当发光基团松弛，C15次甲基桥的两个二面角的扭曲是相反的。
As the chromophore relaxes, the twist of the C15 methine bridge about its two dihedral angles is reversed.
而酰胺型开链配体具有合成简单、结构可调和共轭敏化基团可换等优点，通过调整配体的功能基团可以实现配合物更好的发光性能。
Amide ligands have the advantage in simple synthesis, adjustable structure and changeable sensitive conjugate groups, which make their complexes indicated good luminescence properties.
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