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Synthesis,crystal structure and photoluminescence of a novel tetra-nuclear calcium complex[{Ca(C15H8O7S)-(H2O)(DMSO)}3{Ca(C15H8O7S)(DMSO)2}]·4DMSO

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Science China Chemistry 2004年第5期47卷 396-406页

作者： zhang zunting GUO Yaning LIU Qianguang School of Chemistry and Materials Science Shaanxi Normal University Xi'an 710062 China School of Chemistry and Materials Science Shaanxi Normal University Xi'an 710062 China School of Chemistry and Materials Science Shaanxi Normal University Xi'an 710062 China

The sulfonate derivate of chrysin coordinates with Ca2+ to form a novel tetra-nuclear calcium complex [{Ca(C15H8O7S)(H2O)(DMSO)}3{Ca(C15H8O7S)(DMSO)2}]·4DMSO. The struc- ture of the complex is characterized by IR, H NMR and X-ray single-crystal diffraction analysis. 1 The results show that the complex crystallizes in triclinic, space group Pi, cell parameter a = 1.4725(6) nm, b = 1.6480(7) nm, c = 2.1006(8) nm, α = 83.928(7)o, β = 85.938(7)o, γ = 85.212(7)o, V = 5.041(3) nm3, Dc = 1.476 g/cm3, Z = 2, μ =0.568 nm?1, F(000) = 2324, R = 0.0778, wR = 0.1821. In the complex, four Ca2+ which are bridged by four 5-hydroxyanion-7-dihydro-xyfla- vone-6-sulfonate ligands with their carbonyl and 5-hydroxyanion group build an approximate square. The coordination number of Ca2+ is 7 and the coordinated atoms are all oxygen from the carbonyl, hydroxyl and suflo-group of 5-hydroxyanion-7-hydroxyflavone-6-sulfonate, H2O and DMSO. Four ligands locate on two sides of the square. Two of them on the same side are almost paralleled and aromatic p-p stacking exists between them. Ligands on the opposite side are nearly perpendicular to each other. Meanwhile, the solid of title compound has the photoluminescent phenomenon. The title compound emits green fluorescence (λem = 520 nm) when it is excited at the wavelength of 410 nm and its photoluminescent mechanism is dis- cussed.

关键词： chrysin, sulfonation, tetra-nuclear calcium complex, crystal structure, photoluminescence.

Synthesis of 2H-benzo[g]furo/thieno/pyrrolo[2,3-e]indazoles via Intramolecular Dehydrogenation Photocyclization

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Chinese Journal of Chemistry 2021年第8期39卷 2213-2219页

作者： Wei zhang Ping Wang Xi zhang Rui Wang Tao Wang Zhicun Liu zunting zhang Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of ChinaSchool of Chemistry and Chemical Engineeringand Basic Experimental Teaching CenterShaanxi Normal UniversityXi'anShaanxi 710062China

A catalyst-,acid-and base-free,environmental-friendly method for synthesis of 2/7-benzo[g]furo[2,3-e]indazoles,2H-benzo[g]-thieno[2,3-e]indazoles and 2H-benzo[g]pyrrolo[2,3-e]indazoles via UV light irradiation of 3-phenyl-4-(2-heteroaryl)pyrazoles(aryl=furanyl,thiophenyl and N-methylpyrrolyl)in EtOH/H_(2)O at room temperature under argon atmosphere was described.

关键词： Indazoles 6π-electroncyclization Photocyclization Dehydrogenative annulation Chemo-selectivity

Synthesis of 5,6-Diarylpyridin-2（1H）-ones from Isoflavones

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Chinese Journal of Chemistry 2013年第8期31卷 1027-1032页

作者： Mulin Zhu zunting zhang Dong Xue Jinfeng Qiao Yong Liang Stanislaw F. Wnuk Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China and School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an Shannxi 710062 China Department of Chemistry and Biochemistry Florida International University Miami Florida 33199 United States Email: zunting zhang (zhangzunting@***)[*]Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China and School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an Shannxi 710062 China

A simple method for the cyclocondensation of substituted isoflavones with cyanoacetamide in the presence of sodium hydroxide to give an array of 3-cyano-5,6-diarylpyridin-2（1H）-ones in good yields is reported.

关键词： isoflavones cyclocondensation 3-cyano-5,6-diarylpyridin-2(1H)-ones

苯并香豆素羧酸衍生物的合成及荧光性能研究（英文）

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有机化学 2018年第6期38卷 1462-1468页

作者：史娟张尊听陕西师范大学化学化工学院教育部药用资源与天然药物化学重点实验室西北濒危药材资源开发国家工程实验室西安710062 陕西理工大学化学与环境科学学院陕西省催化重点实验室汉中723001

合成了具有较高荧光性能的香豆素衍生物:7-羟基-6-氧代-6H-苯并香豆素-8-羧酸(3a)及2,3-苯并-7-羟基-6-氧代-6H-苯并香豆素-8-羧酸(3b),通过单晶X射线衍射对化合物结构进行了表征.3a和3b在乙醇溶液、晶体结构下具有较高的荧光量子产率(... 详细信息

合成了具有较高荧光性能的香豆素衍生物:7-羟基-6-氧代-6H-苯并香豆素-8-羧酸(3a)及2,3-苯并-7-羟基-6-氧代-6H-苯并香豆素-8-羧酸(3b),通过单晶X射线衍射对化合物结构进行了表征.3a和3b在乙醇溶液、晶体结构下具有较高的荧光量子产率(Ф_F).3a晶体结构存在羧酸二聚体,较强的分子间作用力使其荧光量子效率可达0.32,组成二聚体单元的所有原子处在同一平面内,3a的分子刚性较强.二聚体单元间则通过C—H…O分子间氢键以边对面的堆积方式相连.

关键词：苯并香豆素羧酸衍生物晶体结构二聚体荧光性能

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光照法辅助观察化合物结晶过程

化学教学 2022年第12期 84-86页

作者：张尊听萨如拉董丽英贺云陕西师范大学化学化工学院陕西西安710119

将激光器应用于固体化合物在溶液中结晶的性质实验,可使激光束穿过饱和溶液观察硝酸钾结晶过程中溶液内部的变化过程。该拓展性实验有助于学生加深理解和认识化合物的结晶现象和过饱和溶液等概念,有助于培养学生“宏观辨识与微观探析”... 详细信息

将激光器应用于固体化合物在溶液中结晶的性质实验,可使激光束穿过饱和溶液观察硝酸钾结晶过程中溶液内部的变化过程。该拓展性实验有助于学生加深理解和认识化合物的结晶现象和过饱和溶液等概念,有助于培养学生“宏观辨识与微观探析”的化学学科核心素养。

关键词：拓展性实验光照法硝酸钾结晶过程实验探究

Synthesis of Chrysenopyrazoles and Fluorescence Properties

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Synthesis of Chrysenopyrazoles and Fluorescence Properties

Gold（Ⅰ）-Catalyzed Synthesis of Six-Membered P,O-Heterocycles

中国化学会第十八届全国有机分析及生物分析学术研讨会

作者： Chenchen Li zunting zhang zhang Jin Longzhu Liu Tuo Ma Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China and School of Chemistry and School of Chemistry and Chemical Engineering Shaanxi Normal University

Chrysenopyrazoles were synthesized from o-hydroxyacetophenones and aryl halides via four steps. Intermediate 3-phenyl-4-arylpyrazoles were obtained in good yields. Irradiating 3-phenyl-4-arylpyrazoles, dehydration product chrysenopyrazoles and dehydrogenation product hydroxy-chrysenopyrazoles were obtained in the meantime. The fluorescence properties of chrysenopyrazoles were determined, and hydroxy-chrysenopyrazolesemit yellowish-green light in alkalinity due to excited-state intramolecular proton transfer（ESIPT）.

关键词： Chrysenopyrazoles ESIPT dehydration dehydrogenation fluorescence properties

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Gold（Ⅰ）-Catalyzed Synthesis of Six-Membered P,O-Heterocyc...

Intramolecular Dehydrogenation Photocyclization of 3-(2-Hydroxyphenyl)-4-(2-aryl)pyrazoles(Aryl=furanyl,thiophenyl)

中国化学会·第十三届全国物理有机化学学术会议

作者： Shan zhang Haiyang Cheng Sheng Mo Shiwei Yin zunting zhang Tao Wang School of Chemistry and Chemical Engineering Shaanxi Normal University

＜正＞Heterocyclic phosphorus compounds are useful in organic synthesis,medicinal chemistry,and material ***,we report the synthesis of six-membered P,O-heterocycles from dialkynylphosphine *** using a gold（Ⅰ） complexes,the chemoselectivity of the reaction was switched from literature-reported double hydration to a hydration/intramolecular cyclization cascade.

关键词：

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Intramolecular Dehydrogenation Photocyclization of 3-(2-Hydr...

Al^(3＋)可视化水溶性分子荧光探针的合成及其作用研究

中国化学会第十三届全国有机合成化学学术研讨会

作者： Wang Ping Wang Tao Ding Ru zhang Xi Jing Sisi zhang zunting School of Chemistry and Chemical Engineering Shaanxi Normal University

As well-known,cyclization was the key step in the synthetic reactions of fragrance fused heterocylic *** cyclization reaction for the synthesis of polycydic aromatic hydrocarbons or fused heterocyclic aromatic ring reaction can be divided into two categories:oxidation photocyclization and elimination *** such as O or I were necessary for the intramolecular oxidation *** photocyclization usually requests a leaving group in a certain location,such as halogen and hydroxyl,*** metal-catalyzed dehydrogenation photocyclizations were also *** on our previous work,we synthesized dehydration products 4 by the photocyclization of 3-(2-hydroxy-phenyl)-4(2-aryl)pyrazoles 2(aryl=furanyl,thiophenyl and N-methylpyrrolyl).Surprisingly,besides products 4,dehydrogenation products 3 were also *** reaction was catalyst-,acid-and base-free,*** Et OH-H-2O(volume ratio:1:2) as solvent was friendly to the environment.

关键词： Dehydrogenation Photocyclization 3-(2-hydroxy-phenyl)-4(2-aryl)pyrazoles Photochemistry

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有机化学 2014年第9期34卷 1780-1785页

作者：马拓张瑾刘龙珠贺云张尊听教育部药用资源与天然药物化学重点实验室西北濒危药材资源开发国家工程实验室陕西师范大学化学化工学院西安710062

设计并合成了3种嘧啶并[1,6-a]苯并咪唑磺化物:4-(2'-羟基苯基)嘧啶并[1,6-a]苯并咪唑-5'-磺酸钠(L1)、4-(2'-羟基苯基)嘧啶并[1,6-a]苯并咪唑-3',5',10-三磺酸钠(L2)和4-(2',4'-二羟基苯基)嘧啶并[1,6-a]苯并咪唑-5'-磺酸钠(L3),运用质谱和核磁等方法对其结构进行表征.运用荧光光谱法考察了L1,L2和L3对Al3+的识别作用,结果表明:在水溶液中L2能与Al3+配合,配合后的荧光光谱强度增强,而加入其它金属离子(Cu2+,Hg2+,K+,Mg2+,Na+,Ni2+,Pb2+,Zn2+,Cr3+,Fe3+)基本没有变化,表明L2对Al3+具有专一的识别性.通过Job's plot曲线和荧光滴定实验确定L2和Al3+以1∶2的比例进行配合,L2对Al3+的检出限为0.073μmol/L,并且L2能够可视化检测Al3+.

关键词：配位铝离子荧光探针激发态内分子质子转移可视化检测