Back to Library

(AI-Powered Suggestions)

Related Topics

A topic from the subject of Physical Chemistry in Chemistry.

  • 10 months ago
  • 3 min read
>scrollPanescrollPanescrollPanescrollPanescrollPanescrollPanescrollPane>,

Starlight>

Spectroscopy and Structure of Molecules

Introduction

Spectroscopy is the study of the interaction of electromagnetic radiation with matter. It is a powerful tool for determining the structure and properties of molecules.


Key Points


  • Spectroscopy can be used to determine the following information about molecules:

    • Structure: The arrangement of atoms in a molecule.
    • Bonding: The types of bonds between atoms in a molecule.
    • Dynamics: The vibrational, rotational, and electronic motion of molecules.

  • There are many different types of spectroscopy, each of which uses a different region of the electromagnetic spectrum.
  • The most common types of spectroscopy used to study molecules are:

    • Infrared (IR) spectroscopy
    • Microwave spectroscopy
    • Nuclear magnetic resonance (NMR) spectroscopy
    • Ultraviolet-visible (UV-Vis) spectroscopy


Main Concepts

The main concepts of spectroscopy and structure of molecules are:



  • Energy levels: Molecules have a set of discrete energy levels, which are determined by the arrangement of atoms and bonds in the molecule.
  • Transitions: When a molecule absorbs or emits electromagnetic radiation, it transitions from one energy level to another.
  • Selection rules: The selection rules determine which transitions are allowed for a given molecule.
  • Spectroscopic data: The spectroscopic data obtained from a molecule can be used to determine the structure and properties of the molecule.

>

Share on: