Energy transfer luminescence of Tb3+ ion complexed with calix[4]arenetetrasulfonate and the thia and sulfonyl analogue. The effect of bridging groupsElectronic supplementary information (ESI) available: emission spectra of Sm3+ and Dy3+ ions complexed with 2; emission spectra of Sm3+, Eu3+ and Dy3+ complexed with 3; continuous variation curves for the Tb3+ complexes with 2 and 3. See http://www.rsc.org/suppdata/p2/b0/b009151k/

Heterometallic CoIII–LnIII (Ln = Gd, Tb, Dy) Complexes on a p‐Sulfonatothiacalix[4]arene Platform Exhibiting Redox‐Switchable Metal‐to‐Metal Energy Transfer

“…[17] The coordination of lanthanides through the sulfonate groups of TCAS is the predominant mode of binding in acidic media (pH 2-4), whereas at increased pH values (5-10) binding through the lower phenolate rim becomes more favorable. [18,19] It is interesting to note that TCAS with sulfur bridges exhibits more enhanced complexability towards lanthanide ions at pH 5-10 than its classic analogue (p-sulfonatocalix [4]arene) in aqueous solutions. [18] Moreover, the binding of the Tb III ion through the lower rim of TCAS results in rather intense luminescence due to the energy transfer from the triplet levels of TCAS to the emission level of Tb III .…”

“…[18,19] It is interesting to note that TCAS with sulfur bridges exhibits more enhanced complexability towards lanthanide ions at pH 5-10 than its classic analogue (p-sulfonatocalix [4]arene) in aqueous solutions. [18] Moreover, the binding of the Tb III ion through the lower rim of TCAS results in rather intense luminescence due to the energy transfer from the triplet levels of TCAS to the emission level of Tb III . [18] It is also worth noting that the upper rim and cavity of TCAS are not taken up and able to include various guests when the metal ion is bound with its lower rim.…”

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

“…30 A stock solution of 0.01 M Ag I was prepared by dissolving AgNO3 (99.8%, Kanto Chemical Co., Inc., Tokyo) into 0.01 M HNO3. The factor was determined by photometric titration with TCAS.…”

Spectrophotometric Determination of Hydrogen Peroxide, Glucose, Uric Acid, and Cholesterol Using Peroxidase-like Activity of an Fe(III) Complex of Thiacalix[4]arenetetrasulfonate Attached to an Anion-exchanger

“…10,30 If the epithio groups of Fe 3+ -TCASA-500 could be oxidized with H2O2, in terms of the repetitive use of Fe 3+ -TCASA-500, the Fe 3+ complex of oxidized Fe 3+ -TCASA-500 would become unstable and so the activity of Fe 3+ -TCASA-500 would decrease. However, as described before, the activity level of Fe 3+ -TCASA-500 was maintained even after 10 uses.…”

“…1), prepared according to methods described in literature, 25 was donated by the Cosmo Research Institute. DEAE cellulofine A-500 (an anion-exchanger of the cellulose-type with diethylaminoethyl groups) was purchased from Seikagaku Kogyo Co. (Tokyo, Japan …”