Supramolecular H-Bonded Assemblies of Redox-Active Metallodendrimers and Positive and Unusual Dendritic Effects on the Recognition of H2PO4-
- 10 January 2003
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 125 (5) , 1150-1151
- https://doi.org/10.1021/ja020833k
Abstract
The DSM polyamine dendrimers dend-DAB-(NH2)x of generations 1 (x = 4) to 4 (x = 32) form H-bonded dendritic assemblies with the phenol AB3 units p-HOC6H4C(CH2CHCH2)3 and p-HOC6H4C{(CH2)3SiCH2NHCOFc}3 (Fc = ferrocenyl), as shown by the shifts of the NH2 and OH signals giving a concentration-dependent common signal between 2.4 and 4.1 ppm in CDCl3. The supramolecular dendrimers efficiently recognize H2PO4- anions with positive and unusual dendritic effects upon electrochemical titration involving half-stoichiometry for G1, a sudden cyclovoltammetry wave change at the equivalent point, and a dramatic intensity decrease of the new wave.Keywords
This publication has 11 references indexed in Scilit:
- Supramolecular Gold Nanoparticles for the Redox Recognition of Oxoanions: Syntheses, Titrations, Stereoelectronic Effects, and SelectivityJournal of the American Chemical Society, 2002
- Anion Recognition and Sensing: The State of the Art and Future PerspectivesAngewandte Chemie International Edition in English, 2001
- Dendritic Encapsulation of Function: Applying Nature's Site Isolation Principle from Biomimetics to Materials ScienceAngewandte Chemie International Edition in English, 2001
- About Dendrimers: Structure, Physical Properties, and ApplicationsChemical Reviews, 1999
- Dendrimers—Branching out from curiosities into new technologiesProgress in Polymer Science, 1998
- The Dendritic Effect in Molecular Recognition: Ferrocene Dendrimers and Their Use as Supramolecular Redox Sensors for the Recognition of Small Inorganic AnionsJournal of the American Chemical Society, 1997
- Supramolecular chemistry of flexible, dendritic-based structures employing molecular recognitionChemical Communications, 1996
- Molecular Recognition and Self-Assembly by Non-amidic Hydrogen Bonding. An Exceptional Assembler of Neutral and Charged Supramolecular StructuresJournal of the American Chemical Society, 1995
- Encapsulation of Guest Molecules into a Dendritic BoxScience, 1994
- Poly(propylene imine) Dendrimers: Large‐Scale Synthesis by Hetereogeneously Catalyzed HydrogenationsAngewandte Chemie International Edition in English, 1993