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Journals / Turkish Journal of Chemistry / 2013 / Cilt: 37 - Sayı: 1

A new method for calculating the vibration-rotation-tunneling spectra of molecular clusters and its application to the water dimer

Mahir E. OCAK
Pages
66–90
Publication Date
2013-01-01
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results are encouraging for application to bigger clusters.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:A new method is developed for calculating the vibration-rotation-tunneling spectra of molecular clusters consisting of rigid monomers.
📊
Key Findings & Data:The method is applied to the water dimer by using the SAPT-5st potential surface.
💡
Conclusion & Impact:The results are encouraging for application to bigger clusters.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Key words: Molecular clusters · theoretical spectroscopy · sequential symmetry adaptation

Abstract

A new method is developed for calculating the vibration-rotation-tunneling spectra of molecular clusters consisting of rigid monomers. The method is based on generation of optimized bases for each monomer. First, a sequential symmetry adaptation procedure is developed for relating the symmetries of monomer basis functions with the symmetries of the eigenstates of the cluster. Then this symmetry adaptation procedure is used in the generation of optimized bases and combining them for finding the eigenstates. Symmetry adaptation problems related to the generation of optimized bases are identified and solutions are suggested. The method is applied to the water dimer by using the SAPT-5st potential surface. The results are encouraging for application to bigger clusters.

Özet

A new method is developed for calculating the vibration-rotation-tunneling spectra of molecular clusters consisting of rigid monomers. The method is based on generation of optimized bases for each monomer. First, a sequential symmetry adaptation procedure is developed for relating the symmetries of monomer basis functions with the symmetries of the eigenstates of the cluster. Then this symmetry adaptation procedure is used in the generation of optimized bases and combining them for finding the eigenstates. Symmetry adaptation problems related to the generation of optimized bases are identified and solutions are suggested. The method is applied to the water dimer by using the SAPT-5st potential surface. The results are encouraging for application to bigger clusters.

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Cite This Article

OCAK, M. E. (2013). A new method for calculating the vibration-rotation-tunneling spectra of molecular clusters and its application to the water dimer. Turkish Journal of Chemistry, Cilt: 37 - Sayı: 1, 66–90. https://ajindex.com/articles/184801

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