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Related Experiment Video

Updated: Jun 1, 2026

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation

Published on: October 1, 2019

4-Acetyl-pyridinium perchlorate.

¹Ordered Matter Science Research Center, Southeast University, Nanjing 210096, People's Republic of China.

Acta Crystallographica. Section E, Structure Reports Online

|May 18, 2011

Summary

The crystal structure of a molecular salt reveals ions linked by hydrogen bonds, forming chains. These chains are further stabilized by additional C-H interactions, contributing to the overall crystal packing.

Area of Science:

Crystallography
Materials Science
Supramolecular Chemistry

Background:

Understanding the intermolecular forces that govern crystal packing is crucial for designing materials with specific properties.
Molecular salts, composed of discrete cations and anions, offer a versatile platform for studying hydrogen bonding and other non-covalent interactions.

Purpose of the Study:

To elucidate the crystal structure of the molecular salt C(7)H(8)NO(+)·ClO(4) (-).
To identify and characterize the intermolecular interactions responsible for the observed crystal packing.

Main Methods:

Single-crystal X-ray diffraction was employed to determine the three-dimensional structure of the title compound.
Analysis of the crystal structure involved identifying hydrogen bond donors and acceptors, as well as other non-covalent interactions.

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Main Results:

The crystal structure is characterized by the formation of chains propagating along the [010] direction, driven by N-H⋯O hydrogen bonds between the cation (C(7)H(8)NO(+)) and the perchlorate anion (ClO(4)(-)).
The packing of these chains is further stabilized by weaker C-H⋯O interactions, contributing to the overall lattice stability.

Conclusions:

The study reveals the dominant role of N-H⋯O hydrogen bonds in directing the assembly of molecular salt crystals into extended chains.
The interplay of hydrogen bonding and C-H⋯O interactions dictates the final crystal architecture, providing insights into crystal engineering strategies.