吡唑啉

However, DPP nanoparticles were found to present multiple emission from pyrene at 385 nm, pyrazoline at 465 nm and an intermolecular pyrazoline-pyrene charge-transfer state at 570 nm, and each of them possesses individual optical channel.

在粒径确定时，用一确定波长激发时，发射光谱中不同发射的最大强度直接决定于对应激发光谱在该波长下的强度。另一方面，超微粒粒径的大小同样影响着三个部分的相对强度。随着粒径的增大，吡唑啉环-芘环之间电荷转移态570 nm的荧光发射逐渐消失。

At the same time, the molecular n-n* absorption of nanoparticles were also blue-shifted, accompanied by a hardly changing n-π~* absorption as a result of the reduced overlap of the pyrazoline ringπorbital and a decrease of intermolecular interactions.

增大微粒的尺寸时从S_1态到CT念的荧光发射强度再分布表明，S_1念和CT态互相竞争并同时受纳米超微粒尺寸的影响。2、观察到了球形的1，3-二苯基-5-芘基-2-吡唑啉超微粒由于高度的单分散性而自组织排列成有序的二维阵列。

When a strong electron-withdrawing group (e.g., nitrobenzene group) is located on the position 3, the twisted configuration between pyrazoline ring and the substituted phenyl group on the position 3 is the fluorescence emission configuration of this kind of 2-pyrazolines, and the planar configuration between two moieties is also the best non-radiative decay configuration of these compounds.

对于C3位取代基为强的拉电子基团的化合物，C3位取代基与吡唑啉环相扭曲的构象是化合物分子的发光构象，而两者处于同一平面的构象是化合物的最佳非辐射衰变构象，与N1所联取代基的旋转扭曲无关。

It can be proposed that when the substituent is an electron donor, the twisted configuration between pyrazoline ring and the moiety attached on N1 is the fluorescence-emitted configuration of 2-pyrazoline, and the configuration where two moieties are placed in a co-plane is the best non-radiative decay configuration of these compounds.

这表明，对于C3位取代基为推电子基或弱的拉电子基团的化合物，N1所联取代基与吡唑啉环相扭曲的构象是化合物的发光构象，两者处于同一平面的构象是化合物的最佳非辐射衰变构象，与C3所联取代基的旋转扭曲无关。

Formation of exciplexes at the interfaces of the pyrazoline derivatives and BBOT layers were determined by photoluminescence spectral studies on the HTM/BBOT bilayers and HTM∶BBOT mixed evaporated films as well as electroluminescence measurements.

以两种吡唑啉衍生物为空穴传输材料和BBOT为电子传输材料组成双层器件，获得了相对于组成材料的荧光光谱红移和宽化的电致发光。

Eight complexes of light rare earths with dioctyldithiocarbamate,〓 xH〓O (RE=La-Tb, except for Pm) and Nine complexes of rare earths with 5-phenyl pyrazoline dithioformate, Na RE〓·xH〓O (RE=La-Dy, Y, except for Ce and Pm) have been synthesized in air and dry N〓atmosphere, respectively.

分别在空气和氮气保护条件下，合成出八种稀土与二正辛基二硫代氨基甲酸形成的配合物〓（RE=La-Tb，除Pm外）和九种稀土与5-苯基吡唑啉二硫代甲酸的固态配合物NaRE〓（La—Dy、Y、除Ce、Pm外）。

Studies on the Synthesis, Crystal Structures and Photochemical Photochemical Properties of Pyrazolone Thiosemicarbazones

论文标题：吡唑啉酮缩氨基硫脲类化合物的合成，晶体结构及光化学性质研究

The coordination compounds of rare earth with macrocyclic、pyrazolone and tripodal ligand have distinctive structure and properties, and potential applications in exploring new materials, the investigations of analysis and separation of the ions.

稀土穴醚、吡唑啉酮、三脚架化合物具有独特的结构和性质，在新材料的研究、稀土的分析及分离等方面有潜在的应用。

Flavonoid natural dyes are an important class of natural colorants, but they have some drawbacks such as lower substantivity to fiber and relatively small molar extinction coefficient; pyrazolone azo dyes have been widely applied for a long time, however, their fixation on fiber is still not perfect.

黄酮类天然染料是极其重要的一类天然色素，但存在对纤维亲和力差，摩尔消光系数低等诸多缺点：吡唑啉酮类偶氮染料尽管被长期广泛应用，但在纤维上的固色率仍不理想。

In this paper, the basic chromophores of flavonoid and pyrazolone dyes were chosen and subjected to be modified, then polyamino crosslinking groups were introduced into the prepared intermediates to afford cros...

本文选取黄酮和吡唑啉酮类染料的母体结构，拟对它们进行结构修饰，并引入多氨基可交联基团，渴望通过交联染色实现染料在纤维上接近100%的固色率，从而达到完善其各方面应用性能的目的。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。