Highly Sensitive Spectrofluorometric Determination of Terbium(III) with Tetrasodiumcalix[4]arene-p-tetrasulfonate

Calixarene-Based Molecules for Cation Recognition

“…FIAs could be based on this approach. Data on luminescence properties of Tb 3+ and Eu 3+ [181][182][183][184][185][186][187][188][189][190][191][192][193] and also other lanthanides [194][195][196][197][198][199]with quantum yields of up to 30% show that the design of the functional group acting as molecular 'antenna' to absorb the energy is very important.…”

Novel Ytterbium Complexes of Two Calix[4]resorcinarenes

“…Synthesis of 2,8,14,20-tetramethyl-(L 1 ) and 2,8,14,20-tetraphenyl-(L 2 ) 5,11,17,23-tetradiethylaminomethylpentacyclo[19,3,1,1 3,7 ,1 9,13 ,1 15,19 ]-octacosa-1(25), 3,5,7(26) 9,11,13(27),15,17,19(28),21,23dodecan-4,6,10,12,16,18,22,24-octols Diethylamine (2.9 g) and 1.2 g of paraformaldehyde were added to the 0.01 mol dm 23 solution of 2,8,14,20-tetramethyl-or 2,8,14,20-tetraphenylpentacyclo[19,3,1,1 3,7 , 1 9,13…”

“…Yoshida et al, 3 Steemers et al 4 have investigated the strongly luminescent Eu 3+ and Tb 3+ complexes with different derivatives of calix[n]arenes of phenol types. Some of them were applied to the determination of terbium 3 and the development of a time-resolved immunoassay delay system.…”

Multi-coloration of Calixarene-coated Silver Nanoparticles for the Visual Discrimination of Metal Elements

“…These observations showed that the CAS played an essential role in the multi-coloration. Since CAS does not form a metal complex with the metal ions at pH 10.0, 34 the mechanism through aggregation by receptor-analyte binding is ruled out. It should be noted that all of metal species with a concentration of 5.0 × 10 -5 M form hydroxides at pH 10.0, as judged by the solubility product (Table S1) (Fig.…”