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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 15, Number 3
BKCSDE 15(3)
March 20, 1994 

 
Title
The Crystal and Molecular structure of Sodium Magnesium Tris(oxalato)Chromate(Ⅲ) Decahydrate, NaMg[Cr(ox)3]·10H2O
Author
Jung-Sun Suh, Jung-Yup Shin, Cheonho Yoon, Kyu-Wang Lee, Il-Hwan Suh*, Jin-Ho Lee*, Bo-Young Ryu*, Sung-Su Lim*
Keywords
Abstract
NaMg[Cr(C2O4)3]·10H2O crystallizes in the trigonal space group P3c1, with a=b= 16.969(3), c=12.521(3) Å, α=β= 90°,γ=120°, ρ=1.734 gcm-3, μ=6.46 cm-1, Z=6. Intensities for 1062 unique reflections were measured on a four-circle diffractometer with Mo Kα radiation (λ=0.71069 Å). The structure was solved by direct methods and refined to a final ωR value of 0.084. X-ray crystal structure showed that magnesium ion appears to be occupied over two sites with the occupancy ratio of 2:1. The crystal possesses 10 water molecules instead of previously estimated 9 water molecules.
Page
245 - 249
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