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Synthesis of Calix[4] arene Thia Derivative and Extraction Effect of substituents on Mercury( Ⅱ) and Lead( Ⅱ)

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Journal of Donghua University(English Edition) 2017年第1期34卷 49-52页

作者：陶旭晨何瑾馨 Anhui Provincial Key Laboratory of Textile Fabric Anhui Polytechnic University College of Chemistry Chemical Engineering and BiotechnologyDonghua University

Calix[4]arene derivatives have been reported to possess high selectivity for metal *** order to analyze the extraction effect of substituents on Hg^(2+)and Pb^(2+),calix[4]arene derivatives containing hydroxyl,bromoethoxy and 1,11-dioxa-4,8-dithiahendecene were successfully synthesized,with their extraction effectiveness towards Hg^(2+)and Pb^(2+)were evaluated *** results indicated that the phenolic hydroxyl in calix[4]arene improved the extraction ability on Hg^(2+)by promoting the formation of the negative oxygen ions that could bind with Hg^(2+)by coordination and ionic *** extraction ability of 5,17-dinitro-26,28-(1’,11’-dioxa-4’,8’-dithiahendecene)-calix[4]arene(calix[4]arene thia derivative)was improved slightly due to the better coordination capacity for metal ions after introduction of 1,11-dioxa-4,8-dithiahendecene,which was a chelate-binding *** to Pb^(2+),only 1,11-dioxa-4,8-dithiahendecene on molecule contributed to extraction due to the coordination *** the metal ion with higher charge-to-radius ratio could coordinate with one ligand more stably,Pb^(2+)with higher charge-to-radius ratio than Hg^(2+)was coordinated and extracted by the calix[4]arene thia derivative more ***,extraction rates of the calix[4]arene thia derivative on both ions(Hg^(2+)and Pb^(2+))increased with the increase of pH value in acidic aqueous system(pH<7).

关键词： calixarene thia derivative substituents coordination charge-to-radius ratio

The substituent effect on the excited state intramolecular proton transfer of 3-hydroxychromone

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Chinese Physics B 2019年第9期28卷 150-156页

作者： Yuzhi Song Songsong Liu Jiajun Lu Hui Zhang Changzhe Zhang Jun Du Shandong Province Key Laboratory of Medical Physics and Image Processing Technology School of Physics and ElectronicsShandong Normal University

The excited state intramolecular proton transfer of four derivatives(FM, BFM, BFBC, CCM) of 3-hydroxychromone is *** geometries of different substituents are optimized to study the substituent effects on proton *** mechanism of hydrogen bond enhancement is qualitatively elucidated by comparing the infrared spectra, the reduced density gradient, and the frontier molecular *** calculated electronic spectra are consistent with the experimental *** quantify the proton transfer, the potential energy curves(PECs) of the four derivatives in S0 and S1 states are *** is concluded that the ability of proton transfer follows the order: FM > BFM > BFBC > CCM.

关键词： excited state intramolecular proton transfer(ESIPT) hydrogen bond reduced density gradient(RDG) substituents

Molecular engineering of s-triazine and its derivatives applied in surface modification strategy for enhancing photoelectric performanc of all-inorganic perovskites

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Chinese Chemical Letters 2022年第1期33卷 547-550页

作者： Yifei Yue Shengnan Liu Ning Zhang Zhongmin Su Dongxia Zhu Key Laboratory of Nanobiosensing and Nanobioanalysis at Universities of Jilin Province Department of ChemistryNortheast Normal UniversityChangchun 130024China

We develop the effective modification strategy based on molecular engineering of s-triazine and its derivatives to improve the photoelectric performance of all-inorganic perovskites(AIP)for the first *** surface modification strategy with cyanuric acid successfully increases the PLQY of AIP from 40.55%to 88.15%,and significantly enhances the current of the AIP film under 3 V by almost 20-fold(from4.44 m A to 81.20 m A).This work has proven the effectiveness of improving the photoelectric performances of AIP via s-triazine and its derivatives and also suggested the potential risks of reducing the photoelectric performance of AIP due to inappropriate substituents in conjugated organic ligands.

关键词： All-inorganic perovskites Surface modification s-Triazine substituents Photoelectric performance

Optical and Electrochemical Properties of Non-Peripheral Thioaryl-Substituted Subphthalocyanine as Precursors for Dye-Sensitizer to Develop Photovoltaic Cells

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American Journal of Analytical Chemistry 2014年第15期5卷 1037-1045页

作者： Keiichi Sakamoto Satoru Yoshino Makoto Takemoto Kazuhiro Sugaya Hitomi Kubo Tomoe Komoriya Shinnosuke Kamei Shigeki Furukawa Department of Sustainable Engineering College of Industrial Technology Nihon University Tokyo Japan Academic Major of Applied Molecular Chemistry Graduate School of Industrial Technology Nihon University Tokyo Japan

Phthalocyanines-related compounds, subphthalocyanines, are the homologues consisting of three isoindole units with boron as the center. The absorption maximum of subphthalocyanines, called the Q band, appears around 560 - 630 nm, which is shifted by approximately 100 nm to shorter wavelengths compared to phthalocyanines. Subphthalocyanines are used as precursors to prepare unsymmetric phthalocyanines for ring enlargement reaction. In this decade, phthalocyanines are used for dye-sensitized solar cells (DSSCs), which require strong absorption of far-red light between 700 and 850 nm because of their highly efficiency. Non-peripheral thioaryl-substituted phthalocyanines have been synthesized. They show near-infrared absorption around 780 - 870 nm and have excellent electron transfer properties. However, their lack of affinity to basal plats inhibits their use as DSSC photosensitizer. Therefore, to synthesize unsymmetrical non-peripheral thioaryl-substituted phthalocyanines possessing good affinity to basal plates, the authors prepared subphthalocyanines having thioaryl substituents as precursors. Spectroscopic properties and electron transfer abilities to synthesize non-peripheral thioaryl-substituted subphthalocyanines were estimated using cyclic voltammetry. The Q band of non-peripheral thioaryl-substituted subphthalocyanines shows around 650 nm shifted to longer wavelength by 86 nm in comparison to subphthalocyanine. The compounds show many reduction potentials. They are acceptable electrons in the subphthalocyanine ring, meaning that the compounds have good electron transfer properties.

关键词： Thioaryl substituents Phthalocyanines Subphthalocyanine Cyclic Voltammetry Precursor for Dye-Sensitizer

Carbene triel bonds with N-heterocyclic carbenes as electron donors

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Carbene triel bonds with N-heterocyclic carbenes as electron...