Using molecular shape for the functional control of multicomponent systems is one challenges in field supramolecular chemistry. The well-known emission visible region certain lanthanide (III) salts has found a new dimension by controlled assembly architectures to enshroud and excite metal. properties these find applications as luminescent probes sensing schemes, interaction with biomolecules, or light conversion systems. Complexes Tb(III) Eu(III) can some cases be highly typically exhibit...

Abstract The synthesis of novel Tb III labels suitable for protein labelling are reported. Their luminescence properties as antibody conjugates were measured and compared to the results corresponding chelates parent ligand structures. When lowest triplet‐state energy level donor was over 23000 cm −1 , i.e. gap between 5 D 4 exceeded 2600 label derivative with a long decay time (τ = 1.35–2.93 ms) high yield (ϵ. Φ 3770–4560) found be bioaffinity assays.

Abstract The synthesis of three novel pyrazole‐containing complexing acids, N,N,N′,N ′‐{2, 6‐bis[3‐(aminomethyl)pyrazol‐1‐yl]‐4‐methoxypyridine}tetrakis(acetic acid)( 1 ), N,N,N ′, N 6‐bis[3‐(aminomethyl)pyrazol‐1‐yl]pyrazine}‐tetrakis(acetic acid) ( 2 and ′‐{6, 6′‐bis[3‐(aminomethyl)pyrazol‐1‐yl]‐2, 2′‐bipyridine}tetrakis(acetic 3 ) is described. Ligands 1–3 formed stable complexes with Eu III , Tb Sm Dy in H O whose relative luminescence yields, triplet‐state energies, emission decay...

Having a gas: Topotactic exchange (65 %) of γ-zirconium phosphate with terphenyldiphosphonic acid yielded pillared material specific area 90 m2 g−1. Subsequent treatment hypophosphorous afforded α type, no incorporated hypophosphite and 400 g−1, which took up 74 cm3g−1 H2 at 650 Torr 77 K.

The hydrophilic oxygen atoms of polyethylenoxide chains inserted as pillars in gamma-zirconium phosphate form hydrogen bonds with the acid groups host. As a result are almost perpendicular to gamma layers. Upon changing pH level supernatant solution broken and become layers (shown schematically). Thus there is reversible enlargement-shortening interlayer space.

The luminescence of certain lanthanides can be obtained in full if the metals are chelated to a suitable chromophor (antenna effect). This phenomenon may achieved within body porous solid. There many examples literature regarding this approach. present paper accounts for our recent findings concerning lanthanide zirconium phosphate, quite versatile laminar inorganic salt. strategy building 3D scaffolds from 2D salt and 1D organic pillars is detailed. covalent attachment conveniently...

Abstract The topotactic exchange reactions of γ‐zirconium phosphate and phosphate/methylphosphonate with phosphonic acids derived from azacrown ethers different sizes was examined. Prior intercalation hexylamine necessary in most cases to attain the maximum level predicted by molecular modeling. Materials imbricated or nonimbricated layers were obtained depending on crown size level. Exchange methylphosphonates only observed when had previously been intercalated. bisphosphonic acid...

The performance of photovoltaic cells using as semiconductor a film layered γ-zirconium phosphate (γ-ZrP) containing Ru(bpy)3 and bipyridinium ions (viologens) electron relays has been studied. materials are easily prepared by intercalation Ru complexes the into preformed γ-ZrP nano sheets colloidal solutions in appropriate solvent concentration. High loading these two guests obtained determined elemental analysis. Inclusion complex intergallery spaces can be assessed powder XRD monitoring...

Two macrobicyclic ligands derived from an 18-membered tetralactam ring and 2,2′-bipyridine or 2,6-bis(pyrazol-1-yl)pyridine moieties, 1 2, respectively, form stable complexes with GdIII, EuIII, TbIII ions in aqueous solution. The ligand-based luminescence is retained the GdIII cryptates, whereas this radiative deactivation quenched EuIII cryptates by ligand-to-metal energy transfer, resulting usual metal-centered emission spectra. Singlet- triplet-state energies, emission-decay lifetimes,...

Shape shifting: A novel pillared, solid organic–inorganic phase is prepared by stepwise double topotactic exchange of γ-zirconium phosphate with pentaethylenglycol-derived diphosphonic acid and hypophosphite. The interlayer distance the title material sharply increases when treated methylamine. This enormous sensitivity microcrystalline porosity towards intercalation small molecules has no precedent.

Abstract Electron donors based on Ru(bpy) 3 (bpy = 2,2′‐bipyridine) are covalently attached to the walls of γ‐ZrP and acceptor species viologen arranged side by following quite simple experimental protocols. The resulting materials characterized using usual techniques their luminescence electrochemical properties assessed. Strong evidence is presented efficient occurrence photoinduced electron transfer in solid state among active transparent inorganic matrix. prepared may find applications...

ADVERTISEMENT RETURN TO ISSUEPREVLetterNEXTSynthesis of Novel Macrocyclic Lanthanide Chelates Derived from Bis-pyrazolylpyridineErnesto Brunet, Olga Juanes, Rosa Sedano, and Juan-Carlos Rodríguez-UbisView Author Information Departamento de Química Orgánica, C-1, Facultad Ciencias, niversidad Autónoma Madrid, 28049-Madrid, Spain Cite this: Org. Lett. 2002, 4, 2, 213–216Publication Date (Web):December 22, 2001Publication History Received24 October 2001Published online22 December inissue 1...

The pyrazolyl cryptands [bpz.bpz.bpz](1) and [2.2.bpz](2) have been obtained in a one-step, non high-dilution macrobicyclization reaction, from 1,1′-bipyrazole derivative; similarly, tripodal ligands (7)–(9) with pyrazole structure are described.