Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Electron Crystallography of CaMoO4 Using High Voltage Electron Microscopy

  • Kim, Jin-Gyu (Division of Electron Microscopic Research, Korea Basic Science Institute (KBSI)) ;
  • Choi, Joo-Hyoung (Division of Electron Microscopic Research, Korea Basic Science Institute (KBSI)) ;
  • Jeong, Jong-Man (Division of Electron Microscopic Research, Korea Basic Science Institute (KBSI)) ;
  • Kim, Young-Min (Division of Electron Microscopic Research, Korea Basic Science Institute (KBSI)) ;
  • Suh, Il-Hwan (Department of Material Chemistry, Korea University) ;
  • Kim, Jong-Pil (Busan Center, Korea Basic Science Institute (KBSI)) ;
  • Kim, Youn-Joong (Division of Electron Microscopic Research, Korea Basic Science Institute (KBSI))
  • Published : 2007.03.20
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Abstract

The three-dimensional structure of an inorganic crystal, CaMoO4 (space group I 41/a, a = 5.198(69) A and c = 11.458(41) A), was determined by electron crystallography utilizing a high voltage electron microscope. An initial structure of CaMoO4 was determined with 3-D electron diffraction patterns. This structure was refined by crystallographic image processing of high resolution TEM images. X-ray crystallography of the same material was performed to evaluate the accuracy of the TEM structure determination. The cell parameters of CaMoO4 determined by electron crystallography coincide with the X-ray crystallography result to within 0.033-0.040 A, while the atomic coordinates were determined to within 0.072 A.

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