Article
Chemistry, Multidisciplinary
Deliang Wang, Hongzhuo Wu, Junyi Gong, Yu Xiong, Qian Wu, Zheng Zhao, Lei Wang, Dong Wang, Ben Zhong Tang
Summary: This study investigates the incorporation of organic phosphors into a PVA matrix to achieve room-temperature phosphorescent materials. It reveals that electrostatic and dispersion interactions play crucial roles in determining the ultralong RTP properties, shedding light on the nature of non-covalent interactions in doping PVA systems. Moreover, by simply modifying the active groups of organic phosphors, the researchers successfully achieve an ultralong RTP lifetime, providing new guiding principles for exploring amorphous organic RTP systems.
MATERIALS HORIZONS
(2022)
Article
Biochemistry & Molecular Biology
Elena Bassan, Yasi Dai, Daniele Fazzi, Andrea Gualandi, Pier Giorgio Cozzi, Fabrizia Negri, Paola Ceroni
Summary: A new BODIPY derivative (o-I-BDP) containing an iodine atom in the ortho position of the meso-linked phenyl group was prepared. It was found that o-I-BDP displays phosphorescence while maintaining the electrochemical properties of unsubstituted BODIPYs. Theoretical investigations shed light on the influence of iodine position on electronic and photophysical properties.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Wen-Jing Qin, Ji-Rui Zhang, Xu-Ke Tian, Xiao-Gang Yang, Yu-Ming Guo
Summary: A new strategy has been developed to achieve long-lived room temperature phosphorescence performance by forming a donor-acceptor structure in a coordination polymer, which features significantly higher lifetime (40.22 ms) than that of pristine phosphor.
Article
Engineering, Environmental
Bin Wu, William A. Arnold, Limin Ma
Summary: This study investigates the photolysis of atrazine under different illumination conditions and its reactivity with model photosensitizers, revealing the significant impact of model sensitizers on the loss of atrazine. This work provides insights into the use of model photosensitizers to mimic triplet (CDOM)-C-3* and its relevance in certain conditions.
Article
Chemistry, Multidisciplinary
Le Qu, Hanjiao Chen, Chengjia Shi, Huaqing Li, Qi Ai, Xuying Liu, Cao Yang, Huige Yang, Xiaoguang Hu
Summary: This study reports the synthesis and magnetic properties of carboxylic acid-functionalized 1,2,4-benzotriazinyl radicals and their corresponding coordination particles. These compounds exhibit typical antiferromagnetic behavior and good thermal stability. Nanosize coordination particles are obtained upon sonication. The coordination particles formed by carboxylic acid radicals show stronger spin-spin interactions compared to their ester counterparts.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Environmental
Limiao Cai, Qian Yao, Xiaodong Du, Jiayi Zhong, Haijian Lu, Xueqin Tao, Jiangmin Zhou, Zhi Dang, Guining Lu
Summary: A 1O2 system using FFA as a probe was constructed to discuss the quenching, interference elimination, and pollutant degradation ability of 1O2. The results revealed the influence of quencher dosage and ability on quenching, and provided a method to judge the interruption of 1O2 production.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Physical
Wentao Zhang, Wenguang Huang, Jiyuan Jin, Yonghai Gan, Shujuan Zhang
Summary: The importance of singlet oxygen (1O2) in various applications has driven research on photocatalytic generation of 1O2 using metal-organic frameworks (MOFs). Despite limitations in visible-light absorption and charge carrier recombination, beta-diketone anchoring on MIL-125 was found to enhance energy transfer and improve the photocatalytic generation of 1O2. This study sheds light on the potential of visible-light-responsive MOFs for 1O2 generation and suggests a new strategy for designing MOF-based photocatalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Antonio J. C. Varandas
Summary: The concept of post-complete-basis-set (pCBS) extrapolation is introduced in the study, showing that it yields nearly as accurate results as explicitly correlated CCSD(T)-F12 theory when calculating CCSD(T) correlation energy. The pCBS energies for the A24 test set share the same asymptote with an average error of 0.06 kcal mol(-1), indicating the accuracy of the theory itself. Overall, both canonical and F12 coupled cluster approaches can be considered to yield similar accuracy results when pCBS extrapolated from basis sets of formally similar rungs.
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY
(2021)
Article
Engineering, Environmental
Zachary C. Redman, Joshua Wesolowski, Patrick L. Tomco
Summary: The research showed that rotenone and deguelin were primarily eliminated from surface waters through photochemical degradation, with limited impact from reactive oxygen species and a potential inhibitory effect from alcohols. The quality of dissolved organic matter (DOM) was identified as the major factor modulating rotenone attenuation, with temperature-dependent mechanisms. Molecular-level characterizations of DOM may help explain the site-specific degradation of these rotenoids in the environment.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Optics
Lixin Zang, Huibin Wang, Zongxue Wang, Shumin Wang, Miaomiao Yu, Qi Kang, Guizheng Zou, Huimin Zhao
Summary: This study reveals the competition between the triplet state of metalloporphyrins and surrounding oxygen, and regulates the phosphorescence intensity and singlet oxygen generation efficiency by using imidazole as a triplet protector.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Multidisciplinary
Estefania del Horno, Jesus Jover, Miguel Mena, Adrian Perez-Redondo, Carlos Yelamos
Summary: By reacting [TiCp*Cl-3] with magnesium, a trinuclear mixed-valence complex is formed, which can react with dinitrogen to produce a diamagnetic compound. The reaction process can potentially be used for cyclic ammonia synthesis under ambient conditions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Ezel Ozturk Gunduz, Hande Eserci Gurbuz, Berkan Tasasiz, Elif Yildiz Gul, Esra Tanriverdi Ecik, Elif Okutan
Summary: This research focuses on the development of new photocatalysts that are active under light and suitable for organic reactions. Novel benzyl-, naphthalimide (NI)-, and carbazole (CB)-BODIPY derivatives were synthesized and characterized. These compounds exhibited strong absorption bands, moderate fluorescence characters, and good singlet-oxygen-generating abilities, making them effective photocatalysts. They were also used in the synthesis of juglone, achieving a high production yield in a short reaction time.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Environmental
Haiyan Wang, Teng Zhang, Yuefei Ji, Junhe Lu
Summary: This study reveals that norfloxacin can sensitize the photodegradation of phenylurea herbicides. This is attributed to the formation of an excited triplet of norfloxacin by UV-A irradiation, which can further react with O2 to form singlet oxygen. Additionally, natural organic matter inhibits the degradation of phenylurea induced by norfloxacin.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Optics
C. A. Downing, E. del Valle, A. I. Fernandez-Dominguez
Summary: In this article, we study a driven-dissipative duo of two-level systems using an open quantum systems approach, which models a pair of atoms or more generally, meta-atoms. By allowing complex-valued couplings, both coherent and incoherent, in the setup, we explore a diverse coupling landscape. We examine different scenarios on this landscape, where the coupling between the two-level systems can be predominantly coherent, incoherent, unsymmetrical, or even unidirectional. These variations in coupling lead to remarkable features in the populations, correlations, and optical spectra of the pair, potentially surpassing the Mollow triplet spectrum for a single atom and allowing for population trapping.
Article
Chemistry, Physical
Tianying Wang, Heyuan Liu, Xianyuan Wang, Linglong Tang, Jun Zhou, Xiaojuan Song, Liping Lv, Wenmiao Chen, Yanli Chen, Xiyou Li
Summary: This study explores the development of efficient heavy-metal-free photosensitizers for the production of reactive oxygen species (ROS) through singlet fission. A metal-free tetracene dimer is prepared and utilized to generate singlet oxygen and superoxide radicals. The results show improved yields of ROS compared to traditional photosensitizers, and the generation mechanisms are clearly described.