Bond energy dependence

Bond energies depend on the types of atoms that are bonded together. The bond energies of representative diatomic molecules show that bond energies span a wide range of values from substance to substance ... 

The d bond energy depends on the strength of the bond integrals dd<7, ddtr, and dd<5, which determine the density of states in eqn (7.32). 

There is a difference between the two calculations. Bond energies are calculated from the energies of the specific bond found in many different compounds (an average). The calculations for heats of formation are for the particular molecule under consideration (the entire molecule). In reality, the energy required to break a bond is dependent on the location of that bond in a specific molecule because the bond energy for it is determined by the environment in which the bond is located. In other words, the bond energy depends not only on the specific bond, but on the influences of the bonds and atoms in the surroundings provided by the molecule in which that bond is found. 

Various factors on which bond energy depends are ... 

Cox7 has refined the calculation of heats of atomization of the localized structures by taking into account that (1) the C-X bond energy depends... 

It is a trivial observation that the bond energy depends on the value of bond length. This fact was used in semiempirical models of quantum chemistry to estimate the value of resonance integral [13]. Recently the empirical model of estimating bond energy from bond length was presented for the systems built up of CC bonds [14]. Pauling proposed [15] a fractional bond number, n, defined as ... 

Was this youT answer Bond energy depends on the types of atoms bond-Ing.The H—H single bond,for example, has a bond energy of 436 kilojoules per mole, but the H — 0 si ngle bond has a bond energy of 464 kilojoules per mole. All covalent single bonds do not have the same bond energy. 

It is well-known from elementary textbooks on organic chemistry that bond energy depends on... 

Summing up, remote substitution (2003EJOC2577) influences the H-bond energy depending on two separate factors the electron-donating/electron-withdrawing power of the substituent and its location. Such chemical modification of nucleobases can be used to control the stability of unnatural base pairs. 

The bond energy depends to some extent on the molecule in which the bond is found. For example, the N—F bond energies in NF , NF2, and NF are somewhat diflFerent ... 

Side groups are cleaved preferably when the bond energy between the C atoms in the backbone and the side group is weaker than that of the C-C bonds in the backbone, see Table 1.7. Bond energy depends not only on the atoms bound by the valence bonds, but also on molecular constitution, i.e., on the chemical environment of the bond [20]. 

Experimental data obtained on single crystals for the three low-index faces of Pd, Ni, and Fe are shown in Table 1 of Chapter 2. It is deduced that the initial heat of adsorption and adsorption bond energy depend slightly on the nature of the metal and the surface orientation. 

Based on the bond dissociation energy data for the simple alkanes, we conclude that the C—H bond energy depends on whether the carbon atom is primary, secondary, or tertiary and not on the particular alkane in which it is found. The bond dissociation energy reflects the stabilities of the radical products, which increase in the same order as carbocations. 

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