sergei Lebedkin, Manfred M. Kappes, Peter W. Roesky
Summary: This study describes the synthesis of heteroleptic Cu(i) complexes with coumarin-functionalized aminodiphosphine and diimine ligands. The complexes exhibit yellow to deep-red phosphorescence in the solid state at ambient temperature, with quantum yields up to 21%. The emission color of the complexes can be modulated by systematic modifications in the ligand system.
DALTON TRANSACTIONS
(2023)
Article
Physics, Multidisciplinary
N. Jourdain, L. Lecherbourg, V Recoules, P. Renaudin, F. Dorchies
Summary: The ultrafast dynamics of the loss of crystalline periodicity in femtosecond laser heated warm dense copper was studied using x-ray absorption near-edge structures above the L3 edge. A characteristic time of approximately 1 ps was observed for energy densities ranging from 1 to 5 MJ/kg, with the experimental data well reproduced by two-temperature hydrodynamic simulations, indicating a thermal phase transition.
PHYSICAL REVIEW LETTERS
(2021)
Article
Biochemistry & Molecular Biology
Jordan L. L. Appleton, Christophe Gourlaouen, Romain Ruppert
Summary: This study describes a series of new heteroleptic copper(I) bis(diimine) complexes. Surprisingly, using one highly hindered phenanthroline ligand and a second less-hindered diimine ligand led to an almost perfect tetrahedral coordination geometry around the copper(I) ion. Crystal structures and calculations showed that non-covalent interactions between the two diimine ligands governed these structural features. The electronic properties and fluorescence lifetimes of the complexes were also determined.
Article
Chemistry, Physical
Shakeel Ahmed, Wang Rui, Faizah Altaf, Jahanzeb Khan, Patrizia Bocchetta, Han Zhang
Summary: The carrier dynamics of 2D tri-TMDCs provide a platform for studying excitons. In this study, ZrTe3 nanosheets were investigated using transient absorption spectrometer. Different carrier dynamics were observed at different pump powers and wavelengths. The shorter decay constant is related to electron-phonon relaxation, while the longer decay constant represents charge separation. TA spectroscopy provides insight into carrier lifetime, cooling dynamics, diffusion, and excitations.
Article
Chemistry, Multidisciplinary
Michael W. Mara, Brian T. Phelan, Zhu-Lin Xie, Tae Wu Kim, Darren J. Hsu, Xiaolin Liu, Andrew J. S. Valentine, Pyosang Kim, Xiaosong Li, Shin-ichi Adachi, Tetsuo Katayama, Karen L. Mulfort, Lin X. Chen
Summary: This study elucidates the effects of metal-metal interactions in a bimetallic complex using ultrafast optical and X-ray spectroscopies. The excited-state coupling between metal centers was found to affect the properties of charge-transfer states, providing important insights for tuning photosynthetic systems.
Review
Chemistry, Inorganic & Nuclear
Pegah Hajivand, Johannes Carolus Jansen, Emilio Pardo, Donatella Armentano, Teresa F. Mastropietro, Amirreza Azadmehr
Summary: VOCs in human breath can be used as biomarkers for diseases, and MOFs have been extensively studied as gas sensors for VOCs. This review provides a comprehensive summary of the latest MOF-derived composites used as VOCs biomarkers' sensors, and discusses the structural and functional characteristics of MOFs, sensing properties, and the potential of bio-MOFs in VOCs sensing.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Seoyoon Song, Deborah Lee, Lucia C. Dalle Ore, Sungjun Kwak, Lifeng Kang, Hyung Kyo Kim, Noah Malmstadt, Sun Min Kim, Tae-Joon Jeon
Summary: This paper introduces the latest advancements in photoactivable liposomes in drug delivery, highlighting their advantages in precise control over drug release and targeted delivery, as well as the fine control over release kinetics achieved through the manipulation of light-responsive components. Additionally, the paper emphasizes the design considerations of physicochemical properties and light-related constituents.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Shudi Liu, Liangwei Zhang, Heejeong Kim, Jinyu Sun, Juyoung Yoon
Summary: Chromium is a strategic and critical transition metal element with extensive applications. Efficient detection methods, such as fluorescence and colorimetry, have been developed for monitoring its concentrations. However, existing reviews on fluorescent probes for chromium lack comprehensive coverage. This review aims to consolidate information and promote the development of novel fluorescent probes for chromium detection.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Rehab H. Elattar, Samah F. El-Malla, Amira H. Kamal, Fotouh R. Mansour
Summary: Metal complexes have strong analysis potential and can be used to measure analytes lacking essential chemical properties. Their analytical methods based on different mechanisms offer superior performance.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Nem Singh, Miae Won, Yunjie Xu, Changyu Yoon, Jiyoung Yoo, Mingle Li, Heemin Kang, Jong Seung Kim
Summary: Hypoxia is a common occurrence in the tumor microenvironment and poses challenges for cancer treatment. The introduction of covalent organic frameworks (COFs) offers promising prospects for addressing hypoxia-related issues. This article explores the role of COFs in enhancing oxygen delivery, generating reactive oxygen species, optimizing drug delivery, and enabling hypoxia-specific imaging, as well as outlining their applications in various hypoxia-targeting therapeutic modalities.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Priyadarshi Roy Chowdhury, Himani Medhi, Krishna G. Bhattacharyya, Chaudhery Mustansar Hussain
Summary: This review critically analyzes the production of waste-derived layered double hydroxides (LDH) and their utility in electrochemical water splitting for the generation of green hydrogen as sustainable energy. It highlights the importance of waste-derived LDH and discusses the challenges and future directions in this field.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Rajamanickam Sivakumar, Nae Yoon Lee
Summary: This article reviews the progress in imaging reactive oxygen, nitrogen, and sulfur species (RONSS) using luminescent metal complex-based probes. This technology is selective and sensitive, which is of great significance for studying the impact of RONSS in cells and tissues and preventing diseases.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Xinyang Li, Binbin Ding, Pan Zheng, Ping'an Ma, Jun Lin
Summary: The main goal of immunotherapy is to enhance the response and cytotoxicity of tumor-specific T cells by turning cold tumors into hot tumors. However, metabolic reprogramming in the tumor microenvironment can depress the cytotoxicity of T cells and hinder the effectiveness of immunotherapy. This review discusses the role of metabolic reprogramming in the interplay between cancer cells and immune cells in the tumor microenvironment and explores the use of nanomaterials to modulate metabolic pathways and improve immunotherapy outcomes.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Kingsley Poon, Abhishek Gupta, William S. Price, Hala Zreiqat, Gurvinder Singh
Summary: Progress in the development of manganese oxide nanoparticles (MONPs) has provided an alternative for early-stage diagnosis of life-threatening diseases and therapeutic delivery of drugs and genes. The synthesis and characterization of MONPs have enabled the production of multi-functional targeted nanoparticles in various sizes and shapes. The integration of diagnosis and therapeutic capabilities within a single entity, known as nanotheranostics, is promising for real-time monitoring of disease progression and evaluating therapeutic treatment efficacy.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Reza Abedi-Firoozjah, Hadiseh Ebdali, Mahya Soltani, Parastoo Abdolahi-Fard, Mahshid Heydari, Elham Assadpour, Maryam Azizi-Lalabadi, Fuyuan Zhang, Seid Mahdi Jafari
Summary: With the increasing awareness of food safety, there is a growing demand for efficient and affordable sensing methods for the detection of pathogens and toxins in food products. Nanosensors offer promising solutions with their quick and reliable detection capabilities, although challenges remain in their fabrication and practical application.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Demei Sun, Xuesong Feng, Xinyuan Zhu, Youfu Wang, Jinghui Yang
Summary: Metal organic cages (MOCs) with precise and tunable nano structures show great potential in cancer therapy. Their diverse functions and ultrasmall size make them excellent nanoagents for different anticancer strategies, demonstrating outstanding anticancer performances.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Li Li, Yang-Tao Yu, Ning-Ning Zhang, Shu-Hao Li, Jian-Ge Zeng, Yang Hua, Hong Zhang
Summary: This article summarizes recent advances in POM-based hybrid photochromic materials (PCHPMs), including structure types, new photochromic mechanisms, and applications. It can provide valuable guidance for researchers investigating POM-based hybrid photochromic materials.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Chien Ing Yeo, Clariss Hui Peng Goh, Edward R. T. Tiekink, Jactty Chew
Summary: This review article provides an overview of the antibacterial activity of gold complexes, with a focus on gold(I) and gold(III) complexes. It also summarizes the repurposing of Auranofin for antibacterial purposes and the associated mechanism(s) of action.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Sangharaj Diyali, Nilankar Diyali, Bhaskar Biswas
Summary: This study discusses the recent progress in the design and development of catalysts, focusing on the factors influencing overpotential, catalytic rate, and stability, as well as the mechanisms of the hydrogen evolution reaction in acidic and alkaline media. Moreover, it outlines the challenges in future design of robust and active electrocatalysts.
COORDINATION CHEMISTRY REVIEWS
(2024)
Review
Chemistry, Inorganic & Nuclear
Shaik Gouse Peera, Rahul S. Menon, Sumanta Kumar Das, Akram Alfantazi, K. Karuppasamy, Chao Liu, Akhila Kumar Sahu
Summary: Doped carbon materials, especially F-doped carbon catalysts, have gained significant attention as metal-free catalysts for oxygen reduction reactions and as corrosion-resistant supports for Pt and non-Pt nanoparticles. F-doped carbon materials possess unique properties and greatly improve the activity and durability of the ORR compared to N-doped carbon materials. The high electronegativity of F-doping can efficiently modify the electronic band structure of carbon materials, favoring the ORR. This review systematically discusses the effect of F-doping/F co-doping on the electrocatalytic reduction of O2 in acidic and alkaline conditions, the stability and durability of fuel cell catalysts, and provides guidelines for working with F-doped carbons. Future research directions on F-doped carbons are also proposed to bridge the gap between laboratory-scale assessments and commercial applications.
COORDINATION CHEMISTRY REVIEWS
(2024)