Synthesis and Properties of Macrobicyclic Cryptates Incorporating Five- and Six-Membered Biheteroaryl Units
作者:Jean-Marie Lehn、Jean-Bernard Regnouf De Vains
DOI:10.1002/hlca.19920750422
日期:1992.6.24
Treatment of the sodium complexes with europium(III) chloride gave the corresponding EuIII cryptates. The structural and spectral properties of these compounds are described. The EuIII complexes present characteristic 1H-NMR chemical-shift features. Their luminescence properties are described.
A polynuclear complex having two or more metal atoms and/or metal ions per one ligand of the general formula (I):
(wherein, Q1 and Q2 represent each independently a divalent heterocyclic group optionally having a substituent. R1 and R2 represent each independently a direct bond or divalent hydrocarbon group, X represents a nitrogen atom or phosphorus atom, and R3 represents a monovalent organic group containing an atom selected from a nitrogen atom, oxygen atom, phosphorus atom and sulfur atom, or a hydrogen atom or hydrocarbon group