Hydrogen bond is an attractive force between a partially positive charged hydrogen and a partially negative charged atom (oxygen and nitrogen). The bond or bonds are mostly strong in comparison to normal dipole-dipole and dispersion forces. Yes you can think of hydrogen bonding in terms of MO theory. Within a vessel, water molecules hydrogen bond not only to each other, but also to the cellulose chain which comprises the wall of plant cells. Intramolecular à hydrogen bonding that occurs within the same molecule. Hydrogen bonding of aromatic amines in hydroxylic solvents. If you are also interested in the other intermolecular forces (van der Waals dispersion forces and dipole-dipole interactions), there is … There are two types of hydrogen bonds: Intermolecular à hydrogen bonding that occurs between two molecules. Electronic Theories of Hydrogen Bonding 215 With this in mind it can safely be stated that the hydrogen bond is partially ionic. Absorption spectroscopy of substituted anilines and hydrogen bond-induced rehybridization of trivalent nitrogen atoms. This is a very weak bond and strength of hydrogen bond (5-10 Kcal per bond) is much less than the strength of covalent bond. 2. Density Functional Theory and Atoms-in-Molecules Investigation of Intramolecular Hydrogen Bonding in Derivatives of Malonaldehyde and Implications for Resonance-Assisted Hydrogen Bonding. Chemistry / Critical Essay / Vol. The Journal of Physical Chemistry A 2007 , 111 (34) , 8519-8530. 1, No. The cohesion-adhesion theory of transport in vascular plants uses hydrogen bonding to explain many key components of water movement through the plant's xylem and other vessels. (779) Advances in theory of the hydrogen bond in the last few years have mainly been due to: (a) the availability of all-valence-electron semiempirical molecular orbital theories, which have rendered calculations on molecular systems up to 50 atoms fairly straightforward, and (b) the new generation of computers, which have made possible nonempirical (ab initio) self-consistent field calculations on … Marc Henry is a Professor of Chemistry, Materials Science, and Quantum Physics at the University of Strasbourg.. Part 1. The Hydrogen Bond. intermolecular bonding - hydrogen bonds This page explains the origin of hydrogen bonding - a relatively strong form of intermolecular attraction. Valence bond and molecular orbital theories are used to explain chemical bonding.
Article Critical Essay Topic Chemistry Issue Volume 1, Issue 2 March 2015 Share Facebook Twitter. The degree of hydrogen bonding and macroscopic thermodynamic properties for pure and mixed fluids are predicted with the hydrogen bonding lattice fluid (LFHB) equation of state over a wide range in density encompassing the gas, liquid and supercritical states.