An intramolecular force is any force that holds together the atoms making up a molecule or compound.

[edit] Types of intramolecular force

There are three main types of intramolecular force:

• Ionic
• Covalent
• Metallic

They differ in the magnitude of their bond enthalpies, and thus affect the physical and chemical properties of compounds in different ways.

v • d • e Chemical bonds Intramolecular ("strong") Covalent bonds Sigma bond · Pi bond · Delta bond Double bond · Triple bond · Quadruple bond · Quintuple bond · Sextuple bond 3c-2e · 3c-4e · 4c-2e Agostic bond · Bent bond · Dipolar bond · Pi backbond Conjugation · Hyperconjugation · Aromaticity · Hapticity · Antibonding Ionic bonds cation-pi bond · salt bond Metallic bonds Metal aromaticity Intermolecular ("weak") Hydrogen bond Dihydrogen bond · Dihydrogen complex · Low-barrier hydrogen bond · Symmetric hydrogen bond Other noncovalent van der Waals force · London dispersion force · Mechanical bond · Halogen bond · Aurophilicity · Intercalation · Stacking · Entropic force · Chemical polarity Note: the weakest strong bonds are not necessarily stronger than the strongest weak bonds

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