Article
Chemistry, Inorganic & Nuclear
Zhiyuan Chen, Hongzhi Wang, Lai Hu, Senqiang Zhu, Rui Liu, Hongjun Zhu
Summary: A series of Pt(II) diimine complexes with varying alkyl chains on 2,2'-dipyridyl ligands (Pt-C1-Pt-C3) were synthesized and characterized. The photophysical and nonlinear absorption properties of these complexes were found to change regularly with the increase in alkyl chain length, affecting the conjugated skeleton of the Pt(II) complexes and enhancing their optical power limiting (OPL) performance. The introduction and extension of alkyl chains led to the formation of Pt(II) complex nanoparticles, resulting in significant improvements in emission intensity and excited state lifetime in a mixed solution of tetrahydrofuran/water.
INORGANICA CHIMICA ACTA
(2022)
Article
Chemistry, Inorganic & Nuclear
Samit Pramanik, Sumanta Jana, Kinsuk Das, Sudipta Pathak, Joaquin Ortega-Castro, Antonio Frontera, Subrata Mukhopadhyay
Summary: In this study, Zn(II) (complex 1), Cd(II) (complex 2), and Hg(II) (complex 3) complexes were synthesized and characterized using a triply protonated tptz (H3tptz3+) ligand. The crystallographic analysis showed that anion center dot center dot center dot N, anion center dot center dot center dot N+, and hydrogen bonding interactions played a key role in stabilizing the self-assembled structures and enhancing the dimensionality of the complexes. The device parameters of the complexes were investigated through the fabrication of a Schottky barrier diode (SBD), and it was found that complex 2 exhibited superior performance compared to complexes 1 and 3.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Senqiang Zhu, Qing Zhang, Qianqian Pan, Jinyang Hu, Rui Liu, Guangliang Song, Hongjun Zhu
Summary: Efficient nonlinear optical (NLO) materials are developed by incorporating organometallic Pt(II) complexes into carbon quantum dots (CQDs), exhibiting synergistic effect. The hybrid material exhibits unique transitions and improved NLO performance, including reverse saturable absorption (RSA) and nonlinear scattering responses.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Applied
Caixia Ou, Weixia Lv, Jun Chen, Tianchen Yu, Yinglin Song, Yafei Wang, Shuangqing Wang, Guoqiang Yang
Summary: The aggregation effect between phthalocyanine rings on different rare earth metal sandwich complexes leads to regular changes in photophysical and non-linear absorption coefficients, with a decrease in rare earth metal radius increasing the aggregation degree and inhibiting the reverse saturable absorption process. This study provides a theoretical basis for designing high-performance nonlinear optical materials.
Article
Chemistry, Applied
Xue Wei, Wei-Bo Cui, Feng-Yi Sun, Hui Li, Jing-Fu Guo, Xue-Li Hao, Ai-Min Ren
Summary: In this paper, density functional theory (DFT) and timedependent density functional theory (TDDFT) calculations were used to study the properties of Pt(II) and Pd(II) complexes. The designed Pd(II) complex showed a large two-photon absorption cross section and long triplet excited state lifetime, making it a potential candidate for an effective two-photon absorption photosensitizer.
Article
Chemistry, Inorganic & Nuclear
Md. Faruak Ahmad, Md. Mostafizur Rahman, Md Amran-Al-Taz Khan, Afnan Bin Siddique, Mst. Hosne Ara, Manash Kanti Biswas, Nikhil C. Bhoumik, Shishir Ghosh, Pradeepkumar Jagadesan, Mohammad Mizanur Rahman Khan, Muhammad Younus
Summary: In this study, a series of platinum complexes were successfully synthesized using a CuCl catalyst, characterized by IR, H-1 NMR, P-31 NMR, and further employed for the synthesis of symmetrical dinuclear platinum complexes. The thermal stability and photophysical properties of these complexes were investigated using various techniques such as thermogravimetric analysis, electronic absorption and emission spectroscopy, and z-scan.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Applied
Wenshan Qu, Zhixiang Gao, Wei Li, Xiaxia Fan, Yunlong Shi, Yanqin Miao, Guichen Yu, Haitao Zhou, Jinhai Huang, Hua Wang
Summary: In this study, a novel bipolar host material CzTrz was synthesized and investigated, showing superior thermal stability, energy levels, and device performance compared to the reference unipolar host BCz2. The green PhOLEDs hosted by CzTrz exhibited excellent efficiency with minimal roll-off at high luminance, making it one of the best reported results for green bipolar hosts.
Article
Biochemistry & Molecular Biology
Maren Krause, Ivan Maisuls, Stefan Buss, Cristian A. Strassert, Andreas Winter, Ulrich S. Schubert, Shruthi S. Nair, Benjamin Dietzek-Ivansic, Axel Klein
Summary: The electrochemical and photophysical properties of Pt(II) complexes containing different ligands were studied, showing varied reduction potentials and absorption spectra. The naphen ligand resulted in a lower electrochemical gap compared to the tetrahydro derivatives. The coordination pattern of ligands also influenced the emission properties, with different complexes exhibiting varying photoluminescence lifetimes and quantum yields.
Article
Crystallography
Leonardo E. Cruz-Estrada, Simon Hernandez-Ortega, Jesus Valdes-Martinez
Summary: In this study, the crystal and molecular structure of two compounds obtained from reactions between the ligand 2,4,6-tris(2-pyrimidyl)-1,3,5-triazine and Pd(II) and Pt(II) complexes were reported. The compounds have a square planar structure, with the ligand acting as a tridentate-kappa N-3 anionic ligand. The compounds form columns through interactions between aromatic rings and interact with solvent molecules through hydrogen bonds.
JOURNAL OF CHEMICAL CRYSTALLOGRAPHY
(2023)
Article
Instruments & Instrumentation
Zhenyu Zhao, Binjian Du, Yi Xin, Zihan Ren, Fei Xing, Fang Zhang
Summary: Using the liquid-phase exfoliation technique, 2D vanadium (V) material was effectively exfoliated, exhibiting outstanding optical limiting behavior at 355 nm and potential applications in laser and eye protection.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
M. A. Shmelev, Yu. K. Voronina, S. S. Chekurova, N. V. Gogoleva, T. M. Ivanova, O. I. Lyamina, E. V. Fatyushina, M. A. Kiskin, A. A. Sidorov, I. L. Eremenko
Summary: The study investigated the impact of bulky tridentate ligands on the geometry of carboxylate complexes in relation to hexahydro-1,3,5-trimethyl-1,3,5-triazine (TACH). Different metal ions and ligands resulted in complex structures with significant differences, showing distortion in metal coordination polyhedra and ligand conformational changes.
RUSSIAN JOURNAL OF COORDINATION CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Cecilia Lete, Diana Visinescu, Sergiu Shova, Catalin Maxim, Maria-Gabriela Alexandru
Summary: Two new three-dimensional coordination polymers, green and yellow-orange colored compounds 1 and 2, were synthesized. X-ray diffraction showed that compound 1 had a chiral three-dimensional structure, while compound 2 had a three-dimensional structure formed by the interaction of two types of two-dimensional networks. Photoluminescence spectra and circular dichroism confirmed the characteristics of the two complexes.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Anna Makowska, Franciszek Saczewski, Patrick J. Bednarski, Maria Gdaniec, Lukasz Balewski, Magdalena Warmbier, Anita Kornicka
Summary: A series of copper(II) complexes were synthesized and screened for their activity against human cancer cell lines, showing significant inhibitory properties. The newly prepared Cu(II) complexes often displayed increased activity compared to the free ligands. Among the complexes, certain compounds exhibited higher potency than cisplatin against the tested cell lines.
Article
Chemistry, Inorganic & Nuclear
Aleksandra Paderina, Sofia Slavova, Stanislav Petrovskii, Elena Grachova
Summary: A series of Pt(II) complexes with alkynylphosphonium and di-tert-butyl-2,2'-bipyridine (dtbpy) ligands were prepared and characterized. The complexes showed triplet emission in solution, which was controlled by the nature of the pi-conjugated linker in the alkynylphosphonium ligand. DFT calculations supported this conclusion and also showed that the complexes exhibited enhanced nonlinear optical properties and mechanochromic luminescence.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Tian Wen-Yu, Chu Jin-Feng
Summary: Three azide bridged complexes were synthesized using different metal ions connecting modes. Additionally, a copper(II) complex was successfully prepared, and all complexes were characterized and analyzed for their properties.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Qian Cheng, Zhiyuan Chen, Qing Zhang, Senqiang Zhu, Rui Liu, Hongjun Zhu
Summary: Three A-pi-A or D-pi-D perylene diimide (PDI) derivatives with varied groups on the pi-conjugate were synthesized and characterized. The photophysical properties of these compounds were systematically studied by spectral experiments and density functional theory calculations. The presence of diverse groups on the pi-conjugate influenced the UV-vis absorption of the PDI derivatives, showing red or blue shifts in absorption wavelengths.
Article
Chemistry, Physical
Senqiang Zhu, Qing Zhang, Qianqian Pan, Jinyang Hu, Rui Liu, Guangliang Song, Hongjun Zhu
Summary: Efficient nonlinear optical (NLO) materials are developed by incorporating organometallic Pt(II) complexes into carbon quantum dots (CQDs), exhibiting synergistic effect. The hybrid material exhibits unique transitions and improved NLO performance, including reverse saturable absorption (RSA) and nonlinear scattering responses.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Applied
Senqiang Zhu, Hongzhi Wang, Yue He, Hao Liu, Rui Liu, Hongjun Zhu
Summary: This study reports on multi-color emission materials with unique molecular stackings and investigates the relationship between molecular stackings and emission properties. The findings provide new insights for the design of multi-color emission materials adopting different aggregation states.
Article
Materials Science, Multidisciplinary
Shimao Zhao, Senqiang Zhu, Haifeng Zhu, Gongxing Xie, Rui Liu, Hongjun Zhu
Summary: This study focuses on the synthesis and characterization of five new organic conjugated molecules, which show potential for anti-blue light applications.
Article
Chemistry, Multidisciplinary
Ru Meng, Huan Su, Senqiang Zhu, Yuan Pan, Rubin Pan, Rui Liu, Hongjun Zhu
Summary: Three reactive dyes with bisbenzimidazole as chromophore and bischlorotriazine as active group were synthesized and characterized. The photophysical properties of the dyes were investigated by UV-vis absorption, emission, and density functional theory calculations. The dyes showed potential for salt-free dyeing applications on silk.
Article
Chemistry, Physical
Tengteng Wang, Xue Yang, Yufang Ma, Lei Chen, Meikun Shen, Yongdan Chen, Guangliang Song, Lei Wang, Yu Zhou, Jun Wang, Hongjun Zhu
Summary: This study successfully fabricated high-quality titanium silicalite-1 (TS-1) and revealed the active center in TS-1 as well as the role of ketones and oximes through various analytical methods. This is of great importance for understanding the catalytic oxidation process.
MOLECULAR CATALYSIS
(2022)
Review
Chemistry, Inorganic & Nuclear
Huan Su, Lai Hu, Senqiang Zhu, Jiapeng Lu, Jinyang Hu, Rui Liu, Hongjun Zhu
Summary: Transition metal complexes with strong and long-lived excited state absorption exhibit high-performance optical power limiting response. This review focuses on the structure-OPL response relationships of Pt(II), Ir(III), Ru(II), and other metal complexes, and concludes with perspectives on the current status and future opportunities in the field of OPL.
REVIEWS IN INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Qian Cheng, Zhiyuan Chen, Lai Hu, Yuwei Song, Senqiang Zhu, Rui Liu, Hongjun Zhu
Summary: In this study, carbon dots (CDs) with room-temperature phosphorescence (RTP) were prepared by melting boric acid with alkyl amine compounds of different lengths. The effects of spatial factors on the structure and RTP properties of CDs were investigated. Additionally, the study utilized triplet-to-singlet resonance energy transfer to achieve long-lived multicolor afterglow using intense and long-lived phosphorescence CDs as donors and short-lived fluorescent dyes as acceptors.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jieqing Wu, Jiwei Chen, Lei Wang, Hongjun Zhu, Rui Liu, Guangliang Song, Chao Feng, Yufeng Li
Summary: This study presents a Bronsted acid-promoted aerobic photo-oxygenation method for the efficient synthesis of aromatic acids and ketones. It eliminates the need for transition metal complexes or organic photosensitizers, which increases its potential for industrial applications.
Article
Biochemistry & Molecular Biology
Guochang Li, Zhao Jiang, Meng Tang, Xiaoli Jiang, Houfu Tu, Senqiang Zhu, Rui Liu, Hongjun Zhu
Summary: Five novel bis-tridentate Ir(III) complexes incorporating versatile N^NC ligands and a N^CN ligand were synthesized and their steady and transient state characteristics were investigated. The broadband charge transfer absorbance of these complexes reaches 550 nm, and they all exhibit long-lasting phosphorescent emission. A strong reverse saturable absorption (RSA) process occurs in the visible and near-infrared regions when the complexes are exposed to a 532 nm laser. The optical power limiting (OPL) effect of these complexes can be enhanced by expanding pi-conjugation and introducing electron donating/withdrawing groups on the N^NC ligand.
Article
Biochemistry & Molecular Biology
Jiale Wang, Zhao Jiang, Cheng Huang, Shimao Zhao, Senqiang Zhu, Rui Liu, Hongjun Zhu
Summary: In this study, we designed and synthesized two near-infrared nanoprobes by tuning the electron-donating ability of the substituents on the core structure of boron-dipyrromethene (BODIPY) molecules. These self-assembled nanoparticles (NPs) exhibited near-infrared emission, large Stokes shifts, and high fluorescence quantum efficiency, which improved water dispersibility and reduced interference from biological background fluorescence. In vitro experiments showed that the NPs could enter tumor cells and illuminate the cytoplasm through fluorescence imaging. In vivo imaging with BDP-B NPs, which had unique near-infrared emission, demonstrated their ability to accumulate in tumors and effectively illuminate them via the enhanced penetrability and retention effect (EPR). Thus, BODIPY-based nanomicelles with near-infrared fluorescence emission provide a promising research foundation for the development of in vivo optical nanoprobes.
Article
Chemistry, Multidisciplinary
Yuwei Song, Yue He, Lai Hu, Qian Cheng, Zhiyuan Chen, Rui Liu, Senqiang Zhu, Hongjun Zhu
Summary: In this study, fluorescent small molecules with full-color luminescence were constructed by introducing benzene, thiophene, and C-C double-bond units to modulate the p-bridge length. These compounds covered the entire visible spectrum and exhibited high luminescence efficiency. LEDs fabricated using some of these compounds displayed better performance than commercial WLEDs, including higher luminous efficiency and color rendering index.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Inorganic & Nuclear
Senqiang Zhu, Qianqian Pan, Yuhao Li, Wenqing Liu, Rui Liu, Hongjun Zhu
Summary: Two new heteroleptic cationic Ir(III) complexes bearing benzothiazole and pyridine motifs on fluorene groups were synthesized and characterized. The complexes exhibited long-lived emissions and triplet excited states in both solution and aggregated states. In an acetonitrile-water mixture, the complexes displayed aggregation-induced phosphorescence emission behavior. Nonlinear transmittance experiments showed the suitability of these complexes for optical power limiting applications.
DALTON TRANSACTIONS
(2022)
Article
Materials Science, Multidisciplinary
Yuwei Song, Lai Hu, Qian Cheng, Zhiyuan Chen, Huan Su, Hao Liu, Rui Liu, Senqiang Zhu, Hongjun Zhu
Summary: This research designed and synthesized a series of benzothiazole derivatives, regulating their aggregation and photoluminescence properties through adjusting conjugated structures. Among them, ATZ2 exhibits a unique white luminescence in the solid state with good emission performance. By applying benzothiazole derivatives to LED devices, satisfactory luminescent effects were obtained.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)