Related Experiment Video
Updated: Apr 25, 2026

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
Benzodithiophene based π-conjugated macrocycles: synthesis, morphology and electrochemical characterization
1Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur 741252, India. sanjiozade@iiserkol.ac.in anjan.bedi@gmail.com.
Abstract:
A 7,8-didodecyloxybenzo[1,2-b:4,3-b']dithiophene (BdT-Dod) containing a macrocycle was synthesized from a thiophene capped BdT-Dod comonomer through a Ti(iv) mediated McMurry reaction and characterized by (1)H NMR, (13)C NMR and MALDI-TOF mass spectrometry. Additionally, the morphological characterization was performed by AFM and SEM to investigate the self-aggregation properties. The macrocycle underwent self-assembly in the solid state to form fibers on the Si/SiO2 surface with a length in the μm range and a thickness of about 400 nm.
More Related Videos
08:51Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
Published on: October 24, 2017
06:55Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
Published on: September 26, 2016
Related Concept Videos
Thermal and Photochemical Electrocyclic Reactions: Overview
Thermal Electrocyclic Reactions: Stereochemistry
Selection Rules: Thermal Activation
Conjugated systems containing an even number of π-electron pairs undergo a conrotatory ring closure. For example, thermal electrocyclization of (2E,4E)-2,4-hexadiene, a conjugated diene containing two π-electron pairs, gives trans-3,4-dimethylcyclobutene.
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction
Structure of Conjugated Dienes
Conjugated dienes are compounds characterized by the presence of alternating double and single bonds. In a conjugated system like 1,3-butadiene, the unhybridized 2p orbital on each carbon overlaps continuously, allowing the π electrons to be delocalized across the entire molecule. In contrast, this type of overlap does not occur in cumulated and isolated dienes, such as 2,3-pentadiene and 1,4-pentadiene, respectively. Instead, the π electrons remain localized between the...
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group...