配合物Ni(DPBP-SAH)2·2CH3CH2OH的合成和晶体结构

A nickel(Ⅱ) complex Ni(DPBP-SAH)₂·2CH₃CH₂OH, (DPBP-SAH=N-(1,3-diphenyl-4-benzylidene-5-pyrazolone)-salicylidene hydrazone), has been synthesized and characterized by elemental analyses, IR spectra and single crystal X-ray diffraction. It belongs to monoclinic, space group C2/c with a=2.737 9(4) nm, b=1.249 2(2) nm, c=1.760 8(2) nm, β=120.212(9)°, M_r=1 065.84, V=5.204(1) nm³, Z=4. The X-ray diffraction reveals that the nickel(Ⅱ) ion in the title complex is in a slightly distorted octahedral arrangement of the ON donor atoms of two DPBP-SAH and two O-donor atoms in ethanol. CCDC: 249394.     

两种含氨基吡啶衍生物铜(Ⅱ)配合物的合成和晶体结构

Copper(Ⅱ) complexes Cu(C₆H₆N₂)₂(ClO₄)₂ (1) and Cu₂(OAc)₄(C₅H₅ClN₂)₂ (2) with amino-pyridine deriva-tives ligands have been synthesized and characterized by elemental analysis and IR spectrum. Their crystal struc-tures are determined by X-ray diffraction method. Compound 1， C₁₂H₁₆C₁₂CuN₄O₈， M_r=478.73， triclinic， space group ， a=0.7641(1)nm， b=0.7987(1)nm， c=0.7990(1)nm， α=106.78(1)°，β=95.71(1)°， γ=108.85(1)°， V=0.4317(1)nm³， Z=1， D_c=1.841g·cm^-3， μ=1.627mm^-1， F(000) =243，R₁=0.0264， ωR₂=0.0641 (I>2σ(I)). In 1， the center metal ion Cu(Ⅱ) possesses distorted octahedral geometry. Compound 2， C₁₈H₂₂C₁₂Cu₂N₄O₈， M_r=620.38，monoclinic， space group C2/c， a=1.9888(3)， b=0.9158(1)， c=1.4241(2)nm， β=115.89(1)°， V=2.3336(5)nm³， Z=4， D_c=1.766mg·cm^-3， μ=2.104mm^-1， F(000)=1256， R₁=0.0263， wR₂=0.0676 (I>2σ(I)). Compound 2 is dinuclear structure， in which each Cu(Ⅱ) adopts five-coordinated distorted square pyramid geometry. CCDC： 193109; 193110.     

A new hetero-bimetallic coordination polymer, cesium, and sodium complex of styphnate trihydrate [CsNa(TNR)(H2O)3] n

A new hetero-bimetallic coordination polymer, cesium, and sodium complex of styphnate trihydrate [CsNa(TNR)(H₂O)₃] _n (TNR: 2,4,6-trinitroresorcinol dianion, the dianion of styphnic acid) was synthesized. The title complex was characterized by X-ray single crystal diffraction, element analysis, FT-IR, DSC, TG-DTG studies. In the title polymer molecule, the cesium cation is coordinated by 13 oxygen atoms: three originated from the water molecule and the others are from the nitro group and the phenolic hydroxyl group of TNR; the sodium cation is surrounded by six oxygen atoms from water molecules and TNR forming a distorted octahedron. The coordination polymer crystal was formed by the bridging ligands of water molecules and TNR connected with different cesium and sodium cations.     

2-乙氨基-6H-5-(1-苯基-3-甲基/苯基-5-吡唑啉酮-4-基)-1,3,4-噻二嗪的合成和晶体结构

利用1-苯基-3-甲基/苯基-4-氯乙酰基-吡唑啉酮-5(PMCP/DPCP)与4-乙基氨基硫脲(ETSC)发生缩合反应,生成了2个新的双杂环化合物2-乙氨基-6H-5-(1-苯基-3-甲基/苯基-5-吡唑啉酮-4-基)-1,3,4-噻二嗪(PMCP-ETSC/DPCP-ETSC),并对其进行元素分析、红外光谱、核磁共振表征和晶体结构分析.PMCP-ETSC晶体属于单斜晶系,Pm空间群,晶胞参数:a=0.7947(1)nm,b=0.8348(1)nm,c=1.1990(2)nm,β=106.07(1)°,V=0.77269(2)nm3,Z=2,Dc=1.356g/cm3,μ=0.219mm-1,F(000)=332,R=0.0298,wR=0.0704.该化合物通过分子间氢键形成沿c轴无限延伸的一维链状结构.DPCP-ETSC晶体属于正交晶系,Pna21空间群,晶胞参数:a=1.1478(2)nm,b=1.3545(2)nm,c=1.1994(2)nm,V=1.8646(4)nm3,Z=4,Dc=1.345g/cm3,μ=0.194mm-1,F(000)=792,R=0.0345,wR=0.0694,此化合物通过分子间氢键形成沿c轴成链状,沿ab平面成波浪状的超分子结构.     

4,4′-联吡啶锌(Ⅱ)配合物的合成及其晶体结构

苦味酸锌与4,4'-联吡啶反应,得到一种新型配合物[Zn(4,4′-bpy)2(H2O)2](pic)2@2H2O(4,4′-bpy4,4′-联吡啶,pic-苦昧酸根),并用元素分析、红外光谱等进行表征.X-射线单晶衍射结果表明,晶体属单斜晶系,空问群Cc,晶胞参数a=1.4390(2),b=1.1418(1),c=2.2908(3)nm,β=95.08(1)°,V=3.749(1)nm3,Z=4该配合物由4,4′-联吡啶与金属配位形成多孔的二维网,二维网再由未配位的水分子及苦味酸根离子通过氢键作用沿a轴方向堆积得三维网状结构,且未配位的水分子、苦味酸根离子被包合在网络之中,展示出一定的包合现象.     

A Cell Solid Structure of cis-1,3-Cyclohexanedicarboxylic Acid and Its Complex Crystal with 4,4''''-Dipyridine

Carboxylic acids are important in crystal engineering because they can form strong and directional O-H…O hydrogen bonds as dimmer and catmer.[1] The dicarboxylic acids (not containing other hydrogen bonding groups) generally form the extended line structure interlinked through dimmer,[2] except that oxalic acid forms both the β-oxalic acid linked by dimmer (finite synthon) and the a-oxalic acid by catmer[3] (infinite synthon). A new molecular packing structure of cis-1,3-cyclohexanedicarboxylic acid (CHDA), which is different from line structure,[4] was gotten (P1/2, Figure 1). The novel structure has dimmer and catmer hydrogen bond pairs in the crystal and the hydrogen bond length of O-H…O is 0.268 nm in catmer and 0.264 nm in dimmer. The bond angles of O=C-O vary from 123.1° to 123.8° in catmer and from 123.1° to 122.0° in dimmer comparing with the ones in line structure.     

Preparation and X—ray Crystal Structure of Di—chloro—bis（p—t—butylphen

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Preparation, characterization, and the molecular structure of 2,4,6-trinitro-mesitylene

We reported in this study the synthesis, culture of crystal, and single-crystal X-ray crystallography of the 2,4,6-trinitro-trimethylbenzene (TNTM) compound. We found the crystal belongs to the Triclinic system with space group P-1. The compound was also characterized by FT-IR,¹H NMR, and MS spectroscopy techniques. Density functional theory (DFT) B3LYP was employed to optimize structure and calculate frequencies of TNTM. The calculated geometrical parameters are close to the corresponding experimental ones. The thermal decomposition of TNTM was investigated by DSC and TG–DTG methods at heating rate 10°C/min. The results indicate that TNTM has high heat-resistant ability.1

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Molecular and Crystal Structure of 3′, 4′-Dimethoxy-4-N-methylstilbazonium lodide Hydrate C_(16)H_(18)NO_2~+· I~-· H_2O

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Hydrogen Bonding Network Assembled with 2-Amino-3-hydroxypyridium and Isonicotinate-N-oxide

The crystal structure of the compound (C₅H₇N₂O)·(C₆H₄NO₃)·H₂O (1) consisting of 2-amino-3-hydroxypyridium, isoniconate-N-oxide and lattice water was characterized by single-crystal X-ray diffraction analysis: monoclinic, P2₁/c, a = 9.6905(8), b = 6.0040(4), c = 21.039(2) Å, β = 101.062(8)°, V = 1201.34(18) Å³, Z = 4. In 1, the deprotonated isoniconate-N-oxide, the protonated 2-amino-3-hydroxypyridium and the lattice water are linked by a series of classical hydrogen bonds to form 2-D layer. Then, these 2-D sheets assemble to a 3-D network via weak hydrogen bonds.