Article
Chemistry, Organic
Lin Tang, Ge Lv, Ya Fu, Xue-Ping Chang, Ruimin Cheng, Lingling Wang, Qiuju Zhou
Summary: This article presents a simple and efficient DBU-promoted Heck-type alkene perfluoroalkylation under visible light irradiation. The reactions proceed smoothly via a radical process in the absence of an additional photocatalyst, using DBU as both a halogen bond acceptor and a base. Various perfluoroalkylated alkenes are obtained in satisfactory yields under mild conditions.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Shijie Xu, Fan Yang, Hui Fan, Xuechun Zhao, Yao Xu, Shuo Wang, Xiaoxiang Zhang
Summary: A simple and novel metal-free reduction method using DBU as both solvent and reducing reagent is reported for converting azides to amines, with aromatic and sulfonyl azides giving desired products in moderate to excellent yields. The transformation demonstrates good functional group tolerance and high chemo-selectivity.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Chemical
Maoxin Li, Wenyan Chen, Wenxing Chen, Shichang Chen
Summary: Poly(ethyleneterephthalate) (PET) is effectively degraded to obtain bis(hydroxyethyl)terephthalate (BHET) using deep eutectic solvents (DESs) based on 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) due to their high activity, low price, and accessible production properties. Under optimized reaction conditions, PET bottle flakes were completely degraded with a BHET yield of 83%. The formation of hydrogen bonds between ethylene glycol (EG) and DES, as well as between PET and DES, promotes glycolysis of PET, facilitating the attack of hydroxyl oxygen in EG on the carbonyl carbon in PET.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Muhammad Imran, Huaiman Cao, Jianzhang Zhao, Gloria Mazzone
Summary: In this study, the photophysical properties of a heavy atom-free organic chromophore with near-IR absorption and intersystem crossing ability were investigated. The compound consisting of naphthalenediimide and pentacyclic1,8-diazabicyclo[5.4.0]-undec-7-ene showed strong charge-transfer absorption in the near-IR region, but had poor intersystem crossing efficiency despite its twisted molecular structure.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Crystallography
Eric D. Fussell, Ampofo Darko
Summary: This article describes the synthesis and structural characterization of rhodium(II) carboxylate complexes, including two DBU adducts with similar attributes revealed by single-crystal X-ray diffraction analysis. Compound 1 crystallized with solvent molecules showing intermolecular interactions, while compound 2 lacked solvent and exhibited weak intramolecular interactions. UV-vis spectroscopy was conducted on both adducts in various solvents to study band shifts.
Article
Materials Science, Multidisciplinary
Shinichi Hata, Yuya Yamaguchi, Riku Nakata, Koudai Kametani, Yukou Du, Yukihide Shiraishi, Naoki Toshima
Summary: The study reports the preparation and thermoelectric properties of double-doped thermoelectric materials drop-cast carbon nanotube (CNT) films. Doping with DBU superbase and electron-donating PAMAM can enhance the chemical stability and power output of CNTs, while prolonging the stability of n-type behavior. This new type of thermoelectric material provides a new avenue for the development of atmospherically stable n-type CNT films.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Polymer Science
Yang Chen, Jie Zhang, Wenhao Xiao, Anfu Chen, Zhixian Dong, Jinbao Xu, Wenhua Xu, Caihong Lei
Summary: 8-Diazabicyclo[5.4.0]undec-7-ene (DBU) was successfully used as an organocatalyst for the ring-opening polymerization (ROP) of epsilon-caprolactone (CL) with benzyl alcohol (BnOH) initiator, leading to well-designed PCLs with a controlled/living polymerization character. Functional initiators were used to obtain end-functionalized PCLs and successfully proceed with block copolymerization of CL with other monomers. Additionally, the reaction mechanism was studied through DFT calculations and NMR measurements.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Chemistry, Physical
Ceren Orak, Asli Yuksel
Summary: Hydrogen is produced from a DBU model solution using different solar-driven hybrid photocatalysts. Graphene supported LaFeO3 is found to be the most promising catalyst. Experimental results show that GLFO achieves higher hydrogen amounts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Alessandro Triolo, Annalisa Paolone, Angelo Sarra, Francesco Trequattrini, Oriele Palumbo, Giovanni BattistaAppetecchi, Fabrizio Lo Celso, Philip Chater, Olga Russina
Summary: The chemical and physical properties as well as the structural features of a Protic Ionic Liquid (PIL) formed by neutralization of a super-strong base with a super-strong acid have been investigated in this study. The role of hydrogen bonding (HB) in affecting the morphology of the PIL has been highlighted, and a comparison between HB features in this PIL and related PILs has been presented. Differences in HB interaction have been observed and explained based on the geometrical properties of the main conformers contributing to the experimental spectra.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Energy & Fuels
Hoang Chinh Nguyen, Thanh Truc Pham, Nguyen Phuong Nguyen, Beyene Hagos Aregawi, Chun-Chong Fu, Colin J. Barrow, Chia-Hung Su, Shao-Jung Wu, Horng-Yi Juan
Summary: This study developed a new approach involving DBU-catalyzed one-pot reaction to produce biodiesel with enhanced reaction efficiency.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Chemistry, Physical
Tatsuya Umecky, Yoshinori Kamesaki, Shogo Tanaka, Toshiyuki Takamuku, Takashi Makino, Mitsuhiro Kanakubo
Summary: The absorption and desorption behaviors of CO2 in DBU-alcohol solutions are influenced by the alkyl group and DBU concentration. The solubility of CO2 is almost the same at 298.2 K, but varies with DBU concentration. The desorption of CO2 is significantly affected by the alkyl group and DBU concentration.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Materials Science, Multidisciplinary
In-Sik Son, Beodl Hwang, Sang-Eun Chun
Summary: Porous carbon can be commercialized as a filter material based on its sorption ability. Mesoporous carbon was fabricated through the pyrolysis of PVDF to create a porous material for microparticle filtration. By suppressing micropore evolution through defluorination process, the carbon synthesized had a lower specific surface area and mainly consisted of mesopores.
KOREAN JOURNAL OF METALS AND MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Pingping Zhao, Xiaoxin Wang, Qiang Wang, Lianzheng Zhang, Dongmei Xu, Jun Gao
Summary: A series of ionic liquid (IL) extractants were developed for the removal of sulfides from fuels. The ILs, synthesized with functionalized 1,8-diazabicyclo[5.4.0]undecano-7-ene (DBU) cations and large volume difluoromethane sulfonimide (NTf2) anion, showed good performance in removing benzothiophene (BT), thiophene (TH), and dibenzothiophene (DBT) in model oil.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Organic
Zhang Xiaoyong, Yu Lili, Gao Junfang, Gong Yue, Zhao Yulong
Summary: A new reaction method has been developed using DBU to promote the reaction between diazo compounds and nitroalkanes, leading to the construction of functionalized hydrazones and tetrahydropyridazines with the structure feature of nitroalkanes. The reaction involves the simultaneous creation of multiple stereocenters using readily available starting materials.
CHINESE JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Organic
Nagarjuna Reddy Guttikonda, Rama Mohana Reddy Jaggavarapu, Muvvala Venkatanarayana, Raja Reddy Kamatham, Akula Nagarjuna, Ravi Kumar Cheedarala, Ravikumar Surepally
Summary: In this study, the novel application of 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) for the conversion of A-Type Misoprostol (A-MP) to B-Type Misoprostol (B-MP) via intramolecular isomerization was successfully applied to separate enantio-pure isomers with no impurities. The chemical structures of A-MP and B-MP were confirmed through spectral analyses of 1H-NMR, 13C-NMR, and mass spectroscopy.
CURRENT ORGANIC SYNTHESIS
(2023)
Article
Chemistry, Multidisciplinary
Xi Fan, Furong Yuan, Jiaqi Wang, Zhibin Cheng, Shengchang Xiang, Huayan Yang, Zhangjing Zhang
Summary: This study reports the first example of structural isomerism in copper clusters, providing valuable insights into the structure-property relationships and complex evolution of phase transformation in nanometallic solids. The results demonstrate that cluster isomerism bridges the gap between small molecular isomerization and solid-solid phase transformation, offering promising opportunities for further research.
Article
Chemistry, Multidisciplinary
Xiaoqing Zheng, Liangji Chen, Hao Zhang, Zizhu Yao, Yisi Yang, Fahui Xiang, Yunbin Li, Shengchang Xiang, Zhangjing Zhang, Banglin Chen
Summary: High-purity ethanol is a promising renewable energy resource, but separating it from trace amounts of water is challenging. This study used two ultramicroporous MOFs (UTSA-280 and Co-squarate) as adsorbents and found that both had excellent sieving effects, with strong water adsorption and minimal ethanol adsorption. Co-squarate showed surprising water adsorption capacity at low pressure, surpassing other reported MOFs. The optimized sieving effect of Co-squarate was attributed to its larger rhombohedral channel, which enhanced guest-guest and guest-framework interactions. Co-squarate columns were able to directly produce ultrapure ethanol (99.9%) from ethanol/water vapor, showing potential for fuel-grade ethanol purification.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Yingbing Zou, Tangxing Pan, Zhiwen Fan, Yunbin Li, Hao Zhang, Yan Ju, Yongfan Zhang, Xiuling Ma, Qianhuo Chen, Shengchang Xiang, Zhangjing Zhang
Summary: This study focuses on regulating the electron transfer channels to enhance the performance of CO2 reduction reaction (CO2RR). The researchers obtained two metal-organic coordination polymers (MOCPs) for CO2RR through rational design. They found that the MOCP with multi-dimensional electron transfer channels exhibited higher electron conductivities and lower band gap, resulting in improved CO2RR performance with higher Faradaic efficiency for CO.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Zhibin Cheng, Yanlong Fang, Wen Dai, Jindan Zhang, Shengchang Xiang, Zhangjing Zhang
Summary: The rational design of metal-organic layers (MOL) with well-exposed catalytic sites and versatile structures can significantly enhance the CO2 reduction/evolution kinetics in Li-CO2 batteries. In this study, a multifunctional MOL (Mn-TTA MOL) with a rich catalytic surface and flower-like conductive structure was fabricated and used as an efficient cathodic catalyst in Li-CO2 batteries. The Mn-TTA MOL-based cells exhibited high discharge capacity, low polarization, excellent rate performance, and superior long-term cycling stability, even at high current densities.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Ying Yang, Jiali Huang, Yingbing Zou, Yunbin Li, Tingting Zhan, Limei Huang, Xiuling Ma, Zhangjing Zhang, Shengchang Xiang
Summary: This study reports a new method for electrochemical reduction of CO2 to formate using metal-organic frameworks (MOFs). Two new N,O-coordinated Zn-MOFs were constructed and showed high selectivity and efficiency for formate production in the CO2RR. These MOFs exhibited faradaic efficiencies of more than 60%, with the self-penetration structure of FJU-127-CH3 achieving a superior formate faradaic efficiency of 90.2% at -1.57 V vs. RHE compared to the common pillared-layer structure of FJU-127-NH2. This work proposes an effective strategy for altering the selectivity of electrocatalytic CO2RR.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
De Zhao, Qinhui Song, Yunbin Li, Lu Li, Furong Yuan, Yisi Yang, Shengchang Xiang, Zhangjing Zhang
Summary: A partially charged Mg-based MOF (FJU-129) with dimethylamine counterions was reported, showing efficient separation of C2H2 from CO2 and rapid adsorption of methylene blue (MB). FJU-129 exhibited high uptake capacity and low isosteric heat of adsorption for C2H2 as well as selective absorption of MB due to pore size and electrostatic effect.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhibin Cheng, Yanlong Fang, Yisi Yang, Hao Zhang, Zhiwen Fan, Jindan Zhang, Shengchang Xiang, Banglin Chen, Zhangjing Zhang
Summary: In this study, a hydrogen-bonded organic framework (HOF-FJU-1) was introduced as a co-catalyst in the cathode material of Li-CO2 batteries for the first time. The HOF-FJU-1 enabled the homogeneous deposition of discharge products and accommodated the volumetric expansion of discharge products. It also facilitated effective interaction between Ru0 nanoparticles and cyano groups, leading to the formation of efficient and uniform catalytic sites for CO2 reduction. The open channels of HOF-FJU-1 were beneficial for the transport of CO2 and Li(+), allowing for rapid redox kinetic conversion of CO2.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Electrochemistry
Minhong Yan, Ying Yang, Tingting Zhan, Jiayi Luo, Limei Huang, Xiuling Ma, Shengchang Xiang
Summary: Metal-organic frameworks (MOFs) have significant research value in the field of electrochemical CO2 reduction reaction. This study demonstrates the superior performance of a newly prepared MOF-CH3 in converting CO2 to formate compared to other reported structural analogues.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Ziwen Mao, Mengqi Zhu, Zhibin Cheng, Jingan Chen, Shicheng Tang, Zhenghong Li, Shengchang Xiang, Jindan Zhang, Zhangjing Zhang
Summary: Defect passivation using aryl ammonium salts is a feasible approach to improve the efficiency and stability of perovskite solar cells. In this study, a series of diammonium iodides were used as passivators on the perovskite surface. The results demonstrate that carrier transport ability plays a more important role than pKa values of the passivators in determining the performance of the solar cells. Passivator molecules with high polarity can enhance carrier transport and reduce nonradiative recombination.
ORGANIC ELECTRONICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Jitao Huang, Yisi Yang, Liangji Chen, Zhangjing Zhang, Shengchang Xiang
Summary: Four porous organic polymers (FJU-CTFs) with strong hydration stability and low skeleton density were prepared through an ionothermal polymerization approach for atmospheric water harvesting. The materials exhibited ultra-high water vapor adsorption capacity, s-type adsorption isotherms, and rapid filling of water vapor at low humidity conditions. They showed excellent working ability and hydrolytic stability after 30 water adsorption-desorption cycles, providing new solutions for the application of porous materials in atmospheric water harvesting and expanding the range of materials used.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2023)
Article
Chemistry, Inorganic & Nuclear
Pingting Ye, Hao Zhang, Shengchang Xiang, Xi Fan, Jia-Qi Wang, Zhangjing Zhang
Summary: In this study, a pair of infinitely extended chains based on Cu-12 clusters were successfully obtained using triple collaborative ligands. These clusters showed excellent thermal stability but exhibited diverse room-temperature photoluminescence phenomena.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2023)
Article
Chemistry, Physical
Ijaz Ullah, Ezzat Khan, Zhangjing Zhang, Shengchang Xiang, Chao Chen, Li Li
Summary: Seven novel molecular salts were synthesized from 4-dimethylaminopyridine organic base and benzoic acid derivatives. The role of additional functional groups in non-covalent interactions was investigated. The structures were analyzed using various techniques and the antimicrobial activities were evaluated.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yuanchao Lv, Xue Yang, Zhile Xiong, Yunbin Li, Jiashuai Liang, Shengchang Xiang, Zhangjing Zhang
Summary: This study proposes a strategy to achieve the switching of excitation-wavelength-dependent emission behavior in mixed-ligand metal-organic frameworks (ML-MOFs) based on a proton-controlled energy transfer process. By adjusting the excitation wavelength, the relative intensities of two emissions can be modulated, leading to the excitation-wavelength-dependent emission behavior. Demonstrating the potential for high-level anti-counterfeiting applications, this research highlights the importance of proton-switched emission behavior in ML-MOFs.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Jiali Huang, Yunbin Li, Hao Zhang, Zhen Yuan, Shengchang Xiang, Banglin Chen, Zhangjing Zhang
Summary: This article reports the structure of a new type of microporous material, hydrogen-bonded organic frameworks (HOFs), with a 4-fold interpenetrated diamond network structure, which exhibits excellent chemical and thermal stability. The activated HOF-FJU-46 shows the highest xenon uptake and xenon/krypton selectivity among the reported HOFs to date.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Engineering, Chemical
Xuan Lin, Yisi Yang, Xue Wang, Si Lin, Zongbi Bao, Zhangjing Zhang, Shengchang Xiang
Summary: This review summarizes the latest developments in metal-organic frameworks (MOFs) and hydrogen-bonded organic frameworks (HOFs) for the separation of ethylene and ethane mixtures, including strategies to improve adsorption capacity and separation selectivity, as well as their efficient separation in practical environments.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
