A Study on Atomic Spectroscopic Term Symbols for Nonequivalent Electrons of (n-1) d 1 s 1 p 1 Configuration Using RussellSaunders Coupling Scheme

Abstract

Electronic and magnetic properties of the inorganic molecules and complexes can be understood very well by using the term symbols. Term symbols are a shorthand method used to describe the energy, angular momentum, and spin multiplicity of an atom / ion in any particular electronic state. The Russell-Saunders atomic term symbols provide the information about spectral and magnetic properties of an atom or ion. The atomic terms have been determined for nonequivalent electrons of(n-1)d 1 s 1 p 1 configuration using Russell-Saunders coupling scheme.The total number of microstates computed for the non-equivalent electrons of (n-1)d 1 s 1 p 1 configuration are found to be 120. Among the microstates, two types of atomic terms have been determined namely, quartet (3-types) and doublet (6-types). The ground state term found for this configuration is quartet 4 F with the lower energy state as 4 F 2 .

Theoretical analysis of 4f25d2 configuration of singly ionized praseodymium

“…The knowledge about spectral and magnetic properties of an atom or ion is provided by Russell-Saunders atomic term symbols. Such technique was employed to calculate atomic terms for non equivalent electrons (n−1) d 1 s 1 p 1 configuration for which 120 microstates were computed [24]. Russell Saunders coupling scheme was also used by Meena et al to calculate microstates and term values of nf 4 and nf 10 configurations which were found to be 1001 and 47 respectively [25].…”