PAMAM修饰的六苯并蔻衍生物的合成及其光物理研究

doi:10.7517/j.issn.1674-0475.2013.01.004

影像科学与光化学 ›› 2013, Vol. 31 ›› Issue (1): 24-32.DOI: 10.7517/j.issn.1674-0475.2013.01.004

PAMAM修饰的六苯并蔻衍生物的合成及其光物理研究

魏恒星, 曾毅, 陈金平, 李迎迎, 李嫕

中国科学院理化技术研究所光化学转换与功能材料重点实验室, 北京 100190

收稿日期:2012-05-21 修回日期:2012-08-15 出版日期:2013-01-15 发布日期:2013-01-15
通讯作者: 李嫕, 曾毅
基金资助:
国家自然科学基金(21004072, 21002109, 21073215, 21173245);科技部国家重点基础研究发展计划(2010CB934500)资助项目.

Synthesis and Photophysical Study of Hexa-peri-hexabenzocoronene Modified with PAMAM Dendrimers

WEI Heng-xing, ZENG Yi, CHEN Jin-ping, LI Ying-ying, LI Yi

Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry,Chinese Academy of Sciences, Beijing 100190, P.R.China

Received:2012-05-21 Revised:2012-08-15 Online:2013-01-15 Published:2013-01-15

摘要/Abstract

摘要： 设计合成了外围以0.5、1.5、2.5代聚酰胺-胺(PAMAM)树枝形聚合物修饰的六苯并蔻衍生物HBC-C₆-PAMAM-D_m(m=0.5, 1.5, 2.5), 化合物结构通过了¹HNMR、¹³CNMR、IR和MS的表征.测定了HBC-C₆-PAMAM-D_m在四氢呋喃、乙腈和二氯甲烷中的吸收和荧光发射光谱, 三种溶剂中不同代数的HBC-C₆-PAMAM-D_m均以聚集态形式存在,外围树枝形聚合物骨架与核心HBC发色团的振动耦合作用随代数增加而增强,导致HBC振动能级不均化,引起吸收和荧光光谱发生变化.

关键词: 六苯并蔻, 聚酰胺-胺树枝形聚合物, 聚集体, 吸收, 荧光

Abstract: A series of hexa-peri-hexabenzocoronene(HBC) modified with PAMAM dendrimers, HBC-C₆-PAMAM-D_m(m=0.5, 1.5, 2.5), were synthesized and their structures were characterized by IR, ¹HNMR, ¹³CNMR and MALDI TOF mass spectra. Steady state photophysical studies of these compounds in tetrahydrofuran, acetonitrile, and dichloromethane indicated that HBC-C₆-PAMAM-D_mform aggregates in solution. The absorption and emission of HBC units are affected by the peripheral dendritic backbones due to the vibrational coupling between HBC and the dendritic moieties. The disorder of the vibrational state of HBC increases as dendrimer generation increases.

Key words: hexa-peri-hexabenzocoronene, PAMAM dendrimer, aggregate, absorption, fluorescence

中图分类号:

魏恒星, 曾毅, 陈金平, 李迎迎, 李嫕. PAMAM修饰的六苯并蔻衍生物的合成及其光物理研究[J]. 影像科学与光化学, 2013, 31(1): 24-32.

WEI Heng-xing, ZENG Yi, CHEN Jin-ping, LI Ying-ying, LI Yi. Synthesis and Photophysical Study of Hexa-peri-hexabenzocoronene Modified with PAMAM Dendrimers[J]. Imaging Science and Photochemistry, 2013, 31(1): 24-32.

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PAMAM修饰的六苯并蔻衍生物的合成及其光物理研究

Synthesis and Photophysical Study of Hexa-peri-hexabenzocoronene Modified with PAMAM Dendrimers

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