| 光谱学与光谱分析 |
|
|
|
|
|
| The Negative Temperature Effect of UV Absorbance on C60 in Different Solvents |
| YANG Tao1，ZENG Fan-qing1, 2*，GE Qi1，XIONG Qian1，GUO Feng1，ZHANG Xun-gao2 |
1. Electronic Information School, Wuhan University, Wuhan 430072, China
2. Center of Analysis and Measurement, Wuhan University, Wuhan 430072, China |
|
|
|
|
Abstract Ultraviolet Absorption Spectrum of Difference in Temperature(UVSDT) of C60 was studied in different solvents by UV-240 ultraviolet-visible spectrophotometer. Two samples were tested, one of which acted as reference sample and the other as ready test sample. During the period of the experiment, the temperature of the reference sample remained constant, while that of the ready test sample was changed to obtain difference in temperature. The two samples were scanned in succession by UV-240 ultraviolet-visible spectrophotometer using a certain range of wavelength. By changing the temperature of the ready test sample, we can get the ultraviolet absorption spectrum changing curve with temperature differential. In addition, the curve was studied by putting C60 in different solvents(alcohol, cyclohexane, n-hexane and 2-propanol).The curve indicates that the intensity of the absorption peak wavelength of C60 decreased with increasing the temperature of the sample, and a negative peak was observed in UVSDT. And the greater the difference in temperature, the higher the intensity of the negative peak. The result reflects that the structure of C60 depends strongly on its temperature, and the dependent relationship is closely related to the type of π-π* electron transition. So it’s valuable to test the absorption rate of C60 and obtain the changing curve in real time. It’ll help us to separate, purify, analyze, and characterize C60. And it’ll also help to do research on the mechanism of the chemical reactions, which take place in solvents, as well as to improve veracity.
|
|
Received: 2002-12-28
Accepted: 2003-06-06
|
|
|
|
Corresponding Authors:
ZENG Fan-qing
|
|
| Cite this article: |
|
YANG Tao,ZENG Fan-qing,GE Qi, et al. The Negative Temperature Effect of UV Absorbance on C60 in Different Solvents [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(02): 180-182.
|
|
|
|
| URL: |
|
http://www.gpxygpfx.com/EN/Y2004/V24/I02/180 |
[1] Lü Shao-zhe et al(吕少哲等). Journal of Optoelectronics Laser(光电子·激光), 1999, 10(5)：425.
[2] Ruoff R S, Malhotra R, Huestis D L et al. Nature, 1993, 362(6415-6419): 140.
[3] ZHOU Xi-huang et al(周锡煌等). Acta Physico-Chemica Silica(物理化学学报), 1996, 12(1): 4.
[4] XU Zhu-de et al.(徐铸德等). Acta Chemica Sinica(化学学报), 1996, 54(1): 27.
[5] Korobov M V, Mirakian A L, Avramenko N V et al. J. Phys. Chem. B, 1998, 10(5): 425.
[6] ZENG Fan-qing et al(曾繁清等). Analysis and Testing Technology and Instruments(分析测试技术与仪器), 1997, 3(2): 125.
[7] ZENG Fan-qing, JIN Li-fan, HAI Hui et al(曾繁清，金利凡，海 汇等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2001, 21(2): 218.
[8] CHEN Su-nian et al(陈涑年等). J. Wuhan University, Nature Science Ed(武汉大学学报(自然科学版)), 1992, 3: 121.
[9] Zhu Ling, Xu Zhisan, Jing Zhizhong et al. Fullerene Science & Technology, 1993, 1(1): 45.
|
| [1] |
LIU Chang, YUE Ling-yue, WANG Xin-ke, SUN Wen-feng, ZHANG Yan* . Measurement of Optical Parameters of Organic Solvents by THz Time-Domain Reflection Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(06): 1471-1475. |
| [2] |
LIU Chang, WANG Xin-ke, SUN Wen-feng, ZHANG Yan* . Accurate Optical Parameters Extracting of Non-Polar Organic Solvents in the Terahertz Range [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(11): 2886-2890. |
| [3] |
ZHA Qing-qing,WEI Xian-wen*. Synthesis and Spectral Properties of Novel C60 Derivative/Ag Nanocomposites[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(07): 1592-1595. |
| [4] |
LIU Rui-li,YIN Juan-juan,MA Ji-fei,LI Qing-nuan,LI Wen-xin* . Fluorescence Properties of C60-Glucocorticoids[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(06): 1161-1163. |
| [5] |
SUN Yu-hua, BAO Fang, GU Wei, YAO Jian-lin, GU Ren-ao*. Study on Surface-Enhanced Raman Spectroscopy of C60 Films on Ag Electrodes[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(04): 707-710. |
| [6] |
GU Wei,SUN Yu-hua,GU Ren-ao*. Surface-Enhanced Raman Scattering Studies of C60 on Ag Electrodes in Nonaqueous Solution [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(12): 1991-1994. |
| [7] |
SUN Deng-ming,FANG Hua-cai. Determination of Trace Manganese by Non-Organic Solvents Extraction Catalytic Spectrophotometry in Mn(Ⅱ)-H2O2-EBT-PEG-2000 System [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(08): 1315-1317. |
|
|
|
|
