Related Experiment Video
Updated: Oct 6, 2025

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
Conformationally Distinct [26]Heterorubyrin(1.1.0.1.1.0) Macrocycles and Their Bis-BODIPYs: Synthesis, Structure, and
Jayaprakash Ajay1, Thondikkal Sulfikarali1, Sandra Mariya George1
1Indian Institute of Science Education and Research Thiruvananthapuram, Kerala 695551, India.
Abstract:
Two conformationally different [26]rubyrin(1.1.0.1.1.0) macrocycles with varying heteroatoms (S/O) and their bis-BODIPYs are reported. The solid-state structure confirms ON with fairly planar pyrrole-inverted conformation, whereas a thiophene-inverted structure for SN is observed. Such conformational differences can also be clearly realized from their spectral and optical features. Upon BF2 complexation, both rubyrins led to their respective bis-BODIPYs where SN-BOD displayed a perfectly planar conformation as evident from its X-ray structure.
More Related Videos
10:17Efficient Construction of Drug-like Bispirocyclic Scaffolds Via Organocatalytic Cycloadditions of α-Imino γ-Lactones and Alkylidene Pyrazolones
Published on: February 7, 2019
07:49Conventional BODIPY Conjugates for Live-Cell Super-Resolution Microscopy and Single-Molecule Tracking
Published on: June 8, 2020
Related Concept Videos
Stereoisomerism of Cyclic Compounds
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
Woodward–Hoffmann Selection Rules and Microscopic Reversibility
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 double...
UV–Vis Spectroscopy: Woodward–Fieser Rules
Thermal and Photochemical Electrocyclic Reactions: Overview