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Thermochemical Properties of Ternary Complexes of RE Perchlorate with Glycine and Imidazole

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Journal of Rare Earths 1999年第2期17卷 18-21页

作者： Yang, Xuwu Liu, Xiangrong gao, shengli Liu, Jianrui Northwest Univ Xi'an China

The combustion energy has been determined for the nine solid complexes of rare earth perchlorate with glycine and imidazole using a rotatingbomb *** standard enthalpy of combustion,H0 -c,coor(s), and standard enthalpy of formation,H0 -f,coor(s), for these complexes have been calculated. From the plot of standard enthalpy of formation versus atomic number of the elements in lanthanide series the tripartite effect regularity was observed and the unknown standard enthalpy of formation for similar complexes,Ce(Gly)4(Im)(ClO4)32H2O and Pm(Gly)4(Im)(ClO4)32H2O,can be estimated according to the figure.

关键词： Rare earths Rare earth perchlorate,Glycine,Imidazole,Combustion energy,Standard enthalpy of formation

Standard energies of combustion and standard enthalpies of formation for the complexes RE (Et_2dtc)_3(phen) (RE = Ho,Er,Tm,Yb,Lu)

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Rare Metals 2005年第4期24卷 301-305页

作者： WEI Qing CHEN Sanping YANG Xuwu gao shengli SHI Qizhen Department of Chemistry Shaanxi Key Laboratory of Physico-Inorganic Chemistry Northwest University Xi＇an 710069 China

The treatment of ***2O （RE = Ho, Er, Tm, Yb, Lu; x = 3-4） with sodium diethyldithiocarbamate （NaEtEdtc-3H2O） and 1,10-phenanthroline hydrate （o-phen.H2O） in absolute ethanol yielded five ternary solid complexes RE（EtEdtC）a（phen）. IR spectra of the complexes showed that RE^3＋ coordinated to two sulfur atoms in NaEt2dtc and two nitrogen atoms in o-phen. The constant-volume energies of combustion of the complexes have been determined by a precise rotating-bomb calorimeter at 298.15 K. The standard enthalpies of combustion and standard enthalpies of formation were calculated.

关键词： thermochemistry combustion energy calorimeter RE(Et2dtc)3(phen) standard enthalpy of formation

CD4^(+)T淋巴细胞亚群与心肌梗死关系的研究进展

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河北医药 2024年第18期46卷 2848-2852页

作者：拓亚伟任艳琴高胜利山西医科大学汾阳学院山西省吕梁市032200 山西医科大学附属汾阳医院

心肌梗死(MI)是全球致死、致残的主要原因之一,严重危害人们的生命健康。进一步探索MI的相关病理机制有利于促进AMI的诊断、治疗和预后。MI设计复杂的病理过程,罪犯血管中往往含有大量可以诱导炎性反应的免疫细胞,其中以CD4^(+)T细胞亚... 详细信息

心肌梗死(MI)是全球致死、致残的主要原因之一,严重危害人们的生命健康。进一步探索MI的相关病理机制有利于促进AMI的诊断、治疗和预后。MI设计复杂的病理过程,罪犯血管中往往含有大量可以诱导炎性反应的免疫细胞,其中以CD4^(+)T细胞亚群中的1型辅助性T(Th1)细胞最多见,此外还包括含量较低的Th2细胞、Th17细胞、调节性T细胞(Treg)、Th9细胞、Th22细胞及滤泡辅助性T(Tfh)细胞等。这些CD4^(+)T细胞通过自分泌或旁分泌方式释放多种细胞因子,并通过作用于炎性细胞调节动脉粥样硬化斑块的发生、发展。从而促进了MI的发生、发展,影响患者预后,本文就CD4^(+)T细胞亚群在MI的发生、发展、梗死后炎性反应及心室的不良重构等方面的研究进展进行综述,以期进一步阐明MI的病理过程,同时为MI预防、治疗及改善预后提供新的潜在靶点。

关键词：心肌梗死 CD4^(+)T淋巴细胞亚群辅助性T细胞调节性T细胞

Determination of combustion energies and the standard enthalpies of formation for the complexes of RE(Et_(2)dtc)_(3)(phen)

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Science China Chemistry 2005年第z1期48卷 88-92页

作者： YANG Xuwu ZHU Li CHEN Sanping gao shengli SHI Qizhen Department of Chemistry Shaanxi Key Laboratory of Physico-Inorganic ChemistryNorthwest UniversityXi'an 710069China

Solid complexes,RE(Et_(2)dtc)_(3)(phen)(RE=La,Pr,Nd,Sm-Lu),were synthesized with sodium diethyldithiocarbamate(NaEt_(2)dtc3H_(2)O),1,10-phenanthroline(o-phen·H_(2)O)and hydrated lanthanide chlorides in absolute *** constant-volume combustion energies of complexes,Δ_(c)U,were determined by a precise rotating-bomb calorimeter at 298.15 *** standard enthalpies of combustion,Δ_(c)H^(θ)_(m),and standard enthalpies of formation,Δ_(f)H^(θ)_(m),were calculated for these complexes,*** experiment results showed the'tripartite effect'of rare earth.

关键词： thermochemistry combustion energies calorimeter RE(Et_(2)dtc)_(3)(phen) standard enthalpies of formation

Cobalt(Ⅱ) coordination polymers built on isomeric dipyridyl triazole ligands with pyromellitic acid:Synthesis,characterization and their effects on the thermal decomposition of ammonium perchlorate

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Science China Chemistry 2012年第3期55卷 443-450页

作者： XIE Gang LI Bing CHEN SanPing YANG Qi WEI Wei gao shengli Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education College of Chemistry and Materials Science Northwest University Xi＇an 710069 China School of Chemistry ＆ Chemical Engineering Ningxia University Yinchuan 750021 China

Three new cobalt（II） coordination compounds, [Co（3,3＇-Hbpt）2（H2pm）（H20）2]＇2H20 （1）, [Co（4,4＇-Hbpt）（pm）0.5（H20）]＇3H20 （2） and [Co（3,4＇-Hbpt）（pm）0.5（H20）3]＇2H20 （3）（3,3＇-Hbpt = 3,5-bis（3-pyridyl）-lH-1,2,4-triazole; 4,4＇-bpt = 3,5-bis（4-pyridyl）- 1H-1,2,4-triazole, 3,4＇-Hbpt = 3-（3-pyridyl）-5-（4＇-pyridyl）-lH-1,2,4-triazole and Hapm = pyromellitic acid） have been synthe- sized by hydrothermal reactions. Single-crystal X-ray diffraction reveals that compound 1 has a one-dimensional （1D） chain network, 2 exhibits a four-connected three-dimensional （3D） structure with 1D open channels encapsulated by water molecules, while 3 displays a regular two-dimensional （2D） architecture connected through 1D metal helical chains. In addition, the effi- cacy of compounds 1-3 as additives to promote the thermal decomposition of ammonium perchlorate （AP） is explored by dif- ferential scanning calorimetry （DSC）.

关键词： cobalt(II) coordination compound 3 5-bis.pyridyl-lH-1 2 4-triazole combustion catalysis ammonium perchlorate

Coordination behavior between zinc salts and L-α-methionine

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Chinese Science Bulletin 1998年第18期43卷 1527-1531页

作者： shengli gao Jianrui Liu Mian Ji Xuwu Yang Fengxing Zhang Zhongjin Li Department of Chemistry Northwest University Xi’an China Department of Chemical Engineering Northwest Institute of Light Industry Xianyang China

The solubility properties of ZnCl\-2/ZnAc\-2/ZnSO\-4MetH\-2O systems at 25℃ in the whole cocentration range have been investigated by phase equilibrium method. The results indicate that ZnAc\-2 and ZnSO\-4 systems are both simple systems, which do not exist any compound; there are 2 complexes formed in ZnCl\-2 system: Zn（Met）Cl\-2 and Zn（Met）\-2Cl\-2·2H\-2O. Under the direction of phase equilibrium result, 2 solid complexes have been prepared in water and characterized by chemical analysis, IR, Xray diffraction. Their combustion energies have also been determined by means of a RBCtype1 rotatingbomb calorimeter, and their standard enthalpies of formation, Δ f, coor（s）H O-, have been calculated which are （-828.32±3.00） kJ·mol -1 and （-1 117.08±6.15） kJ·mol -1, respectively.

关键词： zinc salts L-methionine phase equilibrium complex standard formation enthalpy.

前扣带回至伏隔核GABA能神经通路调控小鼠肠易激综合征及潜在机制研究

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中国病理生理杂志 2024年第5期40卷 815-826页

作者：郭瑞晓高胜利冯旭菲刘华明星孙金秋栾心驰刘震宇刘蔚毅郭菲菲青岛大学基础医学院生理学与病理生理学系山东青岛266071 青岛大学生物医学中心山东青岛266071 青岛大学附属医院消化内科山东青岛266071 青岛大学青岛医学院山东青岛266071

目的:探讨前扣带回(ACC)至伏隔核(NAc)的γ-氨基丁酸(GABA)能神经通路对小鼠肠易激综合征(IBS)的调控作用及潜在机制。方法:(1)慢急性联合应激法(CACS)建立C57BL/6J小鼠IBS模型,分为正常组和IBS组(均n=8),通过行为学测试、肠动力实验和... 详细信息

目的:探讨前扣带回(ACC)至伏隔核(NAc)的γ-氨基丁酸(GABA)能神经通路对小鼠肠易激综合征(IBS)的调控作用及潜在机制。方法:(1)慢急性联合应激法(CACS)建立C57BL/6J小鼠IBS模型,分为正常组和IBS组(均n=8),通过行为学测试、肠动力实验和腹部退缩反射评分观察小鼠IBS样症状。(2)采用荧光金(FG)逆行追踪结合荧光免疫组织化学法检测ACC-NAc的GABA能通路和IBS小鼠ACC中GABA神经元兴奋性(均n=8)。(3)在正常和IBS小鼠NAc分别注射1.5μL生理盐水(NS)、GABA_A受体拮抗剂荷包牡丹碱(BIC)或激动剂异四氢烟酸(Isog),并据此将小鼠分为3组(均n=8):NS组、BIC组和Isog组,观察其IBS样症状。(4)采用化学遗传法将腺相关病毒载体AAV2/9-mDlx-iCre-WPRE-pA定向注射于ACC,AAV2/2Retro Plus-hSyn-DIO-hM3D(Gq)-eGFP-WPRE-pA注射于NAc,小鼠分为4组(均n=8):NS(腹腔注射)+NS(NAc注射)组、NS+BIC组、氯氮平N-氧化物(CNO)+NS组和CNO+BIC组;或AAV2/2Retro-hSyn-DIO-hM4D(Gi)-EGFP-WPRE-pA注射于NAc,小鼠分为3组(均n=8):NS+NS组、NS+BIC组和CNO+NS组,酶联免疫吸附试验(ELISA)检测结肠组织中组胺和5-羟色胺(5-HT)的表达,并观察ACC-NAc的GABA能神经通路对小鼠IBS样症状的影响。结果:CACS诱导小鼠出现IBS样症状;FG逆行追踪结合免疫荧光组织化学实验结果显示,ACC的GABA神经元可以投射至NAc。NAc注射BIC后IBS小鼠的焦虑样行为、腹泻样症状和内脏超敏反应显著减轻(P<0.05)。化学遗传法抑制投射至NAc的ACC内GABA能神经元可显著减轻IBS小鼠的症状(P<0.05)。结论:ACC^(GABA)-NAc神经通路可参与小鼠IBS样症状的调控,其机制可能与肠道组胺和5-HT的释放有关。

关键词：前扣带回伏隔核 γ-氨基丁酸焦虑样行为肠易激综合征内脏超敏反应

Combustion energies and standard molar enthalpies of formation for the complexes of the first-row transitional metal chlorides with L-α-histidine

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Science Bulletin 2003年第4期48卷 319-322页

作者： gao shengli, CHEN Sanping, YANG Xuwu & SHI Qizhen Shaanxi Key Laboratory of Physic-Inorganic Chemistry/Chemistry De-partment of Northwest University, Xi抋n 710069, China Correspondence should be addressed to gao shengli Shaanxi Key Laboratory of Physic-Inorganic Chemistry Chemistry Department Northwest University Xi'an 710069 China

Seven novel solid complexes of the first-row transitional metal with L-a -histidine were synthesized, and their compositions were determined. The constant-volume combustion energies of the complexes were measured by a precision rotation bomb calorimeter. The standard molar enthalpies of combustion and the standard molar enthalpies of formation were calculated. The results indicated that the plots of the standard enthalpies of formation against the atomic number of the metal show a regularity of zigzag.

关键词： transitional metal chloride L-a -histidine solid complex standard molar enthalpies of formation.

3D Co(II, III) mixed-valence metal-organic framework affording field-induced slow magnetic relaxation

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Science China Chemistry 2015年第6期58卷 1032-1038页

作者： Sheng Zhang Xiangyu Liu Bin Liu Zhengqiang Xia Weitao Wang Qi Yang Hongshan Ke Qing Wei Gang Xie Sanping Chen shengli gao Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education College of Chemistry and Materials Science Northwest University School of Chemistry and Chemical Engineering Ningxia University College of Chemistry and Chemical Engineering Shaanxi University of Science & Technology

A 3D mixed-valence Co（Ⅲ）-Co（Ⅱ） compound [Co9（bta）10（Hbta）2（H2O）10]n·[22（H2O）]n （1）（H2bta=N,N-bis（1H-tetrazole-5- yl）-amine） was hydrothermally synthesized by reaction of Co（NO3）2·6H2O with H2bta·H2O. Compound 1 consists of three kinds of distorted-octahedral [CoⅡ（N4O2）] paramagnetic nodes which are separated by [CoⅢ（bta）2（Hbta）]2-/[CoⅢ（bta）3]3- dia- magnetic linkers to generate a 3D porous metal-organic framework （MOF） with alternative …Co（Ⅲ）…Co（II）… array and channels incorporating water molecules. Under an applied magnetic field of 4000 Oe, compound 1 exhibits slow relaxation of magnetization at low temperatures, giving AE/kB=30.O0 K and ι0=2.0×10^-8 s.

关键词： Co(Ⅱ, Ⅲ) mixed-valence metal-organic framework, slow magnetic relaxation