第 38 卷第 2 期 |  | Vol. 38 No. 2 | 2008 年 4 月 | Apr 2008 |
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所屬欄目:功能材料
C60-鹵代苯吡咯烷的合成及光譜表征 |
霍延平1,曾和平2,張 焜1,方巖雄1,趙肅清1
(1. 廣東工業(yè)大學(xué) 輕工化工學(xué)院,廣東 廣州 510006;2. 華南理工大學(xué) 化學(xué)科學(xué)學(xué)院,廣東 廣州,510641) |
摘 要:合成了一種新的C60-鹵代苯吡咯烷衍生物1,以1H NMR、13C NMR 、FT-IR、 FAB-MS和UV 進(jìn)行了結構表征. 測量其在甲苯溶液中的熒光發(fā)射光譜,并在此最大發(fā)射波長(cháng)下測得其熒光壽命為5.26 ns,而C60在室溫的熒光壽命大約是1.2 ns。說(shuō)明C60-鹵代苯吡咯烷(1)在激光激發(fā)下發(fā)生了加成基團苯環(huán)與母體C60之間的分子內能量轉移和電荷傳遞,有可能產(chǎn)生長(cháng)壽命的電荷分離態(tài)。理論計算化合物1 的電子結構和前線(xiàn)軌道進(jìn)一步驗證了上述結果。 |
關(guān)鍵詞:C60-鹵代苯吡咯烷;熒光發(fā)射光譜;熒光壽命;電荷傳遞 |
中圖分類(lèi)號:O635.1 文獻標識碼:A 文章編號:1009-9212(2008)02- 0051-03 |
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Synthesis and Optical Properties of Fulleropyrrolidine Containing Halogenenated Benzene Dyad |
HUO Yan-ping1,ZENG He-ping2,ZHANG Kun1,FANG Yan-xiong1,ZHAO Su-qing1
(1. Faculty of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510006,China;2. Institute of Functional Molecule ,South China University of Technology,Guangzhou 510641,China) |
Abstract:A new fulleropyrrolidine 1 containing 2-fluoro-4-Bromid-benzenee dyad was synthesized. The molecular structure was identified and characterized by 1H NMR,13C NMR,FTIR ,UV and FAB-MS. The fluoresence emission spectra and fluoresence lifetime under the largest emission wavelength were measured in toluene. It was found that the fluorescence lifetime of 1 was 5.26 ns,which was larger than the lifetime of C60(1.2 ns). This result showed that intramocular charge and energy-transfer had occurred between benzenee and C60 in the 1,and the long lived charge-separated state may occur in the 1. Electronic structure and frontier orbitals of 1 was calculated. Theoretical calculations and xperiments provided a coherent picture. |
Key words:fulleropyrrolidine;the fluoresence emission spectra;fluoresence lifetime;the charge transfer processes |
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基金項目:國家自然科學(xué)基金資助項目(20376015,20672023),廣東省自然科學(xué)基金資助項目(07300884,06104656),廣東省教育部產(chǎn)學(xué)研結合項目(2007B090400020)。
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作者簡(jiǎn)介:霍延平(1974-),男,河北張家口人,講師,博士,主要從事有機合成及光電材料的研究。(E-mail:tigerhuo1974@yahoo.com.cn)
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收稿日期:2008-02-15
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