The Calculation of H-X Strength of Bonds in Some Hydrides of Certain Atoms of Mendeleev's Periodic Table, Hydrocarbons and Different Carbohydrates

The strengths of H-X bond (Sb) of lithium, sodium, beryllium, magnesium, calcium, carbon, silicon, nitrogen, phosphorus, arsenic, oxygen and sulfur were calculated with use of equation ΔaΨo gas/cond = Σ ΔatomΨo gas/cond - ΔfΨo gas/cond = Σ Sb gas/cond, in which were included the functions of free energy and the heats of formation in gaseous and condensed phases. The calculated bond energies of hydrides represent from itself the small magnitudes in a condensed state relatively to the same values in the gaseous phase. One of the reasons it is a small magnitude of the formation of chosen atoms and the formed from they hydrides in a condensed state. The calculations of strengths of bonds of C-C, C-H, C-O, C=O and O-H bonds of hydrocarbons and carbohydrates with the use of Widows-Excel-function «Search of the decision by a method gradient descent» of condensed carbohydrates of a various spatial structure were made first time. The reduced magnitudes of the force of all bonds in condensed phase, comparing to gas state, designated as a strength of bond (Sb) carbohydrates, necessary to explain by the presence significant hydrogen bonds, dipole-dipole- and dispersive interactions in biochemical molecules of such type.