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Updated: May 26, 2026

Preparation of Contiguous Bisaziridines for Regioselective Ring-Opening Reactions
Published on: July 28, 2022
Bis(benzyl-trimethyl-ammonium) dichromate(VI)
1College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
This study details the crystal structure of a dichromate salt, revealing a staggered conformation and bridging oxygen atom disorder. The compound forms a three-dimensional network through intermolecular hydrogen bonds.
Area of Science:
- Inorganic Chemistry
- Crystallography
Background:
- Dichromate salts are important inorganic compounds with diverse structural properties.
- Understanding the precise arrangement of atoms in crystal structures is crucial for predicting chemical behavior.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, (C(10)H(16)N)(2)[Cr(2)O(7)].
- To investigate the conformation and disorder of the dichromate dianion.
Main Methods:
- Single-crystal X-ray diffraction analysis was employed to determine the molecular and crystal structure.
- Analysis of intermolecular interactions, including hydrogen bonding, was performed.
Main Results:
- The asymmetric unit contains one cation and half of a dichromate dianion.
- The dichromate dianion exhibits a staggered conformation.
- Disorder of the bridging oxygen atom was observed around the inversion center in a 1:1 ratio.
- Weak intermolecular C-H⋯O hydrogen bonds connect the cations and anions into a 3D framework.
Conclusions:
- The crystal structure of (C(10)H(16)N)(2)[Cr(2)O(7)] has been successfully determined.
- The observed disorder and hydrogen bonding pattern provide insights into the packing and stability of the compound.
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