Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5372532 | Biophysical Chemistry | 2006 | 10 Pages |
Abstract
Pyrophosphate prototypes such as methyl triphosphate and methyl diphosphate molecules in their different protonation states have been investigated at high levels of quantum chemical calculations. The optimized geometries, the thermochemistry of the hydrolysis and the molecular orbitals contributing to the high energy of these compounds have been analyzed. These investigations provide insights into the “high energy” character of ATP molecule. Further, the dependence of vibrational frequencies on the number of phosphate groups and the charged states has also been presented. These results can aid the interpretation of spectra obtained by experiments on complexes containing pyrophosphate prototypes.
Related Topics
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Physical and Theoretical Chemistry
Authors
Priti Hansia, Nandini Guruprasad, Saraswathi Vishveshwara,