Estimation of some physical properties for tennessine and tennessine hydride (TsH)

Highlights: • Tennessine and TsH physical properties are estimated based on experimental data and some empirical equations. • For tennessine, the covalent radius and polarizability are estimated. • For TsH, the dipole moment and the bond energy, as well another parameters, are estimated. In the present work, experimental values of several physical properties for hydrogen halides (including At) are used to obtain, by extrapolation, values of physical properties for tennessine (element 117, Ts) and tennessine hydride (TsH). Using experimental data of Cl, Br, I and At halides, two empirical equations are obtained, allowed us to calculate the ionic and covalent contribution to the bond energy, respectively: E_ionic = [μ²h/d³]c²10⁻¹² and E_covalent = [−22.78P + 400.09] + ν(HX). Using both equations, as well some empirical trends in the Cl, Br, I and At halides, the values of some physical properties of Ts and TsH are estimated. The frequency energy of the TsH vibration, ν(TsH), value is calculated as 20.24 kJ mol⁻¹. For the same bond: μ = 0.24 D; bond distance = 196.76 pm; bond energy = 163.03 kJ mol⁻¹. The polarizability and covalent radius for Ts are estimated as 11.31/10⁻²⁴ cm³ and 159.76 pm, respectively.