Article
Materials Science, Multidisciplinary
Xiaofeng Lin, Daxiang Shi, Beichi Luo, Zecong Ye, Yingxiao Mu, Zhiyong Yang, Guobin Yi, Zhenguo Chi, Yanping Huo, Bai Yang
Summary: A new class of pRTP materials named carbonized oligomer-like dots (CODs) is reported, which have injection molding capacity and high mechanical strength. The luminescence and mechanical properties of the CODs (PN1-PN4) may be altered by altering the quantity of phosphoric acid and diethylenetriamine using a microwave-assisted heating technique. This study may pave the way for the development of pRTP materials with superior mechanical strength in the fields of information encryption and flexible displays.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Yan Gao, Jie Lu, Qiuyan Liao, Shuhui Li, Qianqian Li, Zhen Li
Summary: Accurate changes of aggregated structures and motion models of organic luminogens during thermal annealing have been revealed by crystal engineering, accompanying with `turn-on' RTP response.
NATIONAL SCIENCE REVIEW
(2023)
Article
Materials Science, Multidisciplinary
Zhijun Ruan, Qiuyan Liao, Qianxi Dang, Xiaoli Chen, Chunyun Deng, Ziru Gao, Junqi Lin, Shanshan Liu, Yanmei Chen, Zhengfang Tian, Zhen Li
Summary: By rational design of molecular structure, control of molecular packing, and successful synthesis of butterfly-like molecules, this study demonstrates bright mechanoluminescence and persistent phosphorescence effects. Significant improvements in phosphorescence lifetime and efficiency are achieved, providing new pure organic phosphorescent and mechanoluminescent molecules for better understanding the relationship between molecular structure, packing, and performance.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Engineering, Environmental
Qi Sun, Ning Ding, Chaofeng Zhao, Jie Ji, Shenghua Li, Siping Pang
Summary: The effective strategy based on positional isomerism has been proposed to enhance the density of energetic materials and led to the synthesis of a high-density nitramino compound 2 with improved detonation performance compared to the original material 1.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Yuhang Xu, Yan Zhu, Liuqi Kong, Shaochen Sun, Fei Li, Farong Tao, Liping Wang, Guang Li
Summary: This study developed two simple strategies to construct ultralong and color-tunable room-temperature phosphorescent (RTP) materials based on non-covalent and covalent linking of sulfanilic acid (SA) on amorphous polyacrylamide (PAM) framework. The hydrogen bonding in PAM/SA and poly(acrylamide-co-4-acrylamidobenzenesulfonic acid) (PAMABS) effectively suppressed non-radiative transition and induced ultralong RTP emission at ambient conditions. The RTP properties of PAM/SA and PAMABS can be controlled by the molar ratio of acrylamide to SA, and PAMABS showed excitation-dependent color-tunable phosphorescence emission. Both materials exhibited RTP responsiveness to water and heat stimuli, making them suitable for anti-counterfeiting and information encryption.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Xiaoqing Song, Guang Lu, Yi Man, Jing Zhang, Shuo Chen, Chunmiao Han, Hui Xu
Summary: In this study, three carbazole-triphenylphosphine hybrids were designed and synthesized to achieve high efficiency and long lifetime of organic room temperature phosphorescence (RTP). The para-substituted pCzTPP showed high RTP efficiency (>10%) and extended lifetime (>600 ms), surpassing the ortho- and meta- isomers. Theoretical simulation and photophysical investigation revealed that the strong intermolecular p-p and p-p interactions in pCzTPP facilitated the transition probability and triplet stability of (3)pp state, demonstrating the synergy of p-p and p-p in RTP process.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
W. Sun, B. Shi, Z. Xia, C. Lu
Summary: By doping organic materials into a polyvinyl alcohol matrix, visible-light excitation organic RTP materials with blue-green phosphorescence emission were achieved. The afterglow colors of these materials can be adjusted by co-doping fluorescence dyes. However, the RTP phenomenon disappears when the hydrogen bonding is broken by water molecules. This drawback was overcome by constructing an Aphen-epoxy resin composite system.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xiuxing Liu, Qiuyan Liao, Jie Yang, Zhen Li, Qianqian Li
Summary: The phosphorescence of organic materials is influenced by intermolecular interactions, which are affected by various factors and uncontrollable aggregated behaviors. By controlling the temperature, the afterglow can change colors continuously, achieving white emission with deuteration. This is due to the hierarchical architectures of molecular aggregates and the unlocking process of interactions with different energies. Establishing the correspondence between interactions and excited triplet states allows for accurate design of desirable phosphorescence materials through hierarchical control of aggregated structures.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yingzhe Liu, Tao Yu, Weipeng Lai, Yiding Ma, Zhongxue Ge, Peng-Yu Liang, Fang-Ling Yang, Yu Long, Pan-Pan Zhou, Zhaoyong Yang
Summary: The study investigated the structural and interactions of the high-energetic and low-sensitive explosive material LLM-105, highlighting the significant role of intermolecular HMIDLINE HORIZONTAL ELLIPSISO interactions in crystal stability. The comparison between experimental and partly optimized crystal structures revealed the complexity of intermolecular interactions.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2022)
Article
Chemistry, Multidisciplinary
Zhu Wu, Juan Carlos Roldao, Florian Rauch, Alexandra Friedrich, Matthias Ferger, Frank Wuerthner, Johannes Gierschner, Todd B. Marder
Summary: Boric acid has been used as a transparent glass matrix for optical materials for many years. Recent research found that it can exhibit phosphorescence under certain conditions, but only when there are trace impurities present.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Spectroscopy
Binbin Xie, Ruirui Liu, Yufei Han, Han Xu, Caiying Jiang, Huizhen Wu, Huigang Wang
Summary: The isotropic and anisotropic component Raman spectra and H NMR of N-methylpyrrolidone (NMP)/carbon tetrachloride and NMP/methanol binary mixture at different volume fractions have been collected. The polarization Raman frequencies and frequency differences of C=O stretching vibration for NMP/methanol mixture show unique concentration-dependence and abrupt jump feature. It is found that the H-bond between solute and solvent does not destroy the noncoincidence (NCE) phenomenon, but has a significant synergistic effect on the NCE.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Bing Wang, Zhuo Li, HaiXia Ma, JianBo Zhang, LinYu Jiao, Hong Hao, EnZhou Liu, Long Xu, Chen Wang, Bo Zhou, XiaoXun Ma
Summary: Efficient photocatalytic oxidation of antibiotics can be achieved by developing dynamic attachment strategies between supramolecular and semiconducting catalysts. In this study, hydrogen bonding and van der Waals forces are used to connect self-assembled SubPc-1 dimers and Ag3PO4 semiconductor catalysts, forming supramolecular nanoarrays. The superior activity and stability of these arrays are attributed to the dynamic hydrogen bonding and van der Waals connection. This work reveals the potential for preparing specific S-scheme heterojunction photocatalysts based on dynamic attachment supramolecular and semiconductor catalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Biochemistry & Molecular Biology
Tore Brinck, Andre Nyberg Borrfors
Summary: Through theoretical modeling, this study found that the interaction energy of hydrogen-bonded complexes between Br- and halogen, oxygen, and sulfur donors can be accurately reproduced using scaled interaction energy with a point charge.
JOURNAL OF MOLECULAR MODELING
(2022)
Article
Biochemistry & Molecular Biology
Lingyun Lou, Tianqi Xu, Yuzhan Li, Changli Zhang, Bochun Wang, Xusheng Zhang, Hean Zhang, Yuting Qiu, Junyan Yang, Dong Wang, Hui Cao, Wanli He, Zhou Yang
Summary: This study reports on a noncovalent material prepared through facile grinding, which exhibits fluorescence and RTP emission characteristics and forms exciplex as the minimum emission unit. The study reveals that H-bonds in the RTP system can restrict nonradiative transition while enhancing energy transformation and energy level degeneracy. Additionally, the material can be used to produce water-stimulated photoluminescent ink for double-encryption application.
Article
Biochemistry & Molecular Biology
Emran Masoumifeshani, Michal Chojecki, Dorota Rutkowska-Zbik, Tatiana Korona
Summary: This contribution explores the intermolecular complexes formed between calix[6]arenes and amino acids. By using techniques such as SAPT, F-SAPT, and SMF, the study aims to explain the varying number and strength of noncovalent bonds between different calixarene conformers and guest molecules. The partitioning of interaction energy allows for the identification of hydrogen bonds, as well as other noncovalent bonds, and helps explain phenomena such as the red shift of IR stretching frequency.
