Crystal and molecular structure of 1,1′,3,3′-tetraphenyloxaldiamidrazone |
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Authors: | R L Harlow S H Simonsen |
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Institution: | (1) Department of Chemistry, University of Texas at Austin, 78712 Austin, Texas |
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Abstract: | 1,1,3,3-Tetraphenyloxaldiamidrazone, C26H24N6, crystallizes in the monoclinic system: space groupP21/c,a= 13.946(1) Å,b= 5.706(1) Å,c= 17.109(1) Å, = 125.31(1) °,D
m
= 1.254,D
c
= 1.259 gcm–3 andZ= 2. Intensities were obtained from –2 scans with a Syntex automated diffractometer using graphite-monochromated MoK radiation. The structure was solved by direct methods. Full-matrix least-squares refinement of all positional and thermal (anisotropic for the nonhydrogen atoms and isotropic for the hydrogen atoms) parameters using 2022 reflections I>2(itI)] converged at a conventionalR of 0.041. The molecule is characterized by a conjugated pi system which includes the central N=C–C=N moiety and two of the four aniline groups. No intermolecular and only weak intramolecular hydrogen bonds are present. |
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