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Phthalocyaninesaresyntheticsubstancesrelatedtothenaturallyoccurringporphyrins.Itsthermalandchemicalstabilitymakesitveryusefulinmolecularelectronicsl.TheLBfilmsofphthalocyaninehavebeenwidelystudiedinthepastdecade.ButfewreportsonthemixedLBfilmsofphthalocyanineandporphyrinhavebeenpublished"'HerewereportanovelmixedLBfilmfabricatedbydepositingporphyrinandphthalocyaineinonelayerbasedonmolecularrecognition.Figure1.ThestructureofcompoundAandBAsymmetricallysubstitutedphthalocyanineAandporphyrinBa… 相似文献
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利用LB技术研究了带有4个长碳氢链的酞菁铜化合物(CuC12Pc)的单分子膜及它与十八胺(ODA)、二十酸(AA)的混合LB膜的聚集结构形态. 结果表明这种酞菁铜化合物在气液界面上可以形成比较稳定有序的双层Langmuir膜, 且可以转移质量较好的多层LB膜. 利用原子力显微镜(AFM)研究了酞菁铜分子的聚集体结构, 发现CuC12Pc/AA混合膜表现为网状的聚集结构, 而CuC12Pc/ODA混合膜形成长岛颗粒状聚集, 并结合UV-Vis吸收光谱讨论了酞菁铜分子形成不同聚集结构的原因. 相似文献
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单臂液晶冠醚LB膜的研究 总被引:4,自引:2,他引:4
首次研究了4种单液晶冠醚(1~4)的LB膜成膜特性,实验发现它们在气-液界面均可形成单分子膜,但4的稳定性较差,3易转移到玻璃基片上形成Y型膜。4种化合物与硬脂酸以1:1混合形成稳定的Y型LB膜。小角X射线衍射证实了膜的有序结构。用CPK原子模型对成膜分子构型和面积进行了估算,其结果与实验一致。并讨论了分子结构对成膜性能的影响。 相似文献
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酞菁铜衍生物作为LB膜材料具有良好的热稳定性,与衬底的附着力强,有丰富的光电特性,并对NH_3有较高的气敏特性,本文应用透射电子显微镜研究了2种新型酞菁铜衍生物LB膜成膜过程的结构变化。 相似文献
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ZHANG Yan-jie LI Lin-song JIN Jian ZHAO Ying-ying LI Tie-jin DU Xi-guang YANG Shu-qing 《高等学校化学研究》1999,15(1):73-75
Phthalocyanineshavebeenintensivelystudiedbecausetheyexhibitmanyoutstandingchemicalandphysicalpropertiesforapplications[1,2].M... 相似文献
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酞菁化合物有序聚集体已成为材料化学中的研究热点[1,2],在酞菁分子中引入冠醚会大大改善酞菁化合物的气敏性,在提高响应速度和重复性的同时,其响应温度可降到室温[3,4].研究冠醚酞菁气敏性质的通常方法是将其制成浇铸膜[4],这种膜是无序的.膜中分子的... 相似文献
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Acidichromism in the LB film of bolaform Schiff base 总被引:1,自引:0,他引:1
Mei Fang Yin Ti Feng Jiao Ming Hua Liu 《中国化学快报》2007,18(1):30-32
A bolaform(BNC 10)and single-headed(HNOA)amphiphilic Schiff bases containing naphthyl group were designed and their Langmuir-Blodgett films were investigated.It was found that both the LB films show acidichromism,i.e.a reversible color change upon alternatively exposing the films to HCl and NH_3 gases,respectively.It was further found that the bolaform Schiff bases film could trap NH_3 gas during the acidichromic process. 相似文献
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STRUCTURAL AND PHOTOELECTRIC PROPERTIES OF A NOVEL AMPHIPHILIC ZINC PHTHALOCYANINE MIXED LB MULTILAYERS 下载免费PDF全文
Phthalocyanines have been widely used as pigments and P-type organic photoconductor for electrophotography. Now,they seem ready for exploitation in a wide range of other di-verse application concerning solar cells,electrochromic devices,molecular electronics and chemical gas sensors,A new approach has been developed recently for the formation of ph-thalocyanine thin films by use of LB technique. 相似文献
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研究了PVB单分子膜的π~A曲线和稳定性,沉积了优质LB膜,发现将PVB与CdSt2形成交替异质的LB膜能提高膜的光学质量;在CdSt2LB膜的上面封装PVBLB膜能保持CdSt2LB膜的结构。 相似文献
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LIU Hong-Guo FENG Xu-Sheng YANG Kong-ZhangInstitute of Colloid Interface Chemistry Shandong University Jinan Shandong ChinaCHENG Chuan-Fu LI Jian Department of Physics Shandong Normal University Jinan Shandong ChinaLIANG Wei-AnDepartment of Chemistry Shandong University Jinan Shandong China 《中国化学》1995,13(5):415-422
The structure and properties of mixed monolayer or LB film of 5,10,15,20-tetra-4-oxy(2-stearic acid)phenyl porphyrin/C60 were studied. A isotherms and small angle X-ray diffraction (SAXD) results show that C60 molecules were incorporated into the cavities of por-phyrin molecules in mixed monolayer and LB film . UV-vis spectra of mixed LB films show that the absorption intensity of porphyrin varied compared with pure porphyrin film, probably arising from the interactions between C60 and porphyrin ring. C60 molecules in mixed systems are well-dispersed. The TPP(CO2H)/C60 mixed LB film is a kind of two-dimensional host-guest system. 相似文献
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表面压测量及LB膜转移装置的研制 总被引:1,自引:0,他引:1
自Blodgelt开创了通过单分子层的连续转移制做多层组合膜的技术(即LB膜转移技术)以来,由单分子膜的组装来建造分子水平的有序结构已成为可能。国内研究LB膜所用的仪器一般都是进口的,且价格昂贵。我们研制了一种经济实用、高性能的LB膜压测量及转移装置,其性能指标达到国外同类仪器水平。 相似文献
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冠醚化二苯甲酮的合成及其光物理行为 总被引:1,自引:0,他引:1
本文报道采用在多聚磷酸中酰化的方法,合成了冠醚化二苯甲酮1~8。它们与叔胺类共用可能被用作光引发剂。为此,用紫外光谱详细研究了这些化合物及其络合后的光物理行为。还提及化合物3和4作为紫外吸收剂的可能性。 相似文献