140362-03-4Relevant academic research and scientific papers
Chromogenic Bis(urea) Spherands: Synthesis and Complexation of Lithium and Sodium Ions
Chapoteau, Eddy,Chowdhary, Manjit S.,Czech, Bronislaw P.,Kumar, Anand,Zazulak, Wolodymyr
, p. 2804 - 2808 (1992)
Synthesis of two novel 18-membered bis(urea) spherands bearing 2,4,6-trinitroanilino and 4-(diethylamino)phenylazo chromophores are described.The UV-vis spectral changes in the presence and absence of Na+ and Li+ ions are reported at pH optima.Chromogenic
