4-(N-咔唑基)查尔酮的合成及其光学性质

4-N-咔唑基苯甲醛和苯乙酮经aldol反应合成了一种新型含咔唑基查尔酮——4-(N-咔唑基)查尔酮(2),其结构经1H NMR,IR,MS和元素分析表征。运用UV-Vis和单光子荧光光谱研究了2的光学性质。结果表明:2的λmax位于360 nm和320 nm附近;2在CH2Cl2和DMF中具有良好的荧光发射能力,λem位于520 nm。     

Synthesis and Crystal Structure of a Novel 1D Mercury（II） Iodide Coordination Polymer Containing 40-Membered Macrocycle

A mercury coordination polymer [Hg3(TizT)2I6]n (Mr = 1921.72, TizT = 2,4,6- tri(imidazole-1-yl)-1,3,5-triazine) containing a 40-membered macrocycle which was constructed by four TizT ligands and four mercury(II) iodide molecules had been synthesized by the reaction of HgI2 with TizT. The complex was characterized by elemental analysis, FT-IR, 1H NMR spectra and X-ray crystallography. The crystal of the complex belongs to the monoclinic system and C2/c space group with a = 35.840(5), b = 8.169(5), c = 14.980(5) , β = 104.466(5)°, Z = 4, V = 4247(3) 3, Dc = 3.006 g·cm-3, μ = 15.223 mm-1, F(000) = 3384, Rint = 0.0504, wR = 0.0833 and constructs a chair-like conformation of cyclohexane one by one, which forms a 1-D polymer through the fashion of fused ring aromatic hydrocarbon. The hydrogen bonds and π-π interactions shape the 2-D network structure. The two compounds excited weak fluorescence.     

一种新型苯硫酚衍生物4-[4-(硝基)苯乙烯基]苯硫酚的合成和表征

采用固相Wittig反应合成了一种新型的苯硫酚衍生物,运用元素分析、红外光谱、核磁、有机质谱等测试方法对化合物进行了表征,并讨论了合成条件、红外光谱特性及质谱裂解途径.     

咔唑衍生物的固相合成及其双光子吸收和光存储应用

以N-乙基咔唑为原料,通过室温固相化学反应改进合成了2种双光子吸收材料(咔唑类衍生物2, 8-二[2'-(吡啶-4"-基)乙烯基]-5-乙基咔唑(L1),2, 8-二[2'-(吡啶-2"-基)乙烯基]-5-乙基咔唑(L2),其结构经¹H NMR,IR和MS确证,利用Z-扫描技术,测试了其纳秒下的双光子吸收截面为6 210和5 590 GM (1 GM = 1 ´ 10 ^-50 cm ⁴ · s · photon ^-1),用820 nm的飞秒单脉冲激光作为写入激光对存储介质进行双光子光漂白,对其作为三维光存储材料作了初步的探索。     

聚集诱导发光材料研究进展

传统的有机光功能材料在聚集状态下,荧光通常会减弱或淬灭,制约了有机光电功能材料的实际应用.具有聚集诱导发光(AIE)性质的化合物在聚集状态下,通过分子组成、结构和堆积模式的调节实现荧光增强,弥补了传统光功能材料在该方面的不足,在电致发光、固体激光、荧光传感与生物成像等领域展现出广阔的应用前景.该文主要介绍了目前研究最全面、适用范围最广的分子内旋转受限、分子内振动受限、分子内运动受限和形成J-聚集体等机制.同时分类介绍了一些基于分子结构和组成的AIE化合物.     

用亚硫酸氢钠提高不饱和有机烯酸的产率

对合成山梨酸,肉桂酸,2—呋喃丙烯酸的方法进行了改进:在卤仿反应发生后,酸化前用亚硫酸氢钠去除去过量的次氯酸钠,产物的产率比直接酸化分别提高了21.3%,19.74%,27%,重结晶后纯度达99.05%,99.3%,99.1%。经红外,质谱,碳氢数据分析均符合要求。     

新型吡唑基咔唑衍生物的合成及其光学性质

以咔唑为原料,合成了一种新型的咔唑衍生物--9-丁基-3,6-二[3'-(5'-三氟甲基)吡唑基]咔唑(4),其结构经1H NMR,IR和MS表征.运用UV和单光子荧光光谱研究了中间体和4的光学性质,结果表明:4有望成为具有应用价值的发光材料.     

两种吩噻嗪衍生物的合成，光学性质及其电化学性质

The synthesis, luminescence and electrochemical properties of two novel phenothiazine derivatives were presented, which exhibit good one-photon fluorescence emission. The quantum yields and solvent effects of them were studied in detail. Compound 3,7-bis（2-4＇-imidazolylbenzylidenehydrazonoethyl）-（0-ethylphenothiazine） （5） was used as an effective initiator, of which two-photon fluorescence spectra were investigated under 800 nm fs laser pulse and the measured two-photon absorption cross-section was 18 × 10^-50 cm^4·s per photon. Two-photon initiated polymerization microfabrication experiments were carried out. X-ray diffraction analyses revealed that the shape of the compound 3,7-bis（2-pyrid-4＇-ylmethylidenehydrazonoethyl）-（0-ethylphenothiazine） （4） looks like a butterfly with nearly planar wings. The dihedral angle of the two benzene rings is 37.6° and there is an obvious π-π stacking interaction between the molecules in the crystal.     

亚甲基蒽苯乙烯吡啶盐的合成、结构及双光子吸收性质

以氯化4-甲基-N-9-亚甲基蒽吡啶盐为原料,合成了一种新型的苯乙烯吡啶盐,通过红外、核磁共振氢谱、碳谱、电喷雾质谱、单晶X射线衍射等测试技术对化合物的结构进行了表征。单晶X射线衍射结果表明,该化合物属于单斜晶系,空间群为P21/c,晶胞参数a=1.255 7(1)nm,b=1.539(1)nm,c=2.220 2(8)nm,β=101.099(1)°,V=4.210 5(4)nm3,Z=4,Dc=1.159 g/cm3。用1 064 nm皮秒脉冲激光研究其三阶非线性光学特性,双光子吸收系数β=0.028 cm/GW,吸收截面为σ=8.68×10-48cm4.s.photon-1,表明目标化合物具有良好的三阶非线性光学性质。