（TAGH）2（TNR）的合成、晶体结构及热分析

合成了三氨基胍三硝基间苯二酚盐(TAGH)2(TNR)(TAG)三氨基胍;TNR:2,4,6-三硝基间苯二酚),并对其进行了元素分析及红外光谱表征.利用X射线单晶衍射分析测定了其晶体结构.该晶体属于单斜晶系,空间群为C2/c,晶体学数据为,a=2.2892(6)nm,b=1.2802(3)nm,c=1.3661(4)nm,β=111.174(5)°,V=3.7333(16)nm3,Z=8.该化合物是由二个C(N2H3)3+与一个(C6HN3O8)2相结合而成的离子型化合物.用差示扫描量热法、热重法和微商热重法研究了该化合物的热分解过程,研究结果表明,在10 K·min-1的升温速率下,该化合物只有一个剧烈的放热分解过程,该过程发生在450.1-477.7K之间,且分解产物主要是气体产物.     

(TAGH)2(TNR)的合成、晶体结构及热分析

合成了三氨基胍三硝基间苯二酚盐(TAGH)2(TNR) (TAG: 三氨基胍; TNR: 2,4,6-三硝基间苯二酚), 并对其进行了元素分析及红外光谱表征. 利用X射线单晶衍射分析测定了其晶体结构. 该晶体属于单斜晶系, 空间群为C2/c, 晶体学数据为, a=2.2892(6) nm, b=1.2802(3) nm, c=1.3661(4) nm, β=111.174(5)°, V=3.7333(16) nm3, Z=8. 该化合物是由二个C(N2H3)+3与一个(C6HN3O8)2-相结合而成的离子型化合物. 用差示扫描量热法、热重法和微商热重法研究了该化合物的热分解过程, 研究结果表明, 在10 K·min-1的升温速率下, 该化合物只有一个剧烈的放热分解过程, 该过程发生在450.1-477.7 K之间, 且分解产物主要是气体产物.     

三硝基间苯三酚5-氨基四唑盐的晶体结构及热分解

制备得到标题化合物并对其进行了元素分析与红外光谱分析. 用X射线衍射方法测得其晶体结构属于正交晶系, 空间群Pbca, 晶胞参数a=0.6624(2) nm, b=1.7933(4) nm, c=2.3117(5) nm, V=2.7458(9) nm3, Z=4, Dc=1.849 g·cm-3. 其分子式可写作(ATZ)TNPG·2H2O. 5-氨基四唑阳离子(ATZ+)和三硝基间苯三酚阴离子(TNPG-)通过氢键在b轴和c轴方向上联成二维层面, 然后在a轴方向通过不同层中的水分子之间的氢键联接起来. 用差示扫描量热法(DSC), TG-DTG结合傅立叶变换红外光谱(FT-IR)分析了其热分解过程. 在氮气气氛下用10 ℃·min-1的升温速率测定发现,该化合物经历一个峰温为76 ℃的吸热过程及一个峰温为203 ℃的放热过程. 前者为脱除结晶水的过程, 后者为产物中的TNPG-与ATZ+的热分解过程, 放热的焓变为-212.10 kJ·mol-1. 对该过程估算动力学参数: 采用Kissinger法得活化能E=132.1 kJ·mol-1, ln (A/s-1)=12.54, r=0.9990; 采用Ozawa-Doyle法得E=133.1 kJ·mol-1, r=0.9992.     

斯蒂芬酸氢铷的制备，晶体结构和热分解机理

A new compound,[RbHTNR]_∞[HTNR:C_6H(NO_2)_3(OH)O],was synthesized by the reaction of rubidium ni-trate and styphnic acid.The molecular structure was characterized using X-ray diffraction analysis,elementalanalysis and FTIR spectroscopy.The crystalline is monoclinic with space group P2_1/n and the empirical formulaC_6H_2N_3O_8Rb.The unit cell parameters are:a=0.4525 nm,b=1.0777 nm,c=1.9834 nm,β=90.47(2)°,V=0.96725 nm~3,Z=4,D_c=2.263 g/cm~3,Mr=329.58,F(000)=640,μ(Mo Kα)=5.165 mm~(-1).The thermal decompo-sition mechanism of the complex was studied by differential scanning calorimetry(DSC),thermogravimetry-derivative thermogravimetry(TG-DTG)and FTIR techniques.At the linear rate of 10 ℃/min,the thermaldecomposition of the complex showed three mass reducing processes between 60 and 500 ℃,and finally evolvedRbCN and some gaseous products.     

1,2,3-三氨基胍二硝基胍盐的合成与量子化学研究

以1,2,3-三氨基胍盐酸盐和二硝基胍为原料,制备了一种新型含能离子盐1,2,3-三氨基胍二硝基胍盐,并对其结构进行了表征. 运用密度泛函理论（DFT）方法,在B3LYP/6-31+G^**水平下计算得到了该盐的几何结构、自然原子电荷分布、前线轨道能量及红外光谱,同时计算了热容、焓及熵等热力学参数,并分析了这些参数和温度之间的函数关系;利用Born-Haber循环求得该化合物的生成热为150.54 kJ/mol;利用Monte-Carlo方法预测了该化合物的理论密度为1.56 g/cm³;基于以上数据进一步计算得到该化合物的爆速为7.81 km/s,爆压为24.74 GPa.     

三硝基间苯三酚1,5-二氨基四唑盐的制备、晶体结构及热分析

通过1,5-二氨基-1,2,3,4-四唑（DAT）与等摩尔的2,4,6-三硝基-1,3,5-苯三酚（TNPG）反应,制备了新型离子型含能化合物DATH⁺TNPG^-。通过X射线单晶衍射、元素分析、FT-IR光谱和¹H NMR对其进行了表征。晶体结构测试表明：该化合物的晶体属于单斜晶系,P2(1)/c空间群,a = 1.3399(3),b= 0.47088(9),c = 2.0127(4) nm,β= 92.83(3) ^o,V = 1.2684(4) nm³, Z= 4。在氢键、静电引力和范德华力的作用下该化合物形成了稳定的三维网状结构。对DAT和DATH⁺TNPG^-晶体进行了DFT-B3LYP/6-31G**周期性计算研究,得到其Mulliken电荷分布和重叠布居,从理论上说明DAT质子化位置是在四唑环的N(4)原子。采用TG-DTG和DSC技术对目标化合物的热分解进行了研究,并采用Kissinger和Ozawa-Doyle法对热分解过程的非等温反应动力学进行了计算。     

3,5-二羟基-2,4,6-三硝基苯酚氨基脲铵盐半水合物的合成、晶体结构和热分解特性

A new compound, semicarbazidium 3,5-dihydroxy-2,4,6-trinitrophenolate hemihydrate （SCDHTNP·0.5H2P）, was synthesized by the reaction of the aqueous solutions of semicarbazide with trinitrophloroglucinol. Its structure was determined by single-crystal X-ray diffraction analysis and characterized by elemental analysis, FTIR, DSC and TG-DTG techniques. The crystal is monoclinic with space group P21/n and the empirical formula C7H9N6O10.50. The unit cell parameters are： a= 1.3791（3） nm, b=0.9256（2） nm, c=2.0468（4） nm,β= 106.93（3）°, V=2.4995（9）nm^3, Z=8, Dc= 1.835 g/cm^3, Mr=345.20, F（000）= 1416, s=0.945,μ（Mo Ka）=0.174 mm^-1. The final R and wR are 0.0401 and 0.0896. Its structure consists of two semicarbazidium cations, two 3,5-dihydroxy-2,4,6-trinitrophenolate anions and one crystal water molecule, which are interconnected by electrostatic forces and hydrogen bonds into layer structure, making the title compound very stable. Under a linear heating rate, the thermal decomposition processes of SCDHTNP·0.5H2O have one endothermal dehydration stage and two intensive exothermic decomposition stages at 178-241℃ to evolve abundant gas products.     

芳亚甲基硝基缩氨基胍类化合物的合成及杀虫活性

依据活性亚结构拼接原理, 以硝基胍为原料, 合成了一系列具有新烟碱类和缩氨基脲类杀虫剂共同结构特征的芳亚甲基硝基缩氨基胍类化合物, 其结构通过¹H NMR、 IR和元素分析等方法进行了确证. 杀虫活性测定结果表明, 在600 μg/mL浓度下, 目标化合物对桃蚜[Myzuspersicae(Sulzer)]具有较优异的活性, 其中化合物4-2, 4-8, 4-10, 4-16, 4-27, 4-31和4-34的校正死亡率均在90%以上. 进一步以桃蚜、 棉蚜(Aphis gossypii)和桃粉蚜(Hyalopterusamygdali blanchard)为对象, 测定了化合物4-2, 4-8和4-34的精密毒力. 结果表明, 它们在低浓度下仍然具有很高的活性, 其中化合物4-8对棉蚜的活性甚至优于对照药剂吡虫啉, 在3.13 μg/mL浓度下致死率仍高达95.7%(吡虫啉为79.4%), 具有进一步研究开发的价值.     

偶氮四唑三氨基胍盐的合成

以5-氨基四唑(5-AT)为起始原料经过两步反应合成了偶氮四唑类高氮含能化合物--偶氮四唑三氨基胍盐(TAGZT).第一步反应,在氢氧化钠水溶液中5-AT被高锰酸钾氧化生成偶氮四唑钠盐五水化合物(SZT·5H2O),产率75.6%;第二步反应,SZT·5H2O在水溶液中与三氨基胍硝酸盐发生离子置换反应得TAGZT,产率73.3%(m.p.196 ℃～197 ℃),其结构经1H NMR, 13C NMR, FT-IR和元素分析表征.     

溴酸钾法测定三氨基硝酸胍纯度

建立溴酸钾法测定三氨基硝酸胍(TAGN)纯度的分析方法.以溴酸钾为氧化剂,硫酸为酸化剂,控制溶液酸度为3～3.6 mol/L,溴酸钾与TAGN发生氧化还原反应,加入过量的碘化钾消耗剩余的溴酸钾,用硫代硫酸钠标准溶液滴定生成的碘,根据消耗的硫代硫酸钠标准溶液的量计算与TAGN反应的溴酸钾的量.在优化的试验条件下,测定结果...     

[K(HTNR)(H_2O)]_n的制备、晶体结构和热分解机理

通过2，4，6－三硝基间苯二酚（斯蒂芬酸，TNR）与氢氧化钾在乙醇溶液中反 应，首次合成出配位聚合物[K(HINR)-(H_2O)]_n，并测定了其晶体结构。该晶体属 单斜晶系, P2_1/c空间群；晶胞参数： a = 0.7888(1)nm, b = 1.38002(2) nm, c = 0.9520(1) nm, β=8.91(1)°；V = 1.0238(2) nm~3; D_c = 1.954 g/cm~3; Z = 4; F(000) = 608; μ(MoKα) = 0.575 mm~(-1)。用DSC，TG－DTG及FT－IR 等分析方法研究了该配位聚合物的热分解机理。在线性升温条件下，该配合物的热 分解包含两个重叠的弱吸热过程和两个强放热分解过程。分解残渣的红外分析表明 ，在271.9 ℃时，分解残渣中有KNCO与羧酸钾，357.1 ℃时，残渣中只有KNC存在 。     

Synthesis,Crystal Structure,Thermal Decomposition and Sensitivity Properties of (AIM)(HTNR) and (AIM)(PA)

Two new energetic compounds (AIM)(HTNR) and (AIM)(PA)(AIM=2-azidoimidazole, TNR=2,4,6-trinitroresorcinol, PA=picric acid) have been prepared by AIM(2-azidoimidazolium) and TNR(2,4,6-trinitroresorcinol) or PA(picric acid) and characterized by elemental analysis and FTIR spectrum. Their crystal structures were determined by X-ray single-crystal diffraction analysis. The obtained results show that (AIM)(HTNR) crystal belongs to monoclinic, P2₁/c space group, a=1.1306(2) nm, b=0.70305(14) nm, c=1.7398(4) nm, β=106.91°, V=1.3231(5) nm³, D_c=1.778 g/cm³, Z=4, R₁=0.0524, wR₂[I>2σ(I)]=0.1067 and S=1.092 and (AIM)(PA) crystal belongs to monoclinic P2₁/c space group, a=0.80303(16) nm, b=0.81395(16) nm, c=2.0471(4) nm, β=93.93(3)°, V=1.3349(5) nm³, D_c=1.683 g/cm³, Z=4, R₁=0.0784, wR₂[I>2σ(I)]=0.1814 and S=1.098. Both the compounds have electrostatic attraction and hydrogen bonds, which contribute to making the constructions more stable. The decomposition of the two compounds was studied via differential scanning calorimetry(DSC) and thermogravimetry-derivative thermogravimetry(TG-DTG) techniques at a heating rate of 10 ℃/min, and the results show that both the compounds underwent one intensive exothermic decomposition stage. Sensitivity tests reveal that the title compounds were insensitive to friction and impact and sensitive to flame and could be applied in potential pyrotechnics.     

Synthesis, Crystal Structure and Thermal Stability of (Diacetylacetone)(diimidazole)Nickel(II) Complex

1 INTRODUCTION Acetylacetone is well known as the intermediate product of organic synthesis reaction, which can be used as annexing agent in gasoline, lubricant and desiccant in paint. Also it has been found to possess fungicidal and insecticidal activi…     

Synthesis, Crystal Structure and Thermal Analysis of (TAGH)2(TNR)

A new energetic compound (TAGH)₂(TNR) (TAG: triaminoguanidine, TNR: 2,4,6-trinitroresorcinol) was prepared by reacting triaminoguanidine with 2,4,6-trinitroresorcinol (styphnic acid) in aqueous solution under nitrogen atmosphere, and characterized by elemental analysis and Fourier transform infrared (FTIR) spectra. Its crystal structure was determined by single crystal X-ray diffraction analysis. The crystal belonged to a monoclinic, C 2/c space group. The unit cell parameters were as follows: a=2.2892(6) nm, b=1.2802(3) nm, c=1.3661(4) nm, β=111.174(5)°, V=3.7333(16) nm³, and Z=8. The compound consisted of two cations C(N₂H₃)₃⁺ and an anion (C₆HN₃O₈)²⁻. The C(N₂H₃)₃⁺ and (C₆HN₃O₈)²⁻ were bonded together by electrostatic attraction and hydrogen bonds, and this effect made the compound more stable. The thermal analysis of the compound was studied by using differential scanning calorimetry (DSC), thermogravimetry-derivative thermogravimetry (TG-DTG). Under nitrogen atmosphere with a heating rate of 10 K·min⁻¹, the thermal decomposition of the compound contained only one intense exothermic decomposition process in the range of 450.1-477.7 K in the DSC curve, and the decomposition products were nearly gaseous products.     

Synthesis,Crystal Structure and Thermal Stability of a One-dimensional Chain Cobalt Coordination Polymer [Co(4,4'-bipy)(2,4,6-TMBA)_2(CH_3CH_2OH)_2]_n

A one-dimensional chain cobalt(Ⅱ) coordination polymer with 2,4,6-trimethylbenzoic acid, 4,4'-bipyridine and cobalt perchlorate anhydrous has been synthesized and characterized in the mixture solvent of water and alcohol. Crystal data for this complex: monoclinic, space group C2/c, a = 2.3805(8), b = 1.1464(4), c = 1.5807(5) nm, γ = 128.435(4)°, V= 3.3791(18) nm3,Dc = 1.246 g/cm3, Z = 4, F(000) = 1340, final GooF = 1.009, R = 0.0504 and wR = 0.1287.Structural analysis shows that the cobalt ion is coordinated with two nitrogen atoms of one 4,4'-bipyridine molecule and four oxygen atoms from two 2,4,6-trimethylbenzoic acid molecules and two alcohol molecules, giving a distorted octahedral coordination geometry. The result of TG analysis indicates that the title complex is stable till 200 ℃.     

Hydrothermal Synthesis, Crystal Structure and Thermal Analysis of a Dinuclear Complex Cd2（3,5-Dinitrobenzoate）4（pyridine）4

A dinuclear complex Cd2(dnba)4(pyridine)4 (dnba = 3,5-dinitrobenzoate) has been synthesized by hydrothermal method and characterized by X-ray single-crystal diffraction, elemen- tal analysis, FT-IR spectroscopy, DSC and TG-DTG techniques. The complex with empirical formula C48H32Cd2N12O24 (Mr = 692.83) crystallizes in monoclinic, space group P21/n with a = 12.0344(14), b = 10.5752(13), c = 21.578(3) (A), β = 104.150(2)o, V = 2662.8(6) (A)3, Z = 2, Dc = 1.728 g/cm3, μ(MoKα) = 0.897 mm-1, F(000) = 1384, S = 1.016 and (Δ/σ)max = 0.001. R = 0.0638 and wR = 0.0737 for all data; the final R = 0.0337 and wR = 0.0644. In this complex, four carboxylates are bidentate- or chelate-coordinated with the Cd(Ⅱ) centers to give the dinuclear structure. The other coordination positions of Cd(Ⅱ) are occupied by the lone pair electrons from N of four pyridines. Thermal analyses DSC and TG-DTG have been used to determine the thermal decomposition mechanism of the title complex.     

水杨醛-L-缬氨酸合铜(Ⅱ)配合物的合成、晶体结构及热分析研究

X射线单晶结构分析结果表明，深蓝色的水杨醛-L-缬氨酸二吡啶合铜（Ⅱ）配合物晶体-C22H23CuN3O3属单斜晶系，空间群对1114可观测衍射最终一致性因子为R＝0．066，该配合物中心离子是5配位的，其中希夫碱配体提供3个配位原子：N（1）、O（1）、0（2）；另外2个配位原子为2个吹吹分子提供的N（2），N（3）。N（1），N（2），N（3）组成三角形平面与O（1），O（2）构成三角双锥，Cu的配住为畸变三角双锥构型。其中，N（1），N（2），N（3）为赤道配位原子，而O（1）－Cu－O（2）为配合物的轴。