67399-93-3Relevant academic research and scientific papers
Ferrocene metallopolymers of intrinsic microporosity (MPIMs)
Ambrose, Kenson,Feldblyum, Jeremy I.,Nyayachavadi, Audithya,Rondeau-Gagné, Simon,Walter, Kelly G.,Zhai, Tianran
supporting information, p. 238 - 241 (2022/01/06)
We show here that non-network metallopolymers can possess intrinsic microporosity stemming from contortion introduced by metallocene building blocks. Metallopolymers constructed from ferrocenyl building blocks linked by phenyldiacetylene bridges are synth
A study on the synthesis, characterization, structural optimization, and conformational behaviors of bromo-substituted pyromelliticdiimide-based [2+2] macrocycle as structural units of covalently linked molecular tubes
Bandyopadhyay, Arkasish,Halim, Md. Ershad,Hossain, Md. Elius,Shinmyozu, Teruo
, (2020/04/17)
Synthesis and structural, photo physical, and conformational behaviors at variable temperature and structural optimization of the pyromelliticdiimide-based bromo-substituted [2 + 2] macrocycles are described. Cyclization of the diamine (3) with dianhydride (4) in THF, followed by dehydration of the resultant amic acids resulted in the isolation of the bromo-substituted [2 + 2] macrocycle 1 (4.5%). The dynamic temperature-dependent 1H NMR spectra and MO calculations revealed the presence of two possible conformers for the [2 + 2] macrocycle 1. The UV/Vis spectrum of 1 reveals the presence of a weak intramolecular CT interaction of electron-withdrawing pyromelliticdiimide moiety with the electron-donating hexyloxy-substituted xylyl moiety. The cyclic voltammetric measurement shows two two-electron reversible reduction processes.
Tunable optical properties of push-pull chromophores: End group effect
Tonga, Murat
supporting information, (2020/07/15)
A series of A-π-D-π-A type symmetrical push-pull chromophores with various end groups (e.g., trifluoroacetone, indanone, dicyano, isoxazolone and pyrazolinone) linked through a symmetric π-conjugated backbone (EDOT-phenylene vinylene-EDOT) was synthesized
Supramolecular enantiomeric and structural differentiation of amino acid derivatives with achiral pillar[5]arene homologs
Ji, Jiecheng,Li, Yizhou,Xiao, Chao,Cheng, Guo,Luo, Kui,Gong, Qiyong,Zhou, Dayang,Chruma, Jason J.,Wu, Wanhua,Yang, Cheng
supporting information, p. 161 - 164 (2019/12/30)
Complexation of achiral pillar[5]arenes with chiral amines induced strong circular dichroism (CD) signals. The CD responses differed drastically depending on the nature of the amino acid guest, and they significantly varied and part of them even inverted, upon increasing the length of the alkyl chains of the pillar[5]arenes guests. Accordingly, this tactic allowed for the unprecedented simultaneous enantiomeric and structural differentiation of α-amino esters with homologous molecular hosts.
Linker-Dependent Singlet Fission in Tetracene Dimers
Korovina, Nadezhda V.,Joy, Jimmy,Feng, Xintian,Feltenberger, Cassidy,Krylov, Anna I.,Bradforth, Stephen E.,Thompson, Mark E.
supporting information, p. 10179 - 10190 (2018/07/30)
Separation of triplet excitons produced by singlet fission is crucial for efficient application of singlet fission materials. While earlier works explored the first step of singlet fission, the formation of the correlated triplet pair state, the focus of
Synthesis and characterization of 2,2′-bithiophene end-capped dihexyloxy phenylene pentamer and its application in a solution-processed organic ultraviolet photodetector
Lim, Lih Wei,Teh, Chin Hoong,Daik, Rusli,Sarih, Norazilawati Muhamad,Mat Teridi, Mohd Asri,Muhammad, Fahmi Fariq,Sulaiman, Khaulah
, p. 61848 - 61859 (2016/07/11)
In this work a new solution processable small organic material, namely 2,2′-bithiophene end-capped dihexyloxy phenylene pentamer (BHBT2) was synthesized, characterized and applied in the fabrication of an organic ultraviolet photodetector. The
Simultaneously enhancement of quantum efficiency and color purity by molecular design in star-shaped solution-processed blue emitters
He, Xuehan,Chen, Lei,Zhao, Yongbiao,Chen, Hui,Ng, Siu Choon,Wang, Xizu,Sun, Xiaowei,Matthew Hu, Xiao
, p. 14 - 23 (2016/07/07)
A series of fluorene-free bipolar star-shaped molecules, Sn-Cz-OXD (n = 1-5), with increasing conjugated length in branches were synthesized as high efficient blue emitters for OLEDs. With the extension of conjugated branches, the solid PL quantum efficiency and external quantum efficiency of Sn-Cz-OXD significantly increased with longer spacer, while the emission spectrum of these materials exhibited a blue-shift with enhanced color purity due to the unique molecular design. All materials maintained exceptionally high thermal stability after prolonged heat treatment at 150 °C in air. The photophysical, electrochemical, thermal properties of these emitters were studied in relation to the molecular structure. Nondoped device based on S4-Cz-OXD with structure ITO/PEDOT:PSS/EML/TPBI/LiF/Al emitted stable pure blue light with CIE coordinates of (0.157, 0.146). It exhibited high current efficiency and external quantum efficiency of 4.96 cd A-1 and 4.20%, respectively. These values are among the best results for solution-processed non-doped blue device based on fluorene-free materials, indicating its potential for commercial applications.
Versatile bisethynyl[60]fulleropyrrolidine scaffolds for mimicking artificial light-harvesting photoreaction centers
Kremer, Adrian,Bietlot, Emerance,Zanelli, Alberto,Malicka, Joanna M.,Armaroli, Nicola,Bonifazi, Davide
supporting information, p. 1108 - 1117 (2015/03/05)
Fullerene-based tetrads, triads, and dyads are presented in which [60]fulleropyrrolidine synthons are linked to an oligo(p-phenyleneethynylene) antenna at the nitrogen atom and to electron-donor phenothiazine (PTZ) and/or ferrocene (Fc) moieties at the ?±
Energy-dissipative self-assembly driven in microflow: A time-programmed self-organization and decomposition of metastable nanofibers
Numata, Munenori,Sato, Akiko,Nogami, Rie
supporting information, p. 995 - 997 (2015/08/24)
Energy-dissipative self-assembly in microflow enables us to approach an energetically unstable self-assembled structure, which undergoes morphological transition in a cascade manner from fibers, sheets, and finally "running down" to thermodynamically stable dots, with switching intermolecular interactions.
Polytriazole bridged with 2,5-diphenyl-1,3,4-oxadiazole moieties: A highly sensitive and selective fluorescence chemosensor for Ag+
Cao, Shoupeng,Pei, Zhichao,Xu, Yongqian,Zhang, Ruina,Pei, Yuxin
, p. 45888 - 45896 (2015/06/08)
Fluorescent conjugated polytriazoles (FCP 1-4) containing both 2,5-diphenyl-1,3,5-oxadiazole (OXD) and 1,2,3-triazole moieties in the main chain were synthesized from aromatic diazide (1) and dialkynes (2-5) via click polymerization, respectively. In the polymers, OXDs (fluorophores) and triazole rings (generated via CuAAC acting as metal ion ligands) comprise a fluorescent system. The polytriazoles displayed relatively strong emission with quantum yields in the range of 0.20-0.28 at room temperature in DMF. The study on their ion-responsive properties showed that, although all four FCPs have good selectivity for Ag+, the integration of alkoxy side groups (methoxy for FCP 2, hexyloxy for FCP 3 and 2-ethylhexyloxy for FCP 4) to the main chains of the polytriazoles decreased their sensitivity for Ag+via alteration of the polymer aggregation status and electron density of the main chains. Thus FCP 1 is highly sensitive for Ag+, where its Ksv is as high as 1.44 × 105 M-1 and its lowest detection limit is in the ppb range (4.22 × 10-7 M). This study provides an efficient click approach to the synthesis of a novel fluorescence sensor for Ag+ detection, which could expand the application of click polymerization in designing fluorescence sensors based on the triazole unit. This journal is
