吡啶

The chiral polymer P-1 shows strong blue fluorescence due to the extended π-electronic structure between the chiral repeating unit-6,6'-di(4-trifluoromethyl-phenyl)-2,2'-bisoctoxy-1,1'-binaphthyl and the conjugated linker 2,2'-bipyridyl group via vinylene bridge.

手性高分子P-1能发射强的蓝色荧光，这是由于手性重复单元-6，6′-二(4-三氟甲基苯基)-2，2′-二正辛氧基-1，1′-联萘和单元2，2′-联吡啶通过亚乙烯基桥连形成共轭高分子结构造成的。

In the complex, the tin atom is hepta-coordinated in a distorted pentagonal bipyramid including a bridging pyridyl N atom, by which the one-dimensional infinite chain is formed.

结果表明，该化合物中锡原子配位数为7，处在畸变五角双锥配位场中，化合物通过吡啶基氮原子的桥连作用形成了一维无限链状结构。

In the crystal, the tin atoms are five-coordinated in trigonal bipyramidal structure by bridging pyridine N atoms, resulting in the chain organotin compound.

该化合物中心锡原子为五配位三角双锥构型，并且通过4-吡啶甲酸配体的氮原子桥联作用形成一维无限链状结构。

The crystal belongs to monoiclinic with space group P2 1/n, a=1.7073(7)nm, b=1.7447(7)nm, c=2.4333(10)nm,β=109.694(7)°, Z=4,V=6.824(5)nm 3, D x=1.282g/cm 3,μ=0.793mm -1, F(000)=2696, R 1=0.0563, WR 2=0.1539. In the crystals of compound, the tin atoms rendered seven-coordinate in a distorted pengonal bipyramidal structure.

我们以 NEt3 作缚酸剂，用 Ph3 Sn Cl与 2 ，6 -吡啶二甲酸以 1∶ 1摩尔比反应时，没有得到预期产物 Ph3 Sn O2 C(2 ，6 - Py)CO2 H ，而是得到一种 Sn- Ph键断裂的离子型有机锡化合物(Scheme1 )。

In the paper, hydrothermal synthesis of 4-4 'bipyridine and metal complexes.

本文采用水热合成法合成4-4'联吡啶与金属的配合物。

And with Raman spectroscopy, XRD, infrared spectroscopy, and other means to 4-4 'bipyridine and the synthesis of metal complexes were spectrometry.

并借助拉曼光谱、XRD、红外光谱等手段对4-4'联吡啶与金属所合成的配合物进行了光谱分析。

Otherwise,the fluorescence emission intensity of ternary complexes have been enhanced strongly by 2,2'-bipyridine in mixing.

另外，三元配合物中，2，2'-联吡啶的掺入可大大提高配合物的荧光强度。

A new conjugation molecule L2, based on 2,4,5-triphenylimidazole and 6-phenyl-2,2\'-bipyridine, was synthesized in two steps.

基于2，4，5-三苯基咪唑和6-苯基-2，2\'-二联吡啶，合成了一个新型的共轭分子L2。

The well-documented chelating properties of bipyridine and the sensitivity of the optical properties of AuNPs have been employed to detect low concentration of metal ions in water.

因为联吡啶具有好的钳合能力，加上金奈米粒子的灵敏的光学性质，所以可以用来侦测水中低浓度的金属离子。

During spectrum tests, operating conditions, sample preparation, and other conditions can affect the test results, identified by XRD 4-4 'bipyridine and metal at a high temperature can be coordinated into a metal organic complexes.

在进行光谱测试时，操作条件、样品制备等条件均能影响测试结果，通过XRD确定4-4'联吡啶与金属在高温下可以配位成金属有机配合物。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了