Theoretical study on the Rydberg states of NeH: Ab initio quantum defect and complex coordinate calculations

نویسندگان

  • Ioannis D. Petsalakis
  • Giannoula Theodorakopoulos
  • Yan Li
  • Gerhard Hirsch
  • Robert J. Buenker
چکیده

Ab initio calculations have been carried out on the potential energy curves of the Rydberg states of NeH up to 3d . Quantum defect functions have been calculated from the ab initio potentials and potential energy curves and vibrational levels for higher n (s ,p ,d) Rydberg states have been generated. The interaction of the 2p B P state with the 2s and 2p , A S and C S states and their predissociation by X S has been treated by multi-state complex coordinate scaling calculations for both NeH and NeD. The results are consistent with previous 232 calculations on the predissociation of the A S and C S states. Finally, a calculation of the interaction between the P , S, and D 3d states in NeH and NeD shows appreciable mixing between the states at high values of the rotational quantum number. © 1998 American Institute of Physics. @S0021-9606~98!02518-5#

برای دانلود 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

Theoretical ab initio study of the electronic states of KrH and KrH¿: Quantum defect and complex coordinate calculations on the Rydberg states of KrH

Potential energy curves have been calculated for the ground and excited electronic states of KrH and the cation KrH by ab initio configuration interaction calculations using effective core potentials for Kr. Quantum defect functions have been determined from the ab initio potentials of the low-lying Rydberg states of KrH and potential energy curves have been generated for higher n (s ,p ,d) Ryd...

متن کامل

The Rydberg States of Trans-1,3,5hexatriene from Ab Knltio and Configuration Interaction Calcueations*

Self-consistent ab initio and configuration interaction (CI) calculations are presented for the Rydberg states of the rrans-1,3,5-hexatriene molecule. Seven Rydberg series were identified. four optically allowed (ns, ndrz. ndi,-) and three optically forbidden (np., npp np,). These present results plus previous calculations on the valence states are used to assign the transitions observed in the...

متن کامل

A conceptual framework chemistry of Hydrated Cations: Part I. Preliminary Ab Initio and QTAIM calculations on [Li(H20)nr (n=1,2,3).

Ion molecules with general chemical formula as [Li(H2O)] (n=1,2,3), have been chosen as model species toinvestigate the chemical properties of hydrated lithium cations. The RHF(SCVS)/UGBS level of calculationhas been used for obtaining equilibrium geometries and Rho(r) functions (electron density distributions). By theaid of fundamental physical theorems implemented in Quantum Theory of Atoms i...

متن کامل

Ab Initio Quantum Chemical Studies of 15N and 13C NMR Shielding Tensors in Serine and Complexes of Serine- nH2O: Investigation on Strength of the CαH…O Hydrogen bonding in the Amino Acid Residue.

In this paper, the hydrogen bonding (HB) effects on the NMR chemical shifts of selected atoms in serineand serine-nH2O complexes (from one to ten water molecules) have been investigated with quantummechanical calculations of the 15N and 13C tensors. Interaction with water molecules causes importantchanges in geometry and electronic structure of serine.For the compound studied, the most importan...

متن کامل

Spectrum of the autoionizing triplet gerade Rydberg states of H2 and its analysis using multichannel quantum-defect theory.

A new spectrum of the autoionizing triplet states of gerade symmetry of H2 has been recorded from the υ″ = 1–4, N″ = 1–3 rovibrational levels of the metastable c 3Π(u)– state in a supersonic beam. The spectrum consists of overlapping ns and nd Rydberg series with n in the range between 4 and 45 converging to the υ+ = 1–4, N+ = 0–5 levels of the X+ 2Σ(g)+ ground state of H2+. Numerous perturbati...

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

برای دانلود 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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1998