Synthesis of tetraamino derivative of thiacalix[4]arene and its acid-base property studied by UV spectroscopy

Hu, X., Xia, N., Ye, F., Ren, J., & Shi, X. (2004). Synthesis of tetraamino derivative of thiacalix[4]arene and its acid-base property studied by UV spectroscopy. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 60(7), 1427–1430. https://doi.org/10.1016/j.saa.2003.07.007