A set of naphtholate esters have been prepared through the esterification reaction of hydroxy3-hydroxy-2-naphthoic acid with a series of organic alcohol (methanol, ethanol, n-propanol and i-propanol, respectively) in the presence of H₂SO₄. The title compounds were characterized by FT-IR, UV–Vis, elemental analysis (EA) and single-crystal X-ray diffraction. Compound 3 crystallizes in space group P-1, while compounds 1, 2 and 4 do in space group P2₁/c. There exist the hydrogen bonds (C/O-H···O) and the packing interactions between aromatic rings. The maximal emission peaks of compounds 1–4 can be found at 550, 551, 562 and 534 nm in the solid state, respectively; the maxima are 420, 435, 440 and 439 nm for compounds 1–4 in the solution, respectively, revealing that the luminescence maxima increase with the increase of the alkyl chain-lengths. Further, the Hirshfeld surface analysis confirms that the order of the maximal peaks is in an accordance with that of C···H/H···C interactions.

在H ₂ SO ₄存在下，羟基3-羟基-2-萘甲酸与一系列有机醇（分别为甲醇、乙醇、正丙醇和异丙醇）发生酯化反应，制备了一组萘甲酸酯。 . 通过 FT-IR、UV-Vis、元素分析 (EA) 和单晶 X 射线衍射对标题化合物进行了表征。化合物3在空间群P -1中结晶，而化合物1、2和4在空间群P 2 ₁ / c中结晶. 芳环之间存在氢键(C/OH···O)和堆积作用。化合物1-4的最大发射峰在固态时分别位于 550、551、562 和 534 nm ；溶液中化合物1-4的最大值分别为 420、435、440 和 439 nm ，表明发光最大值随着烷基链长度的增加而增加。此外，Hirshfeld表面分析证实最大峰的顺序与C···H/H···C相互作用的顺序一致。