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Updated: Jun 1, 2026

Preparation and In Vivo Use of an Activity-based Probe for N-acylethanolamine Acid Amidase
Published on: November 23, 2016
2-Methyl-amino-5-nitro-benzoic acid.
This study details the crystal structure of a novel organic compound, C(8)H(8)N(2)O(4). It reveals intricate hydrogen bonding patterns, including intra-molecular bonds forming S(6) rings and inter-molecular bonds creating infinite sheets.
Area of Science:
- Crystallography
- Molecular structure analysis
- Supramolecular chemistry
Background:
- Understanding molecular interactions is crucial in chemistry.
- Crystal engineering relies on predicting and controlling intermolecular forces.
- Hydrogen bonding plays a key role in the assembly of crystalline solids.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C(8)H(8)N(2)O(4).
- To investigate the hydrogen bonding network within the crystal lattice.
- To characterize the supramolecular architecture formed by the compound.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of hydrogen bond donors and acceptors.
- Topological analysis of the hydrogen bond network.
Main Results:
- The compound C(8)H(8)N(2)O(4) exhibits a nearly planar molecular conformation.
- An intra-molecular hydrogen bond forms a six-membered S(6) ring.
- Inversion dimers and inter-molecular hydrogen bonds link molecules into infinite sheets parallel to the (102) plane.
Conclusions:
- The crystal structure is stabilized by a combination of intra-molecular and inter-molecular hydrogen bonds.
- The observed hydrogen bonding pattern dictates the formation of a 2D supramolecular network.
- This detailed structural analysis provides insights into the solid-state behavior of this compound.
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1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by water loss...
meta-Directing Deactivators: –NO2, –CN, –CHO, –⁠CO2R, –COR, –CO2H

