| Abstrakt: |
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, ß = 125.31(1) °,Dm= 1.254,Dc= 1.259 gcm-3 andZ= 2. Intensities were obtained from ?–2? scans with a Syntex automated diffractometer using graphite-monochromated MoKa 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>2s(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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