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Raman/IR Spectroscopic Characterization of the Ni(dmit)<sub>2</sub>-Complexes with trans-4-[2-(1-Ferrocenyl)vinyl]-1-Methylpyridinium Chromophore
Raman/IR Spectroscopic Characterization of the Ni(dmit)2-Complexes with trans-4-[2-(1-Ferrocenyl)vinyl]-1-Methylpyridinium Chromophore
Journal of the Korean Chemical Society. 2004. Feb, 48(1): 107-110
Copyright © 2004, The Korean Chemical Society
  • Received : November 14, 2003
  • Published : February 20, 2004
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Yoon-Kyoung Han
Dong-Youn Noh

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EXPERIMENTAL SECTION
(FcCHCHPymCH 3 ) x [Ni(dmit) 2 ] complex was prepared by means of the electro-crystallization technique using a typical H-type cell. 2 (FcCHCHPymCH 3 ) [Ni(dmit) 2 ] 2 and [( n -C 4 H 9 ) 4 N][Ni(dmit) 2 ] 11 were obtained according to the previously reported procedure. The IR spectra were obtained by the KBr pellet method on a MIDAC FT-IR spectrometer. The micro-Raman measurements were carried out at room temperature using a Raman microscope spectrometer (Renishaw Ltd.) equipped with an He:Ne (λ o =6328Å) laser. The incident laser power applied was adjusted to as low as 0.06 mW, and was focused on a 1 μm 2 area, because using a higher laser intensity caused the samples to burn. The samples were mounted on a glass microscope slide. Each spectrum was scanned over 20 times between 200 and 2000 cm -1 with a 200 sec time constant at a 1 cm -1 resolution, and the Raman shifts thereby obtained were calibrated against a standard Si peak at 520 cm -1 . Typically, more than six hours was required for collecting the Raman data of each sample.
Acknowledgements
This work was supported by The Institute of Natural Sciences, Seoul Women’s University (2002). We wish to express our thanks to Dr. H. H. Wang (Argonne National Laboratory, USA) for the micro-Raman spectroscopy measurements.
References
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