Multifunctional Luminescence Sensors Assembled with Lanthanide and a Cyclotriveratrylene‐Based Ligand
作者:Li Ma、Qin Zhang、Hua Wu、Jin Yang、Ying‐Ying Liu、Jian‐Fang Ma
DOI:10.1002/ejic.201700874
日期:2017.10.2
(H3L), four lanthanide‐based compounds, Eu(L)(DMF)2 (1), Tb(L)(DMF)2 (2), Gd(L)(DMF)2 (3), and Yb(L)(DMF)(H2O) (4), have been constructed. Compounds 1–3 are isostructural and show charming two‐bowl interlocked chains linked by L3– anions and Ln3+ cations. The chains are further linked by C–H···π interactions to form two‐dimensional supramolecular layers, respectively. In 4, L3– anions bridge Yb3+ ions
The design and synthesis of a new family of siderophores based on cyclotriveratrylene is described. The ligands consist of a C3-cyclotriveratrylene unit provided with three arms (spacers) ending with hydroxamate, catecholate, bipyridine, or iminopyridine units suitable for the octahedral coordination of transition metals and particularly for the complexation of iron(II) and iron(III).
Synthesis and Study of Calix[6]cryptamides: A New Class of Heteroditopic Receptors that Display Versatile Host–Guest Properties Toward Neutral Species and Organic Associated Ion-Pair Salts
作者:Stéphane Le Gac、Ivan Jabin
DOI:10.1002/chem.200701051
日期:2008.1.7
The synthesis of a new family of molecular receptors, namely the calix[6]cryptamides, was achieved through an original [1+1] macrocyclization step that consists of a peptide-coupling reaction betweentripodal triscarboxylic acids and a calix[6]trisamine subunit. Several C3- or C3v-symmetrical calix[6]arene-based compounds capped by a trisamido cryptandunit on the narrow rim have been obtained, with