Synthesis of 2-pyridone-fused 2,2′-bipyridine derivatives. An unexpectedly complex solid state structure of 3,6-dimethyl-9H-4,5,9-triazaphenanthren-10-one
作者:Stefán Jónsson、Carlos Solano Arribas、Ola F. Wendt、Jay S. Siegel、Kenneth Wärnmark
DOI:10.1039/b417485b
日期:——
2-Pyridone-fused 2,2â²-bipyridine derivatives 1a and 1b were synthesised. X-Ray diffraction analysis of 1b revealed a highly complex solid state structure with a disordered molecule imbedded in a channel structure formed by a centrosymmetric lattice of hexagonally packed, hydrogen bonded columns. The columns are assembled from three symmetry independent molecules. Dimerisation of the self-complementary cis-amide hydrogen bond motif is overridden by the fulfilment of the proton coordination ability of the phenanthroline nitrogens in accordance with Etter's rules of hydrogen bond priorities.
我们合成了 2-吡啶酮融合的 2,2â²-联吡啶衍生物 1a 和 1b。对 1b 进行的 X 射线衍射分析表明,其固态结构非常复杂,无序分子嵌入由六角形氢键柱组成的中心对称晶格所形成的通道结构中。这些柱子由三个对称性独立的分子组装而成。根据埃特(Etter)氢键优先级规则,菲罗啉硝基的质子配位能力取代了自互补顺式酰胺氢键图案的二聚化。