CHEM 001 Lecture Notes - Lecture 14: Electronegativity, Bond-Dissociation Energy, Biomolecule

• School: College of The Sequoias
• Department: Chemistry (CHEM)
• Course: CHEM 001
• Professor: guerra

Document Summary

Electron distribution influences the shapes of proteins, enzymes, rna, and. Fun fact: if you denature a biomolecule, like a protein, you are essentially changing its electron densities in polar covalent bonds, the electrons are not equally shared. An increasing difference in electronegativity results in an increasing difference in charge which results in an increasing ionic character in the bond. Charge difference can be measured and is called an electric dipole moment, represented by (mu), in units called debye (d), aka. Coulombs*m) the dipole moment equals to the charge times the distance (according to its units), =q*d. Weaker (longer) bonds are easily broken and more likely to be involved in a reaction. Stronger (shorter) bonds are harder to break and less reactive. Strength of a bond is measured by its dissociation energy (energy needed to break a bond) Remember that bond lengths are measured by angstroms.