Studies on the synthesis of these NLO materials show the evolution of conjugated chains longer, molecule structure more complex and multi-dimensional.
这类材料的合成研究呈现出共轭链由短到长，分子由简单到复杂，由一维到多维的趋势。
2
All the atoms in each molecule are coplanar, indicating the whole molecules is fully delocalized and conjugated.
每个分子中所有的碳原子和氮原子都在同一个平面上，表明这两个分子都是共轭芳香性分子。
3
Because of the weakened conjugated actions between the carbon-carbon double bonds in the benzene ring and its strong strain in molecule, 5,6,9,10- tetradehydrobenzocyclooctene decomposes easily.