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Highly selective and turn-on fluorescence probe with red shift emission for naked-eye detecting Al^(3+)and Ga^(3+)based on metal-organic framework

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Chinese Chemical Letters 2022年第1期33卷 541-546页

作者： Linhui Wu Shuli Yao Hui Xu Tengfei Zheng Suijun Liu Jinglin Chen Na Li herui wen School of Chemistry and Chemical Engineering Jiangxi University of Science and TechnologyGanzhou 341000China School of Materials Science and Engineering Tianjin Key Laboratory of Metal and Molecule-Based Material ChemistryNankai UniversityTianjin 300350China

A novel ZnII-based metal-organic framework with the formula of{[Zn_(2)(BBIP)_(2)(NDC)_(2)]·H_(2)O}n(JXUST-5)derived from 3,5-bis(benzimidazol-1-yl)pyridine(BBIP)and 1,4-naphthalenedicarboxylic acid(H_(2)NDC)has been *** adjacent Zn^(II)ions are linked through two BBIP ligands to form a[Zn_(2)(BBIP)_(2)]secondary building unit(SBU).The neighbouring SBUs are further connected by NDC^(2-)withμ2-η^(1):η^(1)andμ2-η^(1):η^(1):η^(1)bridging modes to form a two-dimensional(2D)*** analysis shows that JXUST-5 could be simplified as an uninodal fes topology with a point symbol of{4.8^(2)}.Furthermore,the 2D framework net could be extended through C-H···πinteraction to form the three-dimensional supramolecular *** experiments suggest that JXUST-5 could selectively and sensitively recognize Al^(3+)and Ga^(3+)through fluorescence enhancement effect along with a relatively large red *** detection limits for Al^(3+)and Ga^(3+)are 0.17 and 0.69 ppm,***,the sensing process for both Al^(3+)and Ga^(3+)could be directly observed with naked eyes under 365 nm UV ***,JXUST-5 could be recycled at least five times as a fluorescent sensor toward Al^(3+)and Ga^(3+),which is the second example of turn-on MOF based fluorescent sensor toward Ga^(3+).

关键词： Metal-organic frameworks Fluorescence probe Naked-eye detection Turn-on effect Red shift emission Al^(3+)and Ga^(3+)

Emissive Mononuclear Cu（Ⅰ） Triphenylphosphine Complexes with Functionalized 6-tert-Butoxycarbonyl-2,2 ＇-bipyridine

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Chemical Research in Chinese Universities 2018年第1期34卷 19-23页

作者： LUO Yansheng ZENG Xuehua WANG Wanman CHEN Jinglin HE Lihua ZHANG Mengli LIU Suijun wen herui School of Metallurgy and Chemical Engineering Jiangxi University of Science and Technology Ganzhou 341000 P. R. China

Two new emissive mononuclear copper（Ⅰ） triphenylphosphine complexes with functionalized 6-tert- butoxycarbonyl-2,2＇-bipyridiue chelating ligands were prepared and characterized. Each Cu（Ⅰ） cation has a markedly distorted P2N2 tetrahedral array with two different Cu--N bond distances, due to the addition of the bulky tert-butoxycarbonyl group at the 6-position of the 2,2＇-bipyridyl ring. A weak low-energy broad absorption band appears at 330-500 nm in their CH2Cl2 solutions, which is influenced by the methylation of the 2,2＇-bipyridyl ring. At room temperature, the photoluminescence can be clearly observed both in degassed CH2Cl2 solution and in the solid state, because of the introduction of the bulky tert-butoxycarbonyl substituent, and the emission properties are remarkably affected by both the methylation and the alkoxycarbonyl variation of the 2,2＇-bipyridyl ring. It is shown that the introduction of the bulky tert-butoxyearbonyl group is favorable for improving the emission properties of the 6-alkoxycarbonyl-2,2＇-bipyridine-based cuprous complexes.

关键词： Cuprous Methylation Alkoxyearbonyl Phosphine Lnminescence

Blue-shifted and naked-eye recognition of H_(2)PO_(4)- and acetylacetone based on a luminescent metal-organic framework with new topology and good stability

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Chinese Chemical Letters 2023年第4期34卷 584-589页

作者： Shuli Yao Hui Xu Tengfei Zheng Yunwu Li Haiping Huang Jun Wang Jinglin Chen Suijun Liu herui wen School of Chemistry and Chemical Engineering Jiangxi Provincial Key Laboratory of Functional Molecular Materials ChemistryJiangxi University of Science and TechnologyGanzhou 341000China Fujian Key Laboratory of Functional Marine Sensing Materials Minjiang UniversityFuzhou 350108China Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology School of Chemistry and Chemical EngineeringLiaocheng UniversityLiaocheng 252000China

Fluorescence detecting both organic and inorganic analytes has aroused tremendous scientific interests, because fluorescence techniques have high sensitivity and are easy to operate. A new threedimensional(3D) MOF {[(CH_(3))_(2)NH_(2)][Zn_(3)(bbip)(BTDI)1.5(OH)]·DMF·MeOH·3H_(2)O}n(JXUST-13, bbip = 2,6-bis(benzimidazol-1-yl)pyridine and H_(4)BTDI = 5,5-(benzo[c][1,2,5]thiadiazole-4,7-diyl)diisophthalic acid)with new 4,4,8-connceted topology has been successfully synthesized and structurally characterized. Importantly, JXUST-13 could recognize H_(2)PO_(4)-and acetylacetone(Acac) by obvious fluorescence blue shift and slight enhancement with the detection limits of 2.70 μmol/L and 0.21 mmol/L, respectively. In addition, JXUST-13 exhibits relatively good thermal stability, chemical stabilities as well as reusability, and the analytes could be distinguished by naked eye and fluorescence test paper. Remarkably, JXUST-13 is the first dual-responsive MOF sensor based on fluorescence blue shift for the detection of H_(2)PO_(4)-and Acac with good selectivity in a handy, economic, and environmentally friendly manner.

关键词： Metal-organic framework Fluorescence sensing Naked-eye recognition Fluorescence blue shift H_(2)PO_(4) −and acetylacetone

Synthesis and fluorescence properties of Hydrogen-bonded organic frameworks(HOFs) based on tetrakis(4-carboxyphenyl)ethylene(H4TCPE)

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Synthesis and fluorescence properties of Hydrogen-bonded org...

中国化学会2019年中西部地区无机化学化工学术研讨会

作者： wenhai Yi Junjie Hu Jiali Zhang herui wen School of Chemistry and Chemical Engineering Jiangxi University of Science and Technology

Porous materials can be categorized into sub-issues by the types of intermolecular interactions (metal coordination,covalent,hydrogen bond,etc.),including the well-known zeolites,metal-organic frameworks(MOFs) and covalent organic frameworks (COFs),as well as the titled hydrogen-bonded organic frameworks(HOFs),*** this work,three HOFs[TCPE?bpa](1),[TCPE?bpe](2) and[TCPE?4,4-bipy](3) have been synthesised and *** are single crystal compounds with 3D structures formed by hydrogen bonding of TCPE and bpa/bpe/4,*** 1 and 2 are crystallized in the monoclinic P2/C space *** 3 is crystallized in the triclinic P-1 space *** analysis showed that the luminescence of compounds 1 and 2 is mainly caused by the luminescence properties of the ligand TCPE and hydrogen bonding with bpa/*** 3 annihilates the fluorescence of the ligand TCPE due to hydrogen bonding of the 4,*** possible reasresults in an increase in strengthon is due to energy transfer between ligand TCPE and bpa/bpe/4,*** HOFs can be applied to fluorescent materials and fluorescent *** an emerging supramolecular porous framework material,there are enormous application potentials in future life and production,such as gas selective adsorption,storage and solvent transport.

关键词： HOFs fluorescence energy transfer fluorescent probesas

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微波辐射壳聚糖硫酸盐催化合成乙酸正丁酯

石油化工 2005年第4期34卷 364-367页

作者：王科军薛珺李凤仪温和瑞南昌大学应用化学研究所江西南昌330047 赣南师范学院化学与生命科学系江西赣州341000

采用微波辐射技术,以壳聚糖硫酸盐为酯化反应催化剂合成乙酸正丁酯。利用正交实验设计和单因素实验考察了微波辐射功率、微波辐射时间、催化剂用量、反应物配比等因素对酯化反应的影响。实验结果表明,壳聚糖硫酸盐催化剂在乙酸正丁酯的... 详细信息

采用微波辐射技术,以壳聚糖硫酸盐为酯化反应催化剂合成乙酸正丁酯。利用正交实验设计和单因素实验考察了微波辐射功率、微波辐射时间、催化剂用量、反应物配比等因素对酯化反应的影响。实验结果表明,壳聚糖硫酸盐催化剂在乙酸正丁酯的合成中显示出较好的催化效果,而且该法具有操作简便、反应速率快、节约能源等优点,在冰醋酸用量4.17mL、微波输出功率260W、辐射时间15min、催化剂质量分数1.0%、n(正丁醇)∶n(乙酸)=3∶2的优化条件下,酯化率可达96.1%。

关键词：微波辐射壳聚糖硫酸盐催化剂乙酸正丁酯正交实验设计

煅烧气氛对LuGd2Ga3Al2O12:Ce^3+荧光粉的发光性质影响

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中国稀土学报 2020年第5期38卷 594-601,I0001页

作者：彭光怀邹征刚廖金生温和瑞江西理工大学冶金与化学工程学院江西赣州341000 赣南师范大学化学化工学院江西赣州341000

在O2, 2%H2+98%Ar气氛下,通过高温固相法制备了LuGd2Ga3Al2O12:0.5%Ce^3+(原子分数)荧光粉试样。利用荧光光谱、荧光衰减曲线和热释光谱研究了气氛对试样发光性质的影响。结果表明:O2气氛下煅烧有助于抑制氧空位的生成,缩短荧光寿命,而... 详细信息

在O2, 2%H2+98%Ar气氛下,通过高温固相法制备了LuGd2Ga3Al2O12:0.5%Ce^3+(原子分数)荧光粉试样。利用荧光光谱、荧光衰减曲线和热释光谱研究了气氛对试样发光性质的影响。结果表明:O2气氛下煅烧有助于抑制氧空位的生成,缩短荧光寿命,而还原气氛下煅烧及热处理有利于Ce^4+还原成Ce^3+离子,并相应生成氧空位;还原性气氛较氧化性气氛下煅烧所得的试样发光强度更强、荧光寿命也更长,并出现了明显的余辉现象。

关键词：石榴石煅烧气氛发光闪烁材料稀土

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稀土配合物单分子磁体研究进展

化工进展 2016年第9期35卷 2802-2817页

作者：董飘平梁福永邹征刚温和瑞江西理工大学冶金与化学工程学院江西赣州341000

单分子磁体在超高密度存储、自旋电子器件、量子计算机等领域具有潜在的应用。稀土离子因其存在高电子自旋基态以及很强的自旋轨道耦合和磁各向异性,被广泛应用于磁性材料的制备。近年来,稀土离子用来提高单分子磁体的自旋翻转能垒的研... 详细信息

单分子磁体在超高密度存储、自旋电子器件、量子计算机等领域具有潜在的应用。稀土离子因其存在高电子自旋基态以及很强的自旋轨道耦合和磁各向异性,被广泛应用于磁性材料的制备。近年来,稀土离子用来提高单分子磁体的自旋翻转能垒的研究备受关注,大量具有单分子磁体性能的稀土配合物被合成。本文综述了稀土配合物单分子磁体的合成、结构与磁性研究进展,着重介绍了单核、双核、三核、四核、五核及六核稀土配合物单分子磁体的结构与磁学性质。研究表明,应用元素镝构筑的稀土配合物单分子磁体性能最好,且随着配合物核数的增加,单分子磁体的特性更加明显。展望稀土配合物单分子磁体的研究,今后的研究重点是合成高核稀土配合物和提高磁各向异性能垒。

关键词：单分子磁体单离子磁体稀土配合物磁性

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P3HT/非富勒烯受体异质结有机太阳电池

化学进展 2019年第9期31卷 1221-1237页

作者：沈赵琪程敬招张小凤黄微雅温和瑞刘诗咏江西理工大学冶金与化学工程学院

非富勒烯受体材料在分子设计、光吸收及能级等多方面具有极其丰富的可调控性,使得基于非富勒烯电子受体的本体异质结有机太阳电池(BHJ OSC)近年得以迅速发展。P3HT聚合物作为被广泛研究的第二代有机半导体材料,其价格便宜、具有较好的... 详细信息

非富勒烯受体材料在分子设计、光吸收及能级等多方面具有极其丰富的可调控性,使得基于非富勒烯电子受体的本体异质结有机太阳电池(BHJ OSC)近年得以迅速发展。P3HT聚合物作为被广泛研究的第二代有机半导体材料,其价格便宜、具有较好的结晶性以及优异的载流子传输性能,是经典的电子给体材料。本文综述了近年来以P3HT聚合物为给体、非富勒烯类有机化合物为电子受体的有机太阳电池研究进展,探讨了P3HT/非富勒烯受体BHJ OSC中,影响器件效率提升的关键因素,以及电子受体优化设计方面的相应要求。对基于P3HT/非富勒烯受体BHJ OSC器件的研究前景进行了展望。

关键词：非富勒烯受体有机太阳电池 P3HT 本体异质结开路电压短路电流填充因子

铬酸根作为抗衡离子的钕18-冠-6配合物的合成与晶体结构

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中国稀土学报 2018年第1期36卷 86-92页

作者：张世勇刘竞艳李望任永军温和瑞江西理工大学材料科学与工程学院江西赣州341000 赣南师范大学化学化工学院江西赣州341000

Nd2O3,Cr O3,18-冠-6在稀HCl,稀HBr,蒸馏水3种不同条件下混合反应,分别合成得到了3个不同的新型配合物[Nd(H_2O)9](18-crown-6)3(Cr O3Cl)3·0.5H_2O(1),[Nd(H_2O)9](18-crown-6)3(Cr O3Br)3·0.5H_2O(2),[Nd(18-crown-6)(Cr_2O_7)(H_2O)]2(Cr_2O_7)·H_2O(3)。单晶结构分析表明配合物1和2属于异质同晶,结晶于R-3空间群,而配合物3结晶于P-1空间群。配合物1和2中Nd3+与9个配位水形成单核[Nd(H_2O)9]3+阳离子,该阳离子通过氢键作用被3个对称性相关的18-冠-6分子包裹起来,形成一个具有三次轴对称性的{[Nd(H_2O)9](18-crown-6)3}3+超分子笼。配合物3中Nd3+也是九配位的,它被1个18-冠-6分子的6个氧原子所螯合,并进一步与2个(Cr_2O_7)2-阴离子中的2个O原子和1个水分子配位,相邻的Nd3+通过桥联的(Cr_2O_7)2-阴离子的配位作用形成一维链状结构。

关键词：钕铬 18-冠-6 氢键晶体结构