1,2,4-Triazincs XIII. The bond lengths and bond angles of a 1,2,4-triazine |
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| Authors: | J. L. Atwood D. K. Krass William W. Paudler |
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| Abstract: | The bond distances and bond angles of 5-(p-chlorophenyl)-1,2,4-triazine determined by three dimensional X-ray crystallographic analysis are reported. The pertinent bond lengths are N1? N2, 1.335Å, N2-C3, 1.314Å, C3? N4, 1.339; N4-C5, 1.317; C5-C6, 1.401; C6? N1, 1.317Å. A comparison of these bond distances with those of similar polyazabenzenes shows that the canonical structure of 1,2,4-triazine with a N1? N2 single bond more closely represents the ground state of this ring system, than the one with a N1? N2 double bond. |
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