New organic noble gas molecules: energetics, stability and potential energy surfaces of HCCXeCCH and HCCKrCCH

Literature Information

Publication Date 2006-08-14
DOI 10.1039/B606478G
Impact Factor 3.676
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Abstract

The diacetylides of Xe and Kr, HCCXeCCH and HCCKrCCH, are predicted to exist as metastable, chemically-bound compounds. The electronic structure, properties of the potential energy surfaces and decomposition paths are computed and analyzed. MP2, MCSCF and CASPT2 ab initio methods are used, as appropriate for each of the properties studied. Using transition state theory and the computed barrier for decomposition, the lifetime of HCCXeCCH is calculated as a function of temperature. The molecule is predicted to be stable well above the cryogenic range, with a lifetime of 24 h at 200 K. The implications for organic chemistry of the noble gases are discussed.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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