Atoms are the fundamental building blocks of all matter. This is the basis of chemistry. But if they are the bricks, then what is the mortar? What holds the atoms together to form molecules? The answer is "bonds" which, of course, doesn't really...

In chemistry, a molecular orbital is a region in which an electron may be found in a molecule.[1] MOs are introduced in qualitative and pictorial models of bonding in molecules, and specify the spatial distribution and energy of one (or a pair) of...

INTRODUCTION A variety of accelerated weathering techniques have been developed and utilized over the last 40 years of coatings research in an effort to predict "real" weatherability of all coating systems in a short period of time.[1-4] Accurate predictive capabilities have obvious...

Application of Molecular Orbital Calculations to Interpret the Chlorophyll Spectral Forms in Pea Photosystem I' ABSTRACT The energy and oscillator strength of electronic transitions of chlorophyll (Chl)-amino acid complexes were calculated by using molecular orbital methods. The energies varied widely with coordinated...