Unsymmetrically urea silatranes: Synthesis, characterization and a selective on–off fluorescence response to acetate anion

Arabian Journal of Chemistry

Amandeep Saroa¹  Sunita Rani¹  Promila¹  Gurjaspreet Singh¹  Subash Sahoo¹  Duane Choquesillo-Lazarte² 

[1] Department of Chemistry, Panjab University, Chandigarh 160014, India;Laboratorio de Estudios Cristalográficos, IACT, CSIC-University of Granada, Avda. de las Palmeras 4, 18100 Armilla, Granada, Spain;

关键词: Silatrane;    Urea;    Isocyanate;    Fluorescence spectroscopy;    Anion sensor;   

DOI  :  10.1016/j.arabjc.2015.07.017

来源: DOAJ

【 摘 要 】

New unsymmetrically Substituted Urea enclosed Silatranes (USUS) 2–5 are prepared in good yield by nucleophilic attack of pyrrolidine, piperidine, 3-methylpyridine-2-amine and N-methylbenzenamine containing active hydrogen atom on newly synthesized 3-isocyanatopropylsilatrane 1. All the compounds have been characterized by elemental analysis, IR, multinuclear (1H and 13C) NMR and mass spectrometry. The single crystal X-ray crystallography technique facilitates the establishment of exact structures of silatranes 2, 3 and 4. The fluorescence titration results have revealed a selective on–off fluorescence response of silatranes toward acetate anion.

【 授权许可】

Unknown