An analysis of the crystal structures of secondary ammonium carboxylate salts using the ring stacking and laddering principle has been carried out. A Cambridge Structural Database analysis showed that this ionic model is applicable to the structures of these salts, and gives additional insight into their structural motifs. The crystal structures of seven new secondary ammonium carboxylate salts are reported, and analysed in terms of ring stacking and laddering.

中文翻译：

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羧酸铵盐的环堆积和阶梯化：延伸至仲铵盐

使用环堆积和阶梯原理对仲羧酸铵盐的晶体结构进行了分析。剑桥结构数据库分析表明，该离子模型适用于这些盐的结构，并提供了对其结构基序的更多了解。报告了七种新的仲羧酸铵盐的晶体结构，并根据环堆叠和阶梯化进行了分析。