A novel method for the calculation of bond stretching force constants of diatomic molecules

作者：Kaya Savas^*; Kaya Cemal; Obot I B; Islam Nazmul

来源：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2016, 154: 103-107.

DOI：10.1016/j.saa.2015.10.030

• Chemical hardness
• Bond length
• Bond force constant
• DFT
• A new molecular hardness equation

Chemical hardness is one of the chemical reactivity descriptors of chemical species and this concept has widely benefited from the development of Density Functional Theory (DFT). In the present report, chemical hardness values for approximately fifty diatomic molecules have been calculated using a new molecular hardness (eta(M)) equation derived by us in recent times. Then, correlation between force constant (k) and chemical hardness for the above mentioned diatomic molecules that situate hydrides, halides, oxides and sulfides among them has been investigated. Consequently, a relation that can be presented by a simple equation between chemical hardness with bond stretching force constants has,been found.

• 出版日期2016-2-5
• 单位中国石油大学（北京）