Novel chromogenic pyridinium derivatives of calix[4]arenes, I
✍ Scribed by István Bitter; Alajos Grün; Gábor Tóth; Áron Szöll'´osy; Gyula Horváth; Béla Ágai; László T'´oke
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- French
- Weight
- 387 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0040-4020
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Novel azo-calix[4] arenes have been prepared by the incorporation of both ester and amide groups. Six bis(phenylazo)-O-substituted calix[4]arene derivatives were isolated and fully characterized. NMR analyses show that these compounds are in cone conformation in solution at room temperature.
A novel spiropyran derivative carrying a calix [4]arene group has been synthesized through incorporating two spirobenzopyran groups into one 1,3-substituent calix[4]arene derivative. Photochromic properties were studied under alternate irradiation of ultraviolet light and visible light in acetonitri