Related Experiment Video
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-Carb-oxy-1-phenyl-ethanaminium nitrate
Wen-Xian Liang1, Xiao-Wei Chu, Zhi-Rong Qu
1Ordered Matter Science Research Center, College of Chemistry and Chemical, Engineering, Southeast University, Nanjing 210096, People's Republic of China.
This study details the crystal structure of a nitrate salt, revealing how hydrogen bonds link its components. These interactions form a stable two-dimensional network, crucial for understanding molecular assembly.
Area of Science:
- Crystal Chemistry
- Supramolecular Chemistry
- Materials Science
Background:
- Understanding the intermolecular forces governing crystal structures is fundamental in chemistry.
- Nitrate salts are common and exhibit diverse packing motifs.
- Hydrogen bonding plays a critical role in the self-assembly of crystalline materials.
Purpose of the Study:
- To elucidate the crystal structure and hydrogen bonding interactions of the title nitrate salt (C(9)H(12)NO(2) (+)·NO(3) (-)).
- To analyze the specific hydrogen bond types and their contribution to crystal packing.
- To characterize the resulting supramolecular architecture.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of hydrogen bonding networks, including bifurcated interactions.
- Identification of intermolecular contacts (N-H⋯O, O-H⋯O, C-H⋯O).
Main Results:
- The crystal structure reveals a salt composed of a cation (C(9)H(12)NO(2) (+)) and an anion (NO(3) (-)).
- A bifurcated N-H⋯(O,O) hydrogen bond was observed between the cation and anion.
- Intermolecular hydrogen bonds (N-H⋯O, O-H⋯O, C-H⋯O) stabilize the crystal lattice.
- A two-dimensional network structure was formed by the interconnected cations and anions.
Conclusions:
- The crystal packing of the title nitrate salt is predominantly governed by a network of intermolecular hydrogen bonds.
- The observed hydrogen bonding pattern results in a stable two-dimensional supramolecular architecture.
- This detailed structural analysis provides insights into the solid-state behavior of this class of compounds.
Related Concept Videos
Nomenclature of Carboxylic Acid Derivatives: Amides and Nitriles
The IUPAC and common names of amides are derived from the parent carboxylic acid, by replacing the suffix “oic acid” and “ic acid,” respectively, with “amide.” In the following example, the IUPAC name ethanamide is derived from ethanoic acid, and the common name, acetamide, is obtained from acetic acid.
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...
Nitrosation of Enols
2° Amines to N-Nitrosamines: Reaction with NaNO2
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism
Carboxylic Acids to Methylesters: Alkylation using Diazomethane

