对甲基苯甲酸胆甾醇酯的合成及晶体结构

通过对－甲基苯甲酰氯与胆甾醇反应,制得了对甲苯甲酸胆甾醇酯．该化合物晶体呈正交晶系,空间群为Ｐｚ１ｚ１ｚ１,晶胞参数为ａ＝０．９１８０（２）ｎｍ,ｂ＝１．３７３３（３）ｎｍ,ｃ＝２．４５２１（５）ｎｍ,Ｖ＝３．０９１３（１１）ｎｍ３,ｚ＝４,ＤＣ＝１．０８９ｇｃｍ－３,Ｒ＝０．０６１２,ＲＷ＝０．１５９０．     

meso-四-(4-甲氧基苯基)卟啉的晶体和分子结构

用Ｘ—射线测定了ｍｅｓｏ－四（４－甲氧基苯基）卟啉的溶剂合物（ＴＰＭＰ·ＣＨＣｌ３）的晶体结构。实验表明，该晶体属单斜晶系，空间群Ｐ２１／Ｃ，ａ＝１．４３７７（２）ｎｍ，ｂ＝０．９６７４（７）ｎｍ，ｃ＝１．５６８８（４）ｎｍ，β＝１０１．００（２）°，Ｖ＝２．１４２ｎｍ３，Ｚ＝２，ｄｃ＝１．３２４ｇ／ｃｍ３，μ＝２．６１３ｃｍ－１，Ｆ（０００）＝４４４。讨论了分子结构中的非平面共轭效应及卟啉环与锰（Ⅲ）离子配位后锰（Ⅲ）对其结构参数的影响。     

复合型POM：3，5－DNBA的晶体结构

３－甲基－４－硝基吡啶－１－氧（ＰＯＭ）与３，５－二硝基苯甲酸（３，５－ＤＮＢＡ）的复合型晶体从乙醇与丙酮的混合溶液中培养获得，其组成为１：１，己被元素分析和ｘ射线衍射实验所证实；其熔点由ＤＳＣ热分析测得，为１２２．６℃。该晶体化合物属单斜晶系，空间群为Ｐ２１／ｎ，单胞参数为：ａ＝０．９５５３（２）ｎｍ，ｂ＝０．５７７５（４）ｎｍ，ｃ＝２．７９６２（４）ｎｍ，β＝９９．０３（１）°，ｖ＝１．５２４（１）ｎｍ３，ｚ＝４，Ｄｃ＝１．６０ｇ／ｃｍ３，λ（Ｍｏｋα）＝０．０７１０７３ｎｍ，μ＝１．２９ｃｍ－１，Ｆ（０００）＝７５２，最终Ｒ＝０．０５１，Ｒｗ＝０．１６５［ｗ＝１／σ２（Ｆ）］，其中１８０２个可观察衍射点参与结构计算，复合型分子中存在一个氢键。     

CdI2与TSC加成物的合成及结构

ＣｄＩ２与ＴＳＣ在丙酮溶剂及水中形成加成物ＣｄＩ２（Ｃ４Ｈ１０Ｎ３Ｓ）２·Ｈ２Ｏ,晶体属单斜晶系,空间群为Ｐ２１／ｍ．晶胞参数为ａ＝０．７５３３（３）ｎｍ,ｂ＝１．５３５（２）ｎｍ,ｃ＝０．８４３７（２）ｎｍ,β＝９０．９１（３）°,ｖ＝０．９７６（１）ｎｍ３,Ｍｒ＝６４８．６４,Ｚ＝２,Ｄｃ＝２．２０ｇ·ｃｍ－３,μ（ＣｕＫα）＝４４．５８ｃｍ－１,Ｆ（０００）＝６０８,Ｔ＝２９７Ｋ．用１６２２个Ｉ≥３σ（Ｉ）独立衍射精修结构,最终偏差因子Ｒ＝０．０５７,晶体中存在分离的单核络合物ＣｄＩ２（Ｃ４Ｈ１０Ｎ３Ｓ）２·Ｈ２Ｏ,Ｃｄ原子呈畸变四面体配位．两个Ｃｄ－Ｉ和Ｃｄ－Ｓ键长分别为０．２７３０ｎｍ,０．２７４３ｎｍ和０．２５７５ｎｍ．     

双核铜配合物［Cu＿2（CH＿3COO）＿2C＿5H＿5NO］＿2的合成和晶体结构

以２－羟基吡啶为配体，合成了标题配合物，测定了其晶体结构。结果表明：晶体属单斜晶系Ｃ２／ｃ空间群。晶胞参数：ａ＝１．３７３５（５）ｎｍ，ｂ＝０．８６８７（３）ｎｍ，ｃ＝：１．８６３０（９）ｎｍ，β＝９３．７３（４）°，ｖ＝２．２１８１（１６）ｎｍ￣３，Ｚ＝４．结构用直接法解出。最终偏离因子Ｒ＝０．０５１。Ｃｕ－Ｃｕ间距离为０．２６３ｎｍ。     

雷公藤内酯甲和异雷公藤内脂甲共结晶的晶体结构

雷公藤酯甲和异雷公藤酯甲共结晶的晶体结构被直接法测定。晶体的空间群为Ｐ２１２１２１晶胞参数α＝１．２９９（３）ｎｍ，ｂ＝１．５９００（３）ｎｍ，ｃ＝１．１１４３（３）ｎｍ，Ｖｃ＝２．５３３（１）ｎｍ３；Ｚ＝４，Ｄｃ＝１．１９ｇ／ｃｍ３，Ｆ（０００）＝１０００，μ（Ｍｏ－ｋａ）＝０．６９ｃｍ－１用Ⅰ≥３σ（Ⅰ）的１６８１个反射修正结构，最后的Ｒ＝０．０６６．晶体中２种分子是由于Ｃ３－Ｏ３α型和Ｃ３－Ｏ３β型的不同，它们采用统计分布。     

L－酪氨酸高氯酸盐的晶体结构

在水溶液中制备了标题化合物Ｌ－酪氨酸ＨＣｌＯ４，并用Ｘ射线单晶衍射仪测定了其晶体结构。晶体属单斜晶系，Ｐ２１空间群。晶胞参数：ａ＝０．５３３５（１）ｎｍ，ｂ＝０．９８１７（２）ｎｍ，ｃ＝１．２０００（３）ｎｍ，β＝９４．７９（２）°，Ｖ＝０．６２６３（３）ｎｍ３，Ｚ＝２，Ｄｃ＝１．４９４ｇ／ｃｍ３     

Na_3〔(Tb_(0.4)La_(0.6))｛C_5H_3N(COO)_2｝_3〕·14H_2O的晶体和分子结构

用四园衍射仪测定了标题化合物的晶体和分子结构，该配合物属于三斜晶系，空间群Ｐ１，晶胞参数：α＝１．０３９２（３）．ｂ＝１．１０３６（１），ｃ＝１．７３５２（６）ｎｍ，α＝７４．１（２），β＝７７．６（２），γ＝７２．８（２）￣０；Ｖ＝１．８０８５（９）ｎｍ￣３，ｚ＝２，Ｄｃ＝１．７７ｇ／ｃｍ￣３．结构用直接法解出，最后的Ｒ因子为０．０３４．通过占有率的计算，表明本配合物中Ｔｂ（Ⅲ）为０．４，Ｌａ（Ⅲ）为０．６；三个配体的六个羧基氧原子和三个氮原子围饶中心离子形成畸变的三帽三棱柱配位多面体。Ｎａ￣＋均由羧基氧或水分子配位形成Ｎａ—０八面体，这些畸变的八面体，以共点方式连成链状，［（Ｔｂ＿（０．４）Ｌａ＿（０．６））（ｄｉｐｉｃ）＿３］￣（３－）和Ｎａ—Ｏ八面体由氢键连结构成晶体。     

含多硫基S~（2－）_6及3－Mep_y配体的锌配合物性能的研究

标题化合物采用锌粉、硫粉及３－甲基吡啶（３－Ｍｅｐｙ）直接反应而得，是金黄色晶体，不溶于水及ＣＳ２．结晶学参数：三斜晶系，Ｐ１空间群，ｚ＝２，α＝０９２１１（２）ｎｍ，ｂ＝０９８１３（２）ｎｍ，ｃ＝－１１４８４（２）ｎｍ，α＝９７０４（１）°，β＝１０４８５（１）°，γ＝６１９９（１）°，υ＝０８８５９ｎｍ３，元素分析确定化学式为ＺｎＳ６（ＣＨ３Ｃ５Ｈ４Ｎ）２，对标题化合物进行红外光谱，紫外可见光谱归属，同时进行热分析，循环伏安以及萤光性能的研究．结果发现标题化合物具有萤光性能，并在温度大于１２０℃开始分解，３００℃以上全部分解，最后产物为ＺｎＳ     

水杨叉乙二胺Schiff碱（SEDA）铜配合物的单晶结构

合成标题化合物［（ｓｅｄａ）Ｃｕ］·ＥｔＯＨ,并得到单晶［ｓｅｄａ＝Ｎ,Ｎ′－二水杨叉基－１,２－二－（４－甲氧基苯基）乙二胺］．Ｘ－衍射结构分析表明,晶体属正交晶系,空间群Ｐｂｃａ,晶体学数据：ａ＝２．０１１５（４）ｎｍ,ｂ＝１．３１９６（３）ｎｍ,ｃ＝２．１０５７（４）ｎｍ,晶胞体积Ｖ＝５．５８９（３）ｎｍ３,分子量５８８．１６,Ｚ＝８,Ｄｘ＝１．３９８ｇ／ｃｍ３,μ＝８．２３９ｃｍ－１,Ｆ（０００）＝２４６５,最终偏离因子Ｒ＝０．０７９,Ｒｗ＝０．０８３,（Δ／σ）ｍａｘ＝０．６８．结构分析表明,配体中二个偶氮甲碱中氮原子和二个酚氧原子与中心Ｃｕ原子配位,形成规则的菱形平面结构．     

Synthesis and crystal structure of new supramolecular adducts of [PtCl6]2− with cucurbit [7] uril: [(H3O)2 (PtCl6)]3 (C42H42N28O14)2·H2O

A novel supramolecular adduct [(H₃O)₂ (PtCl₆)]₃ (C₄₂H₄₂N₂₈O₁₄)₂·H₂O (1) was synthesized by mixing [PtCl₆]²⁻ and cucurbit [7] uril in solution of hydrochloric acid. The crystal structure was determined by single crystal X-ray diffraction analysis. The crystal belongs to orthorhombic system and space group F dd2 with cell dimensions:a=4. 705 33 (5) nm,b=7. 153 80 (6) nm,c=1. 894 61 (2) nm,Z=16,V=63, 7744 (11) nm³,D _c =1.534 g/cm³, μ=3. 007 mm⁻¹,F(000)=29 120,R ₁=0.070 7,wR ₂=0. 169 2. In crystal, the cucurb [7] uril molecules from two zig-zag chains. Foundation item: Supported by the National Natural Science Foundation of China (20172040) Biography: Yan kun (1977-), female, Master, research direction: macrocyclic chemistry.     

Preparation,crystal structure and quantum chemical investigation of [Li(NTO) (H2O)]

[Li(NTO)(H₂O)₂] was prepared by mixing the aqueous solution of 3-nitro-1,2,4-triazol-5-one (NTO) and lithium hydroxide. The crystal structure of [Li(NTO)(H₂O)₂] was determined by single crystal diffraction analysis. The crystal is monoclinic, space group P2₁/n with crystal parameters of a = 0.742 0(2) nm, b = 0.344 9(1) nm,c = 2.490 6(3) nm, β= 94.89(1)°, Z = 4,D _c , = 1.799 g cm⁻³,V = 0.635 nm³, μ = 1.591 cm⁻¹, F(000) = 392. The finalR is 0.051. The MNDO MO calculation shows that the coordinate bonds of title compound possess certain extent of covalent character. O₂ atom of NTO anion is bonded to Li atom; the nitro group will be lost first when NTO is decomposed.     

Synthesis and Characterization of Polyamide-Containing 2, 6- （Substituded） pyridine Derivatives

0 IntroductionPayrriodminaetiics hoenteer oofc ythcleics m .os tC oambupnoduanndts a cnodn tbaeisntin kgno twhnepyridine ring are widely distributedin nature,principally asenzymes and alkaloids . Pyridine enzymes have been foundintissues of all plants and ani mals examined thus far ,andare derivedfromeither nicotinic acid or Vitamin B6[1].Pyr-idine derivatives are also the building block of many phar-maceuticals with a wide range of functionalities that includeantitubercular compounds ,antivi…     

Refinement of the crystal structure for a new mineral──antimonselite

The crystal structure of a new mineral of the stibnite group, Sb-2Se-3, has been determined. The cell constants, obtained by least-squares calculation from direct θ -value's measurements on the diffractometer are: a =1.158 8(5), b =1.174 4(4), c =0.395 5(2) nm; orthorhombic; V =0.538 23 nm+3; Z =4. The space group is Pbnm. X-ray single crystal data, using Mo K α radiation, were measured on a RIGAKU RASA-5RP automated diffractometer and refined to a final R index of 0.048 1. Sb-2Se-3 is isostructural with Sb-2S-3 and Bi-2S-3. Each Sb(1) atom is six-coordinated by 3 Se(1), 1 Se(2) and 2 Se(3) atoms at distances 0.266 0-0.323 6 nm. Each Sb(2) atom is seven-coordinated by 2 Se(1), 2 Se(2) and 3 Se(3) atoms at distances of 0.258 1- 0.346 7 nm. The crystal structure consists of chains parallel to c or needle axis. The strongest bonds (shortest separations) are within the chains. Many important physical properties of antimonselite (optical, ferroelectric, etc.) are related to its crystal structure.     

5,5’-偶氮四唑-5-氮氧化物钠五水合物的晶体结构及相关理论研究

化合物5,5’-偶氮四唑钠（2）在稀盐酸中分解得到5-肼基四唑盐酸盐（3）,5-肼基四唑盐酸盐与氢氧化钠中和后除去产物中的NaCl,在甲醇中重结晶得到5,5’-偶氮四唑-5-氮氧化物钠五水合物（4）,采用MS,元素分析等对这些化合物进行表征. 用X射线单晶衍射法测定获得了化合物 3 和4的晶体数据. 化合物3属于单斜晶系,P2（1）/n空间群,其晶胞参数a=0.438（2）nm,b=2.395 6（2）nm,c=0.493 6（2）nm,Z=4,V=0.546（4）nm3,D_c=1.659 g/cm3,F（000）=280;化合物 4属于三单斜晶系,P-1空间群,其晶胞参数a=0.715 81（19） nm,b=0.766 3（2）nm,c=1.193 3（4） nm,Z=2,V=0.602 7（3） nm3,D_c=1.742 g/cm3,F（000）=324.      

Syntheses, characterization, crystal structure and magnetic properties of copper(Ⅱ)α, β-unsaturated carboxylate complexes with trimethyl phosphate

Two ternary complexes Cu2A4[OP(OCH₃)₃]₂ (A represents CH₂== CH—COO- and CH₂== C(CH₃)—COO-) have been synthesized, and elemental analyses, IR, ESR, electronic reflectance spectra and magnetic studies were carried out. The single crystal X-ray diffraction shows that Cu₂[CH₂== C(CH₃)—COO]₄[OP(OCH₃)₃]₂ is triclinic, with space group P1, a = 1.05128(13), b = 1.7559(5), c = 1.94479(3) nm, α = 91.263(14)°, β = 102.559(6)°, γ = 106.339(13)°, Z = 4 and R = 0.0668. Two copper(Ⅱ) atoms are bridged by four a -methacrylate groups, and each copper(Ⅱ) atom is coordinated with a trimethyl phosphate molecule in the axial position, forming a distorted square pyramidal configuration. The symmetric center is between the two copper(Ⅱ) atoms, and the Cu-Cu bond distance is 0.26098(6) nm. The Cu-Cu distance and magnetic studies suggest that there exist antiferromagnetic interactions between the two copper(Ⅱ) atoms.     

超分子配合物{［Cd(phen)3］·NDC·8(H2O)}的合成、 晶体结构和性质

利用水热合成反应制备了超分子配合物{［Cd(phen)₃］·NDC·8(H₂O)}(1) （phen： 邻菲啰啉； H₂NDC： 2,6-萘二酸），通过元素分析和单晶X射线衍射对配合 物表征. 单晶X射线衍射分析表明， 配合物1属于三斜晶系, P1空间群, a=1.201　0(2) nm, b=1.286　4(3) nm, c=1.709　7(3) nm, α=74.21(3)°, β=69.92(3)°, γ=71.40(3)°, V= 2.311　7(8) nm³, Z=2, R₁=0.066　0, wR₂=0.204　3.荧光光谱分析结果表明， 配合物1在紫外光的激发下有光致发光特性.     

Preparation by a rheological phase reaction method and thermal decomposition reaction mechanism of nickelous salicylate tetrahydrate

0　IntroductionInrecentyears,studiesonBinghamfluid ,suchasElec trorheologicalfluid ,areactivelypursued[1 6] .Rheologicaltechniqueshavebeenplayinganimportantroleinsyntheticchem istry .Therheologicalphasereactionmethodisthe processofpreparingcompoundsormaterialsfromasolid liquidrheologicalmixture.Thatis,thesolidreactantsarefullymixedinapropermolarratio ,andmadeupbyaproperamountofwaterorothersolventstoaBinghambodyinwhichthesolidparticlesandliquidsubstanceareuniformlydistributed ,sothattheprodu…     

Single-crystal structure of coordination polymer [Nd2(C8H5NO4)3·4H2O]∞

Rapid progress is now being made in the design and synthesis of coordination polymers with unique topological structures[17]. Lots of interesting topological structures such as chain-like[4], ladder-like[8], grid-like[9], brick- like[10], comb-like structures[11], etc., have been reported. In recent years, preliminary applications of coordination polymers to chemistry and material science, such as molecular sieve, catalysis, nonlinear optical properties, magnetic materials, biotic sensors, etc…     

二维层状结构磷酸锌化合物的水热合成与结构表征

在水热条件下, 制得了ZnHPO₄单晶. 对其进行了粉末X射线衍射分析、 红外光谱、 元素分析和单晶X射线衍射分析. 单晶结构分析结果表明, 该晶体属于单斜晶系, P2(1)/c空间群, a=0.462　51(14) nm,b=1.360　8(4) nm, c=0.582　84(18) nm, β=98.752(5)°, V=0.362　56(19) nm³, Z=2, M＝161.35, R₁＝0.074 2, wR₂＝0.229　6.