Five diverse 1D supramolecular chains, {[4-pmntd]}_n(1), {H₂[4-pmntd]•2Br⁻}_n(2), {H₂[4-pmntd]•2NO₃⁻}_n(3), {H₂[4-pmntd]•2ClO₄⁻}_n(4), {H₂[4-pmntd]•2BF₄⁻}_n(5), (where 4-pmntd was N,N′-bis (4-pyridylmethyl)naphthalene diimide) were synthesized and characterized by X-ray single-crystal structure analysis, IR spectroscopy, elemental analyses, thermogravimetric analyses, fluorescence detection. The anions effect construction of their 1D chain structural diversity through different π interactions. Compound 1 through the adjacent pyridine rings parallel π∙∙∙π interactions formed 1D linear chain structure. Compound 2 through Br⁻ anion∙∙∙π interactions and halogen bond interactions formed 1D zigzag chain structure. Compound 3 through lone pair∙∙∙π interactions of naphthalene diimide and the adjacent carboxyl group formed 1D stairway chain structure. Compound 4 through ClO₄⁻ anion∙∙∙π interactions formed 1D ribbon chain structure. Compound 5 through parallel π∙∙∙π interactions of the adjacent naphthalene diimide planes and pyridine rings formed 1D ladder chain structure. The five compounds’ fluorescence properties and thermal stabilities were investigated. The compound 2 solution could fluorescence detection for iodide anion via fluorescence quenching.

五个不同的1D超分子链，{[4- pmntd]} _Ñ（1），{H ₂ [4- pmntd]•2BR ^- } _Ñ（2），{H ₂ [4- pmntd]•2NO ₃ ^- } _Ñ（3），{H ₂ [4- pmntd]•2ClO ₄ ^- } _ñ（4），{H ₂ [4- pmntd]•2BF ₄ ^- } _ñ（5），（其中4- pmntd是N，N'通过X射线单晶结构分析，IR光谱，元素分析，热重分析，荧光检测合成了双（4-吡啶基甲基）萘二酰亚胺。阴离子通过不同的π相互作用影响其一维链结构多样性的构建。化合物1通过与相邻的吡啶环平行的π∙∙∙π相互作用形成一维线性链结构。化合物2通过溴^-阴离子∙∙∙π相互作用和卤素 键相互作用形成的1D Z字形链结构。通过萘二酰亚胺与相邻羧基的孤对∙∙∙π相互作用形成化合物3，形成一维阶梯链结构。通过ClO的化合物4₄ ⁻阴离子∙∙∙ππ相互作用形成一维带状链结构。化合物5通过相邻的萘二酰亚胺平面和吡啶环的平行π∙∙∙ππ相互作用形成一维梯形链结构。研究了这五种化合物的荧光性质和热稳定性。化合物2溶液可以通过荧光猝灭来荧光检测碘离子。