Topological超共形代数的Leibniz中心扩张

通过计算得到了Topological N=2超共形代数丁的Leibniz二上同调群,从而确定了此代数的Leibniz中心扩张.     

水合羟基高氯酸镍髤的晶体结构(英文)

CommentThestructuralintheinorganonickelperchlorateiswelldocumented[1,2].Amongthese,thestructuresinwhichperchlorateanionactsasatridentateligandareratherrare.Toourbestknowledge,inorganonickelperchloratecompoundcontainingtridentateperchlo鄄rateandtridentateh…     

水合羟基高氯酸镍(Ⅱ)的晶体结构(英)

Green single crystal of the title compound was accidentally obtained by the reaction of N,N′-bis(pyridylcarbonyl)-4,4′-diaminodiphenyl ether (L) with nickel perchlorate. In the structure of [Ni( μ₃-OH)( μ₃-ClO₄)(H₂O)]_n, the local coordinating geometry around Ni center displays a distorted octahedron in which one coordination site of each metal atom was occupied by a water molecule. Each perchlorate anion and hydroxyl group acts as a tridentate bridging spacer to bind three Ni atoms, thus resulting in the formation of two-dimensional layered network. CSD: 414263.     

4-羟基-喹啉酸盐钴(II)配合物(英文)

C om pound1was afforded through hydrotherm altreatm ent of ethyl4-hydroxy3-quinolinecarboxylateand C oC l2in the presence of pyridine that prom oteshydrolysis of ethyl4-hydroxy-3-quinolinecarboxylate(hqs)(Schem e1).The coordination environm entaround cobalt center can be best described as aslightly distorted octahedron defined four oxygenatom s from tw o ligand hqs and two nitrogen atom sfrom two pyridines(Fig.1).phenolate and one of oxy-gen of carboxylic group of the sam e organic ligand hqc…     

抗菌药物柳氮磺胺镉配聚物的合成和晶体结构

0 Introduction Crystal engineering of pharmaceutical solids rep- resents a fertile and emerging research filed[1]. The im- petus for discovery of diverse crystal forms of drugs stems from the critical need to balance stability, bioavailability and other performance characteristics as well as provides valuable intellectual property pro- tection. Sulfasalazine (synonyms salazopyridine and salazosulfapyridine, abbreviated as H-SSZ) is a conju- gate of 5-aminosalicylic acid and sulfapyridine pos…     

异薄荷醇黄原酸镍的配合物(英)

The coordination geometry around Ni atom in the homochiral bis(2-isopropyl-5-methylcyclohexyl xanthalato) nickel(Ⅱ) (1) displays an approximately square plane defined by four S atoms from two xanthalato ligands. CCDC: 252343.     

单扫描示波极谱法测定中草药中铅和镉

以盐酸-碘化钾-酒石酸钾钠-抗坏血酸-聚乙二醇-400为底液,用二阶导数示波极谱法连续测定中草药中铅和镉.铅的回归方程为Iy=4 292Cx 46.78,质量浓度在0.004～0.50 mg·L-1范围呈线性关系,相关系数为0.998 0;镉的回归方程为Iy=6 833Cx 2.344,质量浓度在0.003～0.40 mg·L-1范围呈线性关系,相关系数为0.999 4.对不同浓度的样品进行了7次平行测定,铅、镉的相对标准偏差分别为1.1%～4.5%和1.6%～4.1%,回收率分别为94.0%～100.5%和97.0%～103.0%.分析了5种中草药样品与石墨炉原子吸收光谱法的结果一致.     

马休群与斯坦诺5设计

讨论了马体群旗传递作用于斯坦诺5设计上的情况，得到了如下结论：设D=（X，Ω，I）是非平凡的斯坦诺5设计，D的自同构群G旗传递地作用在D上。若G是几乎单群，则 （i）基柱Soc（G）不是下列单群：N=Mv，v=11，22，23和N=M11,v=12 （ii）若N=M12，v=12，则D是一个5-（12，6，1）设计，且G M12 （iii）若N=M24，v=24，则D是一个5-（24，8，1）设计，且G M24。     

顶点算子超代数的双模

对于任意一个顶点算子超代数$V$及$m,n\in
\frac{1}{2}\mathbb{Z}_{+}$, 通过构造$A_n(V)-A_m(V)$-\!双模
$A_{n,m}(V)$, 刻画了$V$
的一个从可容许$V$-\!模的第$m+1$层子空间到第$n+1$层子空间的作用,
并得到一类Verma型可容许$V$-\!模.     

纳米多孔高熵合金Pt4Pd4Au4Ag3RuAl3类酶活性研究及其对抗坏血酸的检测

采用脱合金法制备了三维纳米多孔高熵合金(NP-Pt4Pd4Au4Ag3RuAl3),研究发现该材料具有很好的类过氧化物酶催化活性.用H2O2和经典比色底物3,3,-5,5'-四甲基联苯胺(TMB)对材料进行类酶活性探究,该材料具有良好稳定性并对TMB和H2 O2有很强亲和力,催化反应符合Michaelis-Menten...