Biochemistry

Hydrogen Bonding

Hydrogen Bonding A particularly important type of dipole-dipole interaction is hydrogen bonding. It’s the main reason for the stability of the double-helix secondary structure of DNA, the unusual phase diagram of water, and the secondary structure of proteins in our bodies. Strictly speaking, hydrogen bonds are a special case of Read more…

By Credible Hulk, ago
Chemistry

Ion-Dipole Interactions and Hydrophilicity

Ion-Dipole Interactions and Hydrophilicity Ion-dipole forces are generally stronger than dipole-dipole interactions because at least one of their participants is an ion, which means it has a net electric charge, whereas dipole-dipole forces involve polar molecules with no net electric charge. These interactions explain why ionic compounds tend to be Read more…

By Credible Hulk, ago
Chemistry

Dipole-Dipole Interactions

Dipole-dipole interactions Many covalently bonded molecules have a net neutral electric charge, but do not distribute their charge evenly. Some parts of their structure have greater electron density than others. This is again a result of differences in electronegativity. For example, chlorine is more electronegative than carbon. Consequently, bonds between Read more…

By Credible Hulk, ago
Chemistry

Ion-Ion Interactions

Ion-ion interactions Recall that ions are atoms or molecules that have lost or gained one or more electrons with respect to their electrically neutral counter-parts, such that they have a net electric charge. As a result, two or more ions can exert electrostatic forces on each other. This is the Read more…

By Credible Hulk, ago
Chemistry

The Role of Electrostatics in Intermolecular Interactions

Electrostatics Recall that electrostatics is the study of stationary electric charges. Charged particles are characterized as either positive or negative. Like charges repel, whereas opposite charges attract. Symmetries in the laws of electromagnetism imply that these roles could be reversed with minimal consequence to our theoretical understanding or its pertinence Read more…

By Credible Hulk, ago