Comparison of Optical Properties of Pyrazoline Derivative Nanoparticles


Article Preview

We prepared various pyrazoline derivatives which possess dimethylamino-, ethoxy-, isopropyl-phenyl ring at the 5-position of pyrazoline. The nanoparticles of pyrazoline derivative ranging from tens to hundreds of nanometers by the reprecipitation method have been successfully prepared and their optical size-dependent properties have been investigated with UV-vis, fluorescence spectroscopy, DLS (Dynamic Light Scattering) and SEM. The size-dependent optical properties of pyrazoline organic nanoparticles have been observed in the order of dimethylamino- > ethoxy- > isopropyl- in electro-donating characters.



Solid State Phenomena (Volume 119)

Edited by:

Chang Kyu Rhee






H. S. Kang et al., "Comparison of Optical Properties of Pyrazoline Derivative Nanoparticles", Solid State Phenomena, Vol. 119, pp. 39-42, 2007

Online since:

January 2007




[1] E. Hanamura: Phys. Rev. B, Vol. 37 (1988), p.1273.

[2] R. Micheletto, H. Fukuda and M. Ohtsu: Langmuir, Vol. 11 (1995), p.3333.

[3] N.D. Denkov, O.D. Velev, P.A. Kralchevsky and I.B. Ivanov: Nature, Vol. 26 (1993), p.136.

[4] Y.R. Huang and J.A. Katzenellenbogen: Org. Lett., Vol. 2(18) (2000), p.2833.

[5] X.H. Zhang, W.Y. Lai, Z.Q. Gao, T.C. Wong, C.S. Lee, H.L. Kwong, S.T. Lee and S.K. Wu: Chemical Physics Letter, Vol. 320 (2000).

[6] S.W. Oh, D.R. Zhang and Y.S. Kang: Mater. Sci. Eng. C, Vol. 24 (2004), p.131.

[7] S.W. Oh and Y.S. Kang: Colloids and Surface A: Physicochem. Eng. Aspects, Vol. 257-258 (2005), p.415. Functional group λmax (nm) of Uv-vis λmax (nm) of fluorescence emission -N(CH3)2 30 90 -O-CH2CH3 25 43 -CH(CH3)2 20 20.

In order to see related information, you need to Login.