Tenacic Acids: A New Class of Tenacious Binders to Metal Oxide Surfaces
| Autor: | Vladimir L. Kolesnichenko, Carl A. Mitchell, Galina Goloverda, Anastasia LeBeaud, Rajesh Komati, Huy Do |
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| Rok vydání: | 2018 |
| Předmět: |
Aqueous solution
Chemistry Organic Chemistry Inorganic chemistry Oxide 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis Article 0104 chemical sciences Adduct Metal chemistry.chemical_compound Adsorption Dynamic light scattering visual_art visual_art.visual_art_medium Titration 0210 nano-technology Hybrid material |
| Zdroj: | Chemistry (Weinheim an der Bergstrasse, Germany). 24(55) |
| ISSN: | 1521-3765 |
| Popis: | The backbone of 2-hydroxyisophthalic acid was identified as a potential metal oxide anchor because of the perfect alignment of all three of its donor groups for binding to inorganic surfaces. It can therefore be used in the design of organic linkers for metal oxide based hybrid materials. Optimized and scalable methods for the synthesis of 2-hydroxyisophthalic acid (1) and its 5-substituted derivatives: 5- bromo- (2), 5-sulfooxy- (3), 5-hydroxy- (4), and 5-PEG600 (5) are presented. Dynamic light scattering (DLS) demonstrated that compound 2 inhibits Fe(OH)(3) precipitation when Fe(III) aqueous solutions are titrated with NaOH, while similar titrations in the presence of the structurally-related isophthalic and salicylic acids, both missing the third donor group, show turbidity at pHs as low as 2.3 and 3.5, respectively. The adduct synthesized from 4.5 nm γ-Fe(2)O(3) nanoparticles and 5 is water-, alcohol- and CH(2)Cl(2)-soluble, and forms stable aqueous colloids in the pH range of 4.4–8.7. Moreover, at a pH close to neutral these colloids survive at 100°C, demonstrating the high practicality of 2-hydroxyisophthalic acid for nanoparticulate inorganic/organic hybrid material design. |
| Databáze: | OpenAIRE |
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