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Synthesis of Functionalized Calix[4]arene Ligands Incorporating Bipyridine N,N′-Dioxide Chromophores and Luminescence of Their Lanthanide Complexes

✍ Scribed by Luca Prodi; Silvia Pivari; Fabrizio Bolletta; Muriel Hissler; Raymond Ziessel

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 166 KB
Volume: 1998
Category: Article
ISSN: 1434-1948
DOI: 10.1002/(sici)1099-0682(199812)1998:12<1959::aid-ejic1959>3.0.co;2-0

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✦ Synopsis

Members of a new family of lanthanide complexes of the [Eu(2)] 3+ , respectively} and high metal luminescence quantum yields {Φ = 0.19 and 0.11 for [Eu(1)] 3+ and [Eu(2)] 3+ , cone-shaped podand 1 and the barrel-shaped cryptand 2, based on calix[4]arenes incorporating bipyridine N,NЈ-respectively} were obtained. The effect of OH oscillators,

attached at the lower rim of the calixarenes, on the non-dioxide chromophores, have been synthesized and characterized. The complexes were found to be stable in radiative deactivation to the ground state has been demonstrated. water and coordinating solvents. High molar absorption coefficients {ε = 28000 and 36000 M -1 cm -1 for [Eu(1)] 3+ and

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Density functional theory study of calix

Density functional theory study of calix[4]arene-N-azacrown-5, calix[4]arene-N-phenyl-azacrown-5, and their complexes with alkali-metal cations: Na+, K+, and Rb+

✍ Xiaoyan Zheng; Xueye Wang; Shanfeng Yi; Nuanqing Wang; Yueming Peng 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 473 KB

## Abstract Theoretical studies of 1,3‐alternate‐25,27‐bis(1‐methoxyethyl)calix[4]arene‐azacrown‐5 (**L~1~**), 1,3‐alternate‐25,27‐bis(1‐methoxyethyl)calix[4]arene‐__N__‐phenyl‐azacrown‐5 (**L~2~**), and the corresponding complexes M^+^/ **L** of **L~1~** and **L~2~** with the alkali‐metal cations: