Related Experiment Video
Updated: Aug 10, 2025
06:35
Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
8.2K
Anion-Responsive Boron-Spiro-Centered π-Electronic Systems That Form Ion-Pairing Assemblies.
Naoya Koda1, Yohei Haketa1, Miyu Yokoyama1
1Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan.
Organic Letters
|February 13, 2023
Summary
Researchers introduced naphthalenediolates to boron complexes, tuning electronic properties by naphthyl group positions. These modified complexes formed ion-pairing assemblies with stacked naphthyl units.
Area of Science:
- Organic Chemistry
- Materials Science
- Supramolecular Chemistry
Background:
- Dipyrrolyldiketone boron complexes are versatile platforms for electronic materials.
- Naphthalenediolates offer tunable electronic and photophysical properties.
Purpose of the Study:
- To explore the orthogonal introduction of naphthalenediolates onto dipyrrolyldiketone boron complexes.
- To investigate how the substitution positions of naphthyl moieties influence the electronic properties of these complexes.
- To study the self-assembly behavior of the resulting anion complexes with countercations.
Main Methods:
- Orthogonal functionalization of dipyrrolyldiketone boron complexes with various naphthalenediolates.
- Spectroscopic and electrochemical characterization to determine electronic properties.
- X-ray crystallography and other techniques to analyze the supramolecular structures of ion-pairing assemblies.
Main Results:
- Successful synthesis of dipyrrolyldiketone boron complexes functionalized with diverse naphthalenediolates.
- Demonstrated correlation between the substitution positions of naphthyl groups and the resulting electronic properties.
- Formation of ion-pairing assemblies driven by pi-stacking interactions between naphthyl units.
Conclusions:
- The strategic placement of naphthyl substituents on naphthalenediolates provides a method for fine-tuning the electronic characteristics of boron complexes.
- The observed ion-pairing and pi-stacking interactions are key to the formation of ordered supramolecular structures.
Related Concept Videos
03:24Hybridization of Atomic Orbitals I
47.5K
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...
47.5K
04:01VSEPR Theory and the Effect of Lone Pairs
42.7K
Effect of Lone Pairs of Electrons on Molecule Geometry
42.7K
02:55Exceptions to the Octet Rule
28.7K
Many covalent molecules have central atoms that do not have eight electrons in their Lewis structures. These molecules fall into three categories:
28.7K
01:18π Molecular Orbitals of the Allyl Cation and Anion
4.4K
An allyl group is a three-carbon conjugated system where the sp³-hybridized allylic carbon is bonded to a CH=CH2 group via a single bond. Allyl anions can be obtained by treating propene with a strong base that can deprotonate methyl groups. Allyl cations are formed as intermediates during substitution reactions involving allylic halides. In both cases, the hybridization of the allylic carbon changes from sp3 to sp2, giving rise to a carbon chain with three sp2-hybridized carbons, each with...
4.4K
03:51Molecular Orbital Theory II
19.5K
Molecular Orbital Energy Diagrams
19.5K
02:42Valence Bond Theory
9.0K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
9.0K