2672-58-4Relevant academic research and scientific papers
Self-assembly of homochiral porous supramolecular organic frameworks with significant CO2 capture and CO2/N2 selectivity
Zhou, Yue,Liu, Bing,Sun, Xiaodong,Li, Jiantang,Li, Guanghua,Huo, Qisheng,Liu, Yunling
, p. 6653 - 6659 (2017)
A pair of homochiral porous supramolecular organic frameworks (JLU-SOF1-R and JLU-SOF1-S) has been assembled from brand-new enantiopure blocks via hydrogen bonding and π-π interactions. The frameworks not only maintain crystallinity well until 250 °C but
Excited State Luminescence of Multi-(5-phenyl-1, 3, 4-oxadiazo-2-yl) benzenes in an Electron-Donating Matrix: Exciplex or Electroplex?
Yang, Chih-Chiang,Hsu, Chia-Jung,Chou, Pi-Tai,Cheng, Hsu Chun,Su, Yuhlong Oliver,Leung, Man-Kit
, p. 756 - 768 (2010)
Multi-(5-phenyl-1, 3, 4-oxadiazo-2-yl)benzenes show emission in organic solvents from ultraviolet to blue (339-447 nm). The reduction potentials E 1/2red cover a large range of -2.11 V for 2, 5-diphenyl-1, 3, 4-oxadiazole to -0.76 V for 1, 2, 3, 4, 5, 6-hexa(5-phenyl-1, 3, 4-oxadiazo-2-yl)benzene. An unexpectedly wide spectral range of the oxadiazole (OXD) exciplex emissions in PVK is observed, ranging from 406 to 603 nm. The OXDs also exhibit similar electroluminescence (EL) when blended into polyvinylcarbazole (PVK). A linear correlation between the λ max of the electroluminescence and photoluminescence is observed, implying that the emission mechanisms in both processes are similar. In addition, the linear correlation between the E1/2red versus λmax of EL (eV) reflected that the term of the charge-transfer configuration of the contact electron-hole pair plays a major role in the exciplex emission. The exciplex EL of 1, 2, 5-tri(5-phenyl-1, 3, 4-oxadiazo-2-yl)benzene (5) could be as high as 1.0 cd/A. Since the exciplex emission usually has a large Stokes shift, this provides a window for us to generate duo emissions for near white light EL with high efficiency. Among the devices we tried, the device of PVK/2-tert-butylphenyl-5-biphenyl-1, 3, 4-oxadiazole/5/2, 5, 8, 11-tetra-tert-butylperylene (100:40:40:4) gave EL with good current efficiency of 1.63 cd/A.
Robust Ordered Bundles of Porous Helical Nanotubes Assembled from Fully Rigid Ionic Benzene-1,3,5-tricarboxamides
Wu, Xibo,Wang, Daoliang,Chen, Mingming,Wei, Chengsha,Wei, Shenghui,Huang, Ningdong,Li, Liangbin,Zhang, Guobing
, p. 15388 - 15394 (2015)
Size-controlled and ordered assemblies of artificial nanotubes are promising for practical applications; however, the supramolecular assembly of such systems remains challenging. A novel strategy is proposed that can be used to reinforce intermolecular no
Synthesis of sulfido- and thiolato-bridged Ir3 cluster and its reactions with alkyne and isocyanide including highly regioselective cyclotrimerization of methyl propiolate
Saito, Akihiro,Seino, Hidetake,Kajitani, Hidenobu,Takagi, Fusao,Yashiro, Akihito,Ohnishi, Takeshi,Mizobe, Yasushi
, p. 5758 - 5764 (2006)
Reactions of a sulfido- and thiolato-bridged diiridium complex [(Cp*Ir)2(μ-S)(μ-SCH2CH2CN)2] (Cp* = η5-C5Me5) with [(Cp*MCl)2(μ-Cl)su
An acylhydrazone-based AIE organogel for the selective sensing of submicromolar level Al3+and Al(iii)-based metallogel formation to detect oxalic acid
Wang, Bin,Li, Juan,Shui, Shipeng,Xu, Jie
, p. 1899 - 1903 (2021)
A tripodal acylhydrazone derivative (L) was designed, synthesized, and fully characterized. Through the investigation, it had a typical bluish-green aggregation-induced emission (AIE) effect. Notably, the gelator was reported to accurately detect Al3
Lyotropic supramolecular helical columnar phases formed by C 3-symmetric and unsymmetric rigid molecules
Wang, Daoliang,Huang, Youju,Li, Junjun,Xu, Lu,Chen, Mingming,Tao, Jiaojiao,Li, Liangbin
, p. 685 - 690 (2013)
Unlike thermotropic liquid-crystalline C3-symmetric molecules with flexible chains, the herein-designed fully rigid three-armed molecules (C3-symmetric and unsymmetric) create a fancy architecture for the formation of lyotropic liqui
Redox-Active Two-Dimensional Covalent Organic Frameworks (COFs) for Selective Reductive Separation of Valence-Variable, Redox-Sensitive and Long-Lived Radionuclides
Deng, Yun,Guo, Xinghua,Jia, Zhimin,Li, Shoujian,Li, Xiaofeng,Li, Yang,Ma, Lijian,Tian, Yin,Zhang, Meicheng
, p. 4168 - 4175 (2020)
We report the first example of 2D covalent organic framework nanosheets (Redox-COF1) for the selective reduction and in situ loading of valence-variable, redox-sensitive and long-lived radionuclides (abbreviated as VRL nuclides). Compared with sorbents ba
Synthesis and characterization of linear and cyclic endothelin peptides on PEGylated poly(O-benzyl ether) dendrimeric supports
Siyad,Kumar, G.S. Vinod
, p. 80 - 91 (2015)
Synthesis and evaluation of poly(ethylene glycol) grafted poly(O-benzyl ether) dendrimers for polymer assisted organic reaction is presented here. Initially a cross-linked polymer Polystyrene-Poly(ethyleneglycol)dimethacrylate-Vinylbenzylchloride (PS-PEGDMA-VBC) was synthesized by radical suspension polymerization. 1,3,5-tris(hydroxymethyl)benzene dendron was prepared by the reduction of trimesic acid using LiAlH4. Dendrimers were generated on 2 mol% cross-linked resin by repetitive Williamson etherification and thionyl chloride reactions. The dendrimer was cleanly and efficiently prepared up to third generations (G3) and each stage of reaction was quantitatively and qualitatively analyzed. Poly(ethylene glycol) having different chain lengths (400 Da and 1500 Da) were grafted to G3 generation and tested for various physico-chemical properties. The utility of supports were checked by synthesizing linear as well as disulfide bonded endothelin peptides in high yield and purity by standard Fmoc method.
Hierarchical Co-Assembly Enhanced Direct Ink Writing
Li, Longyu,Zhang, Pengfei,Zhang, Zhiyun,Lin, Qianming,Wu, Yuyang,Cheng, Alexander,Lin, Yunxiao,Thompson, Christina M.,Smaldone, Ronald A.,Ke, Chenfeng
, p. 5105 - 5109 (2018)
Integrating intelligent molecular systems into 3D printing materials and transforming their molecular functions to the macroscale with controlled superstructures will unleash great potential for the development of smart materials. Compared to macromolecul
Readily useable bulk phenoxazine-based covalent organic framework cathode materials with superior kinetics and high redox potentials
Meng, Zhiying,Zhang, Ying,Dong, Mengqing,Zhang, Yue,Cui, Fengmin,Loh, Teck-Peng,Jin, Yinghua,Zhang, Wei,Yang, Haishen,Du, Ya
, p. 10661 - 10665 (2021)
Redox-active covalent organic frameworks (COFs) with dense redox sites are promising electrical energy storage materials with robust architectures, high surface areas, insolubility in electrolytes, and open pores for electrolyte transportation. However, low redox potentials and poor electrical conductivity of pristine COFs often result in low accessibilities of redox-active sites and slow redox kinetics, greatly limiting their practical applications. Herein, we report the design and synthesis of two novel p-type phenoxazine-based COFs (DAPO-COFs) with high redox potentials (~3.6 V vs. Li/Li+) and excellent electrical conductivities. Simply blended with conductive additives (CAs) and binders, pristine bulk DAPO-COFs without pre-composition with CAs or extra exfoliation are readily useable as cathode materials for lithium-ion batteries. Both as-synthesized DAPO-COF powders displayed superior active-site accessibility, ultrafast redox kinetics, and remarkable cycling stability. This work provides new perspectives on the development of readily useable COF-based cathode materials, and contributes to the advancement of eco-friendly and sustainable organic-based energy storage devices. This journal is
