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光致发光性能
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The special property of the NO\++ ligand which can be solvated by azide\|assisted labilization of the nitrosyl ligand in the Ru(Ⅱ) complexes was applied in the synthesis of the new complexes:NO\-2\|Ru (bpy)\-2 \|NC\|Ru\|(py)\-4\|CN\++,Cl\|Ru(bpy)\-2\|NC\|Ru(py)\-4\|CN\++,NO\-2\|Ru(bpy)\-2\|NC\|Ru(py)\-4\|CN\|Ru\|(bpy)\-2\|NO\+ 2+ \-2 and Cl\|Ru(bpy)\-2\|NC\|Ru(py)\-4\|CN\|Ru(bpy)\-2Cl 2+ (bpy=2,2′\|bipyridine,py=pyridine). The UV\|Visible spectra,the IR spectra and the photo\|luminescence properties...

The special property of the NO\++ ligand which can be solvated by azide\|assisted labilization of the nitrosyl ligand in the Ru(Ⅱ) complexes was applied in the synthesis of the new complexes:NO\-2\|Ru (bpy)\-2 \|NC\|Ru\|(py)\-4\|CN\++,Cl\|Ru(bpy)\-2\|NC\|Ru(py)\-4\|CN\++,NO\-2\|Ru(bpy)\-2\|NC\|Ru(py)\-4\|CN\|Ru\|(bpy)\-2\|NO\+ 2+ \-2 and Cl\|Ru(bpy)\-2\|NC\|Ru(py)\-4\|CN\|Ru(bpy)\-2Cl 2+ (bpy=2,2′\|bipyridine,py=pyridine). The UV\|Visible spectra,the IR spectra and the photo\|luminescence properties of these complexes were studied. It has been shown from the elemental analysis, the UV\|Visible spectra and the IR spectra, that the new complexes we designed were prepared.It is very interesting that there are two different MLCT(metal\|to\|ligand charge transfer) process and two photo\|luminescence emission bands in one molecule. These special photophysical properties were the results of the special configuration and buildups of the different blocks in the new complexes. This will present the advantage for the study of the electron transfer within those molecules.

设计合成了一系列二核和三核( 金属离子的个数) 钌( Ⅱ) 吡啶和联吡啶混合配体的化合物。利用色谱柱分离法使产物得以有效的分离。这类化合物在组成上具有吡啶和联吡啶两种配体,两组元分别为顺、反结构。这种组成和结构上的特殊性,使得这些化合物的光物理和光化学性质与已有的二核化合物相比,具有独特之处:一个化合物中具有几个不同金属向配体的电子跃迁过程( MLCT) 。它们的IR吸收特征,特别是氰配体成桥后IR 振动频率的变化,证明了二核和三核化合物的形成。所得新化合物具有较强的光致发光性能,在一个化合物中同时具有两个不同波长的发射峰,这一发光特性与它们的二元组成是相对应的。

A series of dialkoxyl substituted poly(para phenylene)(DAO PPP), which are soluble in common organic solvents, were synthesized by Scholl reaction using anhydrous FeCl 3 as catalyst and nitrobenzene as solvent. Their structures were characterized by FT IR, 1H NMR, elemental anslysis, etc. and phogtoluminescent properties were studies. The experimental results show that an introduction of alkoxyl side chains not only improves solubility of polymers in organic solvents, but also effectes the optical...

A series of dialkoxyl substituted poly(para phenylene)(DAO PPP), which are soluble in common organic solvents, were synthesized by Scholl reaction using anhydrous FeCl 3 as catalyst and nitrobenzene as solvent. Their structures were characterized by FT IR, 1H NMR, elemental anslysis, etc. and phogtoluminescent properties were studies. The experimental results show that an introduction of alkoxyl side chains not only improves solubility of polymers in organic solvents, but also effectes the optical properties including UV Vis absorption peaks band gaps, maximum photoluminescent peaks. The dependence of their properties on the side chain length has been explained in terms of the steric hindrance effect and donor ability of the alkoxyl groups.

:采用 Scholl反应 ,以硝基苯作溶剂 ,无水三氯化铁为催化剂 ,合成了系列可溶性烷氧基对称二取代的聚对苯撑 (DAO- PPP) ,并用多种手段对其结构进行了表征 ,研究了聚合物的光致发光性能。实验表明 ,烷氧基的引入不但明显改善了 PPP的溶解加工性能 ,而且随烷氧基侧链链长的改变 ,聚合物的最大紫外吸收峰、带隙 Eg、光致发光(PL)最大发射峰及其发射强度都呈现规律性的变化 ,文中对此进行了初步的探讨

The photoluminescent complex [ Au2 (μ - PNP)3 ] ( ClO4 )2, PNP = 2,6 - bis( diphenylphosphino) pyridine, which has an open cavity, can serve as a host - complex. When the size and character of the host match with those of the guest, the host and the guest may bind to each other. The changes in the photophysical properties of the complex caused by different guest molecules are explored by using electronic absorption, 31P NMR and emission spectrometry.

光致发光配合物[Au_2(μ-PNP)_3](ClO_4)_2(PNP=2,6-双二苯基膦吡啶)具有一个空腔,作为一个主体配合物,当客体分子尺寸和性质特点匹配时,主客体分子相互作用,主体配合物光致发光性能和谱学性质发生变化.利用电子吸收光谱、~(31)P核磁共振波谱、发射光谱等方法,对不同客体分子存在下,配合物光物理性质改变情况作了深入的讨论.

 
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