the mechanochemical approach) as well as by UV-light assisted reactions yielding [MoO2(LSIH)(MeOH)] (4), [MoO2(LNIH)(MeOH)] (5) and [MoO2(LEt2NSIH)]n (6), respectively. Crystal and molecularstructures of all complexes were determined by the single crystal X-ray diffraction method. The complexes were further characterized by elemental analysis, IR spectroscopy, TG analysis, one- and two-dimensional NMR
通过使用MoO 2 Cl 2和相应的ONO酰yl配体H 2 L R(配体H 2 L R)进行二氧化钼(VI)配合物[MoO 2(HL R)(MeOH)] Cl(1-3)的合成是水杨醛异烟酰yl(H 2 L SIH),2-羟基萘醛异烟酰hydr(H 2 L NIH)或对-(N,N'-二乙氨基)水杨醛异烟酰yl(H 2 L Et2 NSIH)的甲醇溶液。将相应的单核配合物1-3暴露在湿气中即可获得化合物[MoO2(HLR)(H2O)] Cl(1a-3a)。的单核络合物去质子化1-3通过使用进行的Et3N作为碱(通过常规溶液为基础的方法,并通过机械化学方法),以及通过UV光辅助的反应,得到[的MoO2(LSIH)( MeOH)](4),[MoO2(LNIH)(MeOH)](5)和[MoO2(LEt 2NSIH)] n( 6)。所有配合物的晶体和分子结构均通过单晶X射线衍射法测定。通过元素分析,I
Synthesis, crystal structures, and catalytic property of dioxomolybdenum(VI) complexes with hydrazones
作者:W. X. Xu、W. H. Li
DOI:10.1134/s107032841202011x
日期:2012.2
X-ray determination. For complex I, a polymeric structure is obtained, which is linked by coordination of the pyridine N atoms to the Mo atoms of other [MoO2(L1)] units. Complex II is a mononuclear molybdenum compound. In both complexes, the Mo atoms are in octahedral coordination. The catalyticproperties of the complexes indicate that they are efficient catalysts for sulfoxidation.
两个新的二氧钼钼(VI)络合物,[MoO 2(L 1)] n ·0.5 n CH 3 OH(I)和[MoO 2(L 2)(CH 3 OH)](II),其中L1和L 2为分别制备了N '-[1-(4-二乙基氨基-2-羟基苯基)亚甲基]异烟酰肼和N '-(2-羟基-4-甲氧基亚苄基)-3-甲基苯并酰肼的二价阴离子型,并通过理化和光谱法和单晶X射线测定。对于复杂的我 ,得到聚合物结构,其通过吡啶N原子与其他[MoO 2(L 1)]单元的Mo原子的配位连接。配合物II是单核钼化合物。在两个络合物中,Mo原子均为八面体配位。配合物的催化性能表明它们是用于硫氧化的有效催化剂。
A colorimetric and “turn-on” fluorimetric chemosensor for the selective detection of cyanide and its application in food samples
selective isonicotiamide-based chemosensor HY for cyanide was successfully designed and synthesized, which showed both colorimetric and fluorescent turn-on responses for cyanide ions in aqueous. This structurally simplechemosensor could detect CN− anion over other anions in aqueous solution DMSO/H2O (v/v = 7 : 3) undergo deprotonation reaction. Results showed that the chemosensor HY exhibited 14-fold enhancement
成功设计并合成了一种新型的高选择性基于异烟酰胺的氰化物化学传感器HY,该传感器显示了水溶液中氰离子的比色和荧光开启响应。此结构简单的化学传感器可以检测CN -阴离子过在水溶液DMSO其它阴离子/ H 2 O(V / V = 7:3)进行去质子化反应。结果表明,化学传感器HY在荧光在552处具有14倍的增强,并显示在加入CN之后在UV灯下黄色荧光-在水溶液中。颜色从浅黄色到黄色的明显变化可以通过肉眼观察到。我们已经成功地利用上述CN -和H +为INHIBIT分子逻辑门的制造中,使用CN -和H +作为化学输入和荧光强度信号作为输出。此外,在传感器CN的荧光响应的检测极限-下降到5.12×10 -8 M分别滴定法。基于测试条HY获得,其可作为一个方便和有效的CN -试验试剂盒检测CN -在水溶液中。此外,传感器可以检测到CN -食物样品作为样品和有效的方法英寸
Mechanistic differences between in vitro assays for hydrazone-based small molecule inhibitors of anthrax lethal factor
作者:M. Leslie Hanna、Theodore M. Tarasow、Julie Perkins
DOI:10.1016/j.bioorg.2006.07.004
日期:2007.2
A systematically generated series of hydrazones were analyzed as potential inhibitors of anthrax lethal factor. The hydrazones were screened using one UV-based and two fluorescence-based in vitro assays. The study identified several inhibitors with IC50 values in the micromolar range, and importantly, significant differences in the types of inhibition were observed with the different assays. (c) 2006 Elsevier Inc. All rights reserved.
Synthesis, structural elucidation and anticancer activity of diorganotin(IV) complexes derived from isonicotinoyl hydrazones
Six new Schiff based diorganotin(IV) complexes have been synthesized and structurally characterized through multitude analytical techniques. The compound-DNA interaction study has been performed through UV–Visible spectroscopy that revealed high binding potential through a spontaneous process. The complexes have further been investigated for antimicrobial and anticancer studies.