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学者姓名：孙瑞卿
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Abstract ：
二维红外光谱普遍应用于温度对蛋白质结构的影响和中草药鉴别等领域。我们课题组在X射线单晶结构分析的基础上，利用热扰动和磁微扰的二维IR-COS研究了化合物中在热微扰和磁微扰下的二维相关红外光谱与化合物结构的关系规律。为进一步研究化合物磁性机理、生物应用等方面提供理论和实验依据。
Keyword ：
二维相关光谱 二维相关光谱 热微扰 热微扰 磁微扰 磁微扰 红外光谱 红外光谱
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| GB/T 7714 | 陈义平 , 孙瑞卿 , 高小梅 et al. 热微扰和磁微扰下二维相关红外光谱 [J]. | 光谱学与光谱分析 , 2023 , 43 (S1) : 27-28 . |
| MLA | 陈义平 et al. "热微扰和磁微扰下二维相关红外光谱" . | 光谱学与光谱分析 43 . S1 (2023) : 27-28 . |
| APA | 陈义平 , 孙瑞卿 , 高小梅 , 黄晓辉 , 石桂栋 , 程玲玲 . 热微扰和磁微扰下二维相关红外光谱 . | 光谱学与光谱分析 , 2023 , 43 (S1) , 27-28 . |
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EDTA(乙二胺四乙酸二钠盐)浓度标定是大学化学中重要的基础实验。通过深化设计EDTA浓度标定实验方案，详细探究基准物质、氨水、NH_3-NH_4Cl缓冲液、Mg-EDTA(Mg-Y)及镁溶液、指示剂等关键试剂用量对标定过程和结果的影响，帮助学生加深对络合滴定的认识，掌握不同标定方法的适用条件，增强对实验试剂的作用和“量”的把握，提高分析和解决问题的能力。
Keyword ：
EDTA标定 EDTA标定 关键试剂用量 关键试剂用量 标定条件优化 标定条件优化
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| GB/T 7714 | 魏巧华 , 孙瑞卿 , 许紫婷 . EDTA标定实验中关键试剂“量”的探究 [J]. | 化学教育(中英文) , 2022 , 43 (06) : 77-82 . |
| MLA | 魏巧华 et al. "EDTA标定实验中关键试剂“量”的探究" . | 化学教育(中英文) 43 . 06 (2022) : 77-82 . |
| APA | 魏巧华 , 孙瑞卿 , 许紫婷 . EDTA标定实验中关键试剂“量”的探究 . | 化学教育(中英文) , 2022 , 43 (06) , 77-82 . |
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Abstract ：
EDTA(乙二胺四乙酸二钠盐)浓度标定是大学化学中重要的基础实验.通过深化设计EDTA浓度标定实验方案,详细探究基准物质、氨水、NH3-NH4Cl缓冲液、Mg-EDTA(Mg-Y)及镁溶液、指示剂等关键试剂用量对标定过程和结果的影响,帮助学生加深对络合滴定的认识,掌握不同标定方法的适用条件,增强对实验试剂的作用和"量"的把握,提高分析和解决问题的能力.
Keyword ：
EDTA标定 EDTA标定 关键试剂用量 关键试剂用量 标定条件优化 标定条件优化
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| GB/T 7714 | 魏巧华 , 孙瑞卿 , 许紫婷 . EDTA标定实验中关键试剂"量"的探究 [J]. | 化学教育 , 2022 , 43 (6) : 77-82 . |
| MLA | 魏巧华 et al. "EDTA标定实验中关键试剂"量"的探究" . | 化学教育 43 . 6 (2022) : 77-82 . |
| APA | 魏巧华 , 孙瑞卿 , 许紫婷 . EDTA标定实验中关键试剂"量"的探究 . | 化学教育 , 2022 , 43 (6) , 77-82 . |
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在分析化学实验教学基础上,引入光谱分析和数据处理,设计了用紫外-可见分光光度法测定铬黑T解离常数的实验.根据系列pH下铬黑T溶液的吸光度,利用ORIGIN进行数学拟合,推导出相应的数学模型,计算铬黑T水溶液的解离常数pKa1、pKa2、pKa3.实验方案简单高效,结果准确度高,可以拓展本科化学实验内容,深入理解酸碱解离过程,加强对仪器分析的认识和应用,培养学生实验设计、数据处理、拟合建模、推导判断的综合能力.
Keyword ：
紫外-可见分光光度法 紫外-可见分光光度法 解离常数 解离常数 铬黑T 铬黑T
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| GB/T 7714 | 孙瑞卿 , 许紫婷 , 陈珠灵 et al. 分光光度法测定铬黑T解离常数实验设计 [J]. | 大学化学 , 2022 , 37 (12) : 183-190 . |
| MLA | 孙瑞卿 et al. "分光光度法测定铬黑T解离常数实验设计" . | 大学化学 37 . 12 (2022) : 183-190 . |
| APA | 孙瑞卿 , 许紫婷 , 陈珠灵 , 林佳丽 . 分光光度法测定铬黑T解离常数实验设计 . | 大学化学 , 2022 , 37 (12) , 183-190 . |
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通过水热法合成新型硅钨酸化合物[Cu(en)_2(H_2O)]_n{[Cu(en)_2][SiW_(12)O_(39.5)]}_n(OH)_n·n(en)。化合物属于三斜晶系,P空间群,呈一维双链结构,配体与簇阴离子间的氢键构成二维层状结构,层与层之间通过游离的乙二胺(en)分子、羟基与簇阴离子间的强氢键作用连结成三维超分子。利用X射线粉末衍射、红外光谱、磁微扰及热微扰下的二维红外光谱、固体紫外可见漫反射光谱和热重分析等方法对化合物进行研究。X射线粉末衍射(XRD)显示,化合物测试谱图和单晶结构数据模拟谱图主要峰位重合,峰形基本一致,表明合成的化合物较纯。红外光谱(FTIR)显示,在1 100...
Keyword ：
Keggin结构 Keggin结构 二维红外光谱 二维红外光谱 复合物 复合物 硅钨酸 硅钨酸
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| GB/T 7714 | 孙瑞卿 , 石林 , 陈义平 et al. 硅钨酸晶体合成和谱学研究及与罗丹明B复合反应探索 [J]. | 光谱学与光谱分析 , 2021 , 41 (08) : 2455-2461 . |
| MLA | 孙瑞卿 et al. "硅钨酸晶体合成和谱学研究及与罗丹明B复合反应探索" . | 光谱学与光谱分析 41 . 08 (2021) : 2455-2461 . |
| APA | 孙瑞卿 , 石林 , 陈义平 , 孙燕琼 . 硅钨酸晶体合成和谱学研究及与罗丹明B复合反应探索 . | 光谱学与光谱分析 , 2021 , 41 (08) , 2455-2461 . |
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A novel triclinic polyoxosilicotungstate Cu[(en)(2) (H2O)1, {Cu (en)(2) SiW12 O-39.5]}(n) (OH)(n) center dot n (en) was hydrothermally synthesized with P (1) over bar space group and a one-dimensional double chains structure. The hydrogen bonds between ligands and cluster anions formed a two-dimensional layered structure. The layers were connected to form a three-dimensional supramolecule by strong hydrogen bonds between free en molecules, hydroxyls and cluster anions. The compound was characterized by XRD, FTIR, two-dimensional(2D) correlation infrared spectroscopy under magnetic and thermal perturbation, UV-Vis DRS spectrum and TG etc. XRD showed that the spectrum was basically consistent with the simulation by single crystal structure data, and the main peaks were the same, indicating that the synthesized compound was relatively pure. The FT-IR spectrum indicated that there was four characteristic stretching vibration of Keggin cluster anion skeleton in the range of 1100 to 700 cm(-1), the nu(as)(O - H) at 3 600 similar to 3 300 cm(-1) was broadened due to the formation of hydrogen bonds. Furthermore, the twodimensional infrared correlation spectroscopy under 5 similar to 50 mT magnetic showed that the strong response peaks at 890, 800 and 780 cm(-1) were nu(s) (W=O-d), nu(W-O-b-W) and nu(W-O-c-W) respectively. This might be caused by the coordination between magnetic Cu and Od of cluster anion, which led to the variation of the dipole moment of W 0 skeleton stretching vibration with magnetic. The 2D-IR COS under 50 similar to 120 degrees C illustrated that there was a strong v (W=Od) response peak at 920 cm while v (W-O-b-W) at 762 cm(-1) and nu(W-O-c-W) at 748 cm(-1) was relatively weak, which verified that the hydrogen bonds formed by Od were more than those of Ob in the structural analysis. The strong hydrogen bonding made the whole cluster anion skeleton more sensitive to the thermal response. UV-Vis DRS found the O-mu -> (LMCT) and d -> d transition of Cu2+ happened at 309 and 558 nm respectively. TGA showed that the weight loss process could be divided into three stages. In the first stage, the free en and hydroxyl groups were lost, and in the second, the coordinated en and coordination water was lost. At last, in the third stage, the framework of the tungsten oxide cluster began to collapse from 540 degrees C. The complex reaction of the compound and RhB under different pH conditions were performed and discussed. The results showed that strong acid condition was more favorable for the complex reaction and the formation of the purple complex. The standard concentration curve of RhB was drawn under pH 1, and the absorbance of residual RhB in the test solution after the complex reaction was detected by UV-Vis. Through further calculation, the best ratio of RhB to the compound was determined as 4 1. This research provided a novel way to remove organic pollutant RhB from industrial wastewater and revealed the potential application prospects of the compound.
Keyword ：
Keggin structure Keggin structure Polyoxosilicotungstate Polyoxosilicotungstate The complex The complex Two dimensional infrared correlation spectral Two dimensional infrared correlation spectral
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| GB/T 7714 | Sun Rui-qing , Shi Lin , Chen Yi-ping et al. Syntheses and Spectral Study of the Polyoxosilicotungstate and Its Complex Reaction With RhB [J]. | SPECTROSCOPY AND SPECTRAL ANALYSIS , 2021 , 41 (8) : 2455-2461 . |
| MLA | Sun Rui-qing et al. "Syntheses and Spectral Study of the Polyoxosilicotungstate and Its Complex Reaction With RhB" . | SPECTROSCOPY AND SPECTRAL ANALYSIS 41 . 8 (2021) : 2455-2461 . |
| APA | Sun Rui-qing , Shi Lin , Chen Yi-ping , Sun Yan-qiong . Syntheses and Spectral Study of the Polyoxosilicotungstate and Its Complex Reaction With RhB . | SPECTROSCOPY AND SPECTRAL ANALYSIS , 2021 , 41 (8) , 2455-2461 . |
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We used the traditional hydro-thermal synthesis method to generate the first photochromic pyrimidinium/polyoxometalate (POM) salt material (C4N2H4-C4N2H3) [Mn(H2O)(6)](0.5){SiW12O40}(0.5)center dot 5H(2)O in situ by using silicotungstic acid and pyrimidine as raw materials. The solid UV diffuse reflectance spectrum of compound 1 was shifted before and after illumination. There was a new broad absorption peak appeared near 370 nm and 624 nm after illumination. With the increase of irradiation time, the peak at 624 nm will shift to 588 nm at which the sample reached light saturation. The color of the sample changed from yellow to grayish green. By studying a series of test: EPR, XPS, UV-Vis, X-ray single crystal diffraction, and density of states (PDOS) calculation, we conclude that the charge transfer mechanism of photochromism may be due to: the generation of pyrimidinium free radicals by light-induced, photochemical reduction of polyoxometalates and the interaction of two aspects. This work enriches the family of photochromism and its theory. (C) 2020 Elsevier B.V. All rights reserved.
Keyword ：
Photochromism material Photochromism material Polyoxometalate Polyoxometalate Pyrimidinium salt Pyrimidinium salt
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| GB/T 7714 | Gong, Zhi-Hui , Shi, Lin , Gao, Xiao-mei et al. A novel photochromism material based on both pyrimidinium and polyoxometalate: (C4N2H4-C4N2H3) [Mn(H2O)(6)](0.5){SiW12O40}(0.5)center dot 5H(2)O [J]. | JOURNAL OF MOLECULAR STRUCTURE , 2020 , 1206 . |
| MLA | Gong, Zhi-Hui et al. "A novel photochromism material based on both pyrimidinium and polyoxometalate: (C4N2H4-C4N2H3) [Mn(H2O)(6)](0.5){SiW12O40}(0.5)center dot 5H(2)O" . | JOURNAL OF MOLECULAR STRUCTURE 1206 (2020) . |
| APA | Gong, Zhi-Hui , Shi, Lin , Gao, Xiao-mei , Bi, Wen-Chao , Huang, Xiao-Hui , Sun, Yan-Qiong et al. A novel photochromism material based on both pyrimidinium and polyoxometalate: (C4N2H4-C4N2H3) [Mn(H2O)(6)](0.5){SiW12O40}(0.5)center dot 5H(2)O . | JOURNAL OF MOLECULAR STRUCTURE , 2020 , 1206 . |
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在大学化学实验"硫酸铜中铜含量测定(碘量法)"过程中,探索加入KSCN时机及不加入KSCN对滴定测试结果的影响,并且采用不同浓度的硫酸铜溶液进行验证.实验结果显示,碘量法测定铜含量过程中,临近滴定终点加入KSCN、滴定到浅黄色时加入淀粉之后加入KSCN,两者测试结果基本一致;但在加入KI之后加入KSCN、不加入KSCN,铜含量测定结果明显偏低.该研究可应用于本科实验教学,按不同实验条件将学生分组,在分别实验基础上,引导学生对各组实验结果进行对比、分析及讨论,从而培养学生探索创新意识,有效改进"唯书本"的教学方法.
Keyword ：
KSCN KSCN 创新能力培养 创新能力培养 碘量法 碘量法 铜含量测定 铜含量测定
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| GB/T 7714 | 孙瑞卿 , 许紫婷 , 魏巧华 . 通过拓展大学化学实验培养学生探索创新能力 ——以"硫酸铜中铜含量测定(碘量法)"为例 [J]. | 大学化学 , 2020 , 35 (9) : 96-102 . |
| MLA | 孙瑞卿 et al. "通过拓展大学化学实验培养学生探索创新能力 ——以"硫酸铜中铜含量测定(碘量法)"为例" . | 大学化学 35 . 9 (2020) : 96-102 . |
| APA | 孙瑞卿 , 许紫婷 , 魏巧华 . 通过拓展大学化学实验培养学生探索创新能力 ——以"硫酸铜中铜含量测定(碘量法)"为例 . | 大学化学 , 2020 , 35 (9) , 96-102 . |
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介绍了第11届全国大学生化学实验邀请赛无机及分析化学实验操作试题的命题思路,并对实验中存在的问题及成绩进行了总结分析.
Keyword ：
无机及分析化学实验 无机及分析化学实验 第11届全国大学生化学实验邀请赛 第11届全国大学生化学实验邀请赛
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| GB/T 7714 | 张玉荣 , 郭钰 , 孙瑞卿 et al. 第11届全国大学生化学实验邀请赛无机及分析化学实验试题评析与思考 [J]. | 大学化学 , 2019 , 34 (6) : 87-91 . |
| MLA | 张玉荣 et al. "第11届全国大学生化学实验邀请赛无机及分析化学实验试题评析与思考" . | 大学化学 34 . 6 (2019) : 87-91 . |
| APA | 张玉荣 , 郭钰 , 孙瑞卿 , 张宁 , 汤儆 , 袁耀锋 et al. 第11届全国大学生化学实验邀请赛无机及分析化学实验试题评析与思考 . | 大学化学 , 2019 , 34 (6) , 87-91 . |
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水热法合成了两个新的钒同多酸化合物[H2 en]3n[V6 O18]n(化合物1)和[Cu(en)2]3[V10 O28]·6H2 O(化合物2).通过 X 射线单晶衍射确定化合物1 属于三斜晶系,呈一维链状结构;化合物2 属于单斜晶系,为孤立结构.二维红外相关光谱显示钒多酸阴离子骨架及 N—H…O氢键对外界热微扰比较敏感,固体紫外漫反射光谱反映了结构中 O→V 的荷移跃迁,热重分析揭示多酸化合物热稳定性及结构变化,高温红外测试进一步验证随着温度变化,游离水、游离有机胺分子、胺合金属阳离子的脱除顺序.
Keyword ：
二维红外相关光谱 二维红外相关光谱 固体紫外漫反射光谱 固体紫外漫反射光谱 钒同多酸化合物 钒同多酸化合物 高温红外光谱 高温红外光谱
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| GB/T 7714 | 陈义平 , 孙瑞卿 , 杨珍 . 两个钒同多酸化合物的光谱测试 [J]. | 实验室研究与探索 , 2019 , 38 (12) : 4-9 . |
| MLA | 陈义平 et al. "两个钒同多酸化合物的光谱测试" . | 实验室研究与探索 38 . 12 (2019) : 4-9 . |
| APA | 陈义平 , 孙瑞卿 , 杨珍 . 两个钒同多酸化合物的光谱测试 . | 实验室研究与探索 , 2019 , 38 (12) , 4-9 . |
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