Related Experiment Video
Updated: May 29, 2025

Synthetic Methodology for Asymmetric Ferrocene Derived Bio-conjugate Systems via Solid Phase Resin-based Methodology
Published on: March 12, 2015
Contorting the hetero phosphaquinoid: synthesis and electronic insights into a non-planar, ferrocenyl phosphaquinoid
Rajesh Deka1, Samir Chattopadhyay2, Andreas Orthaber1
1Synthetic Molecular Chemistry, Department of Chemistry Ångström Laboratory, Uppsala University, BOX 523, 75120 Uppsala, Sweden. andreas.orthaber@kemi.uu.se.
Abstract:
We report a highly contorted phosphaquinoid by substituting one of the exocyclic CC bonds of an anthraquinodimethane unit with a phosphaalkene unit (-CP-Mes*, Mes* = 2,4,6-tri-butylbenzene) and end-capping the opposite terminus with 'C(Fc)Ph'. Both isomers (E,Z) exhibit butterfly-like distortion of the anthracene core and demonstrate remarkable stability towards air and moisture.
More Related Videos
Related Concept Videos
Crystal Field Theory - Tetrahedral and Square Planar Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Oxidation of Phenols to Quinones
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
Five-Membered Heterocyclic Aromatic Compounds: Overview
π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene

![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)