C. Piguet et al., THE FIRST STRUCTURALLY CHARACTERIZED AND STRONGLY LUMINESCENT SELF-ASSEMBLED HELICAL HETERODINUCLEAR D-F COMPLEX, Journal of the Chemical Society, Chemical Communications, (24), 1995, pp. 2575-2577
The new segmental ligand L(2), which possesses a terminal N,N'-diethyl
carboxamido group, reacts with Eu-III and Zn-II to give the highly sta
ble and strongly luminescent self-assembled helical heterodinuclear d-
f complex [EUZn(L(2))3](5+).