Monday, October 5, 2020

Dipole-dipole Interactions

 General Chemistry Index

Where are we going with this? This page will give the ability to use laboratory observations and data to compare and contrast ionic, covalent, network, metallic, polar, and non-polar substances with respect to constituent particles, strength of bonds, melting and boiling points, and conductivity; provide examples of each type.

Dipole-dipole Interactions
Well, now, this is a sticky situation… 

Dipole-dipole interactions are intermolecular attractions that occur when the partially positively charged part of a molecule interacts with the partially negatively charged part of the neighboring molecule.

"The prerequisite for this type of attraction to exist is partially charged ions—for example, the case of polar covalent bonds such as hydrogen chloride.  Dipole-dipole interactions are the strongest intermolecular force of attraction" (See More).

"Dipole-dipole interactions are electrostatic interactions between the permanent dipoles of different molecules. These interactions align the molecules to increase the attraction" (See More).

More words from HERE:

  • Dipole-dipole interactions occur when the partial charges formed within one molecule are attracted to an opposite partial charge in a nearby molecule.

  • Polar molecules align so that the positive end of one molecule interacts with the negative end of another molecule.

  • Unlike covalent bonds between atoms within a molecule ( intramolecular bonding), dipole-dipole interactions create attractions between molecules of a substance ( intermolecular attractions).



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