SYNTHESIS AND CHARACTERIZATION BY INFRARED AND MOSSBAUER SPECTROSCOPIES OF SOME NEW SnR2 (R = Me, Ph, Bu) RESIDUE CONTAINING ARBOXYALKYLPHOSPHONATE ADDUCTS AND DERIVATIVES. Journal of Engineering Studies and Research, [S. l.], v. 29, n. 1, p. 7–14, 2023. Disponível em: https://jesr.ub.ro/journal/article/view/361. Acesso em: 13 sep. 2025.