A new series of hybrid dyes, trans-4-(4′-N,N-dialkylaminostyryl)-N-methyl pyridinium [Cd(SCN)3−]n [alkyl = Me(1), Et(2), Pr(3) and n–Bu(4)] have been successfully synthesized from hybrids of inorganic polymers and organic chromophores. The structures of four new hybrid dyes were characterized by single-crystal X-ray diffraction first. The particular features of the hybrid dyes are (1) the inorganic anions form isolated polymeric one-dimensional zig-zag chains of [Cd(SCN)3−]n with an extended π-conjugation system within the polymeric –[M–S–C≡N]–M… chain and high polarizabilities; and (2) the organic cationic chromophores determine their optical properties. Experimental results revealed that the TPA cross-section values and overall energy conversion efficiencies of hybrid dyes with different alkyl pendant groups have obviously increased from 1 to 4, and in particular, have been substantially enhanced compared to their corresponding iodide analogues 1′–4′. Therefore, we speculate that such increases are attributable to arrangements of infinite anionic [Cd(SCN)3−]n chains and synergic effects with chromophore cations.
                                    由无机聚合物和有机发色团的混合物成功合成了一系列新的杂化
染料--反式-4-(4′-N,N-二烷基
氨基
苯乙烯基)-N-
甲基吡啶鎓[Cd(SCN)3-]n[烷基=Me(1)、Et(2)、Pr(3)和n-Bu(4)]。首先利用单晶 X 射线衍射对四种新型杂化
染料的结构进行了表征。这些杂化
染料的特点是:(1) 无机阴离子形成孤立的聚合物一维之字链[Cd(SCN)3-]n,在聚合物-[M-S-C≡N]-M...链中具有扩展的π共轭体系和高极化率;(2) 有机阳离子发色团决定了它们的光学性质。实验结果表明,具有不同烷基悬垂基团的杂化
染料的 
TPA 截面值和整体能量转换效率从 1 到 4 都有明显提高,特别是与相应的
碘化物类似物 1′-4′ 相比有了大幅提高。因此,我们推测这种增加是由于无限阴离子[Cd(SCN)3-]n 链的排列以及与发色团阳离子的协同效应。