Related Experiment Video
Updated: Jul 3, 2026
09:31
Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices
Published on: March 27, 2019
Synthesis of octacarboxy spherosilicate
Hongzhi Liu1, Shin-ichi Kondo, Nobuhiro Takeda
1Advanced Technology Research Center (ATEC), Gunma University, Kiryu, Gunma 376-8515, Japan. liu-hongzhi@hotmail.com
Journal of the American Chemical Society
|July 10, 2008
Summary
A new method prepares octakis[(p-carboxyphenyl) dimethylsilyl]silicate, a versatile monomer for functional spherosilicate derivatives. This synthesis offers a pathway to novel materials with diverse applications.
Area of Science:
- Materials Science
- Organic Chemistry
- Nanotechnology
Background:
- Spherosilicates are cage-like silica structures with tunable properties.
- Functionalized spherosilicates serve as building blocks for advanced materials.
- Developing efficient synthetic routes for functionalized spherosilicates is crucial.
Purpose of the Study:
- To report a feasible new preparation method for octakis[(p-carboxyphenyl) dimethylsilyl]silicate.
- To establish this compound as a versatile monomer for further functionalization.
- To characterize the synthesized compound thoroughly.
Main Methods:
- Synthesis initiated from octakis[dimethyl(p-methylphenyl)silyl]silicate.
- Bromination of the precursor using N-bromosuccinimide (NBS).
- Hydrolysis of the brominated intermediate in the presence of silver nitrate (AgNO3) and formic acid.
Main Results:
- Successful synthesis of octakis[(p-carboxyphenyl) dimethylsilyl]silicate.
- The compound was characterized using Fourier-transform infrared spectroscopy (FTIR), Nuclear Magnetic Resonance (NMR) spectroscopy (1H, 13C, 29Si), Electrospray Ionization Mass Spectrometry (ESI-MS), and elemental analysis.
- Confirmation of the octacarboxylphenyl functionalization on the spherosilicate core.
Conclusions:
- A novel and feasible synthetic route for octakis[(p-carboxyphenyl) dimethylsilyl]silicate has been established.
- The synthesized compound is a versatile monomer for creating diverse functional spherosilicate derivatives.
- The comprehensive characterization validates the structure and purity of the target compound.
Related Concept Videos
02:26Preparation and Reactions of Sulfides
Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
03:35Hybridization of Atomic Orbitals II
sp3d and sp3d 2 Hybridization
03:24Hybridization of Atomic Orbitals I
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...