Correlated wave functions for the ground and some excited states of the iron atom.

نویسندگان

  • E Buendía
  • F J Gálvez
  • A Sarsa
چکیده

We study the states arising from the [Ar]4s(2)3d6 and [Ar]4s(1)3d7 configurations of iron atom with explicitly correlated wave functions. The variational wave function is the product of the Jastrow correlation factor times a model function obtained within the parametrized optimized effective potential framework. A systematic analysis of the dependence of both the effective potential and the correlation factor on the configuration and on the term is carried out. The ground state of both, the cation, Fe+, and anion, Fe-, are calculated with correlated wave functions and the ionization potential and the electron affinity are obtained.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Microscopic Parameters in the Excited State of Toluene and Some of Its Haloderavatives

The Ultraviolet-visible (UV) spectra of toluene, ortho-bromo and para-bromo toluene in different solvents have been studied. The electric dipole moments and polarizabilities in the molecular excited electronic states were determined. It was found that the electric dipole moments for the excited states (µ*) and the ground states (µ) of these compounds are equal, and the change in dipole moment i...

متن کامل

Ja n 20 06 Calculation of ground - and excited - state energies of confined helium atom

We calculate the energies of ground and three low lying excited states of confined helium atom centered in an impenetrable spherical box. We perform the calculation by employing variational method with two-parameter variational forms for the correlated two-particle wave function. With just two variational parameters we get quite accurate results for both ground and excited state energies. PACS ...

متن کامل

محاسبه سطح مقطع دیفرانسیلی و کل تهییج تک الکترونی هلیوم در برخورد با پروتون در انرژی‌های میانی و بالا به روش فرمول‌بندی سه جسمی

 A three-body model is devised to study differential and total cross sections for the excitation of helium atom under impact of energetic protons. The actual process is a four body one but in the present model the process is simplified into a three-body one. In this model, an electron of helium atom is assumed to be inactive and only one electron of the atom is active. Therefore, the active ele...

متن کامل

Correlated Atomic Pair Functions by the - Method . I . Ground State 1 J S and Lowest Excited States

Some low n 1 S and n 3 S states of the helium atom are computed with the aid of the e~ method which formulates the electronic wave function of the 2 electrons as = e~F, where q = Z(r\ + r2) \ r \ 2 and here Z = 2. Both the differential and the integral equation for F contain a pseudopotential V instead of the true potential V that contrary to V is finite. For the ground state, F = 1 yields near...

متن کامل

Excited states of beryllium atom from explicitly correlated wave functions

A study of the first excited states of beryllium atom starting from explicitly correlated wave functions is carried out. Several properties are obtained and discussed focusing on the analysis of the Hund’s rules in terms of the single-particle and electron pair intracule and extracule densities. A systematic study of the differences on the electronic distributions of the singlet and triplet sta...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • The Journal of chemical physics

دوره 124 15  شماره 

صفحات  -

تاریخ انتشار 2006