Tetrel bonds and conformational equilibria in the formamide–CO2 complex: a rotational study

Literature Information

Publication Date 2019-02-27
DOI 10.1039/C9CP00055K
Impact Factor 3.676
Authors

Shuang Gao, Daniel A. Obenchain, Juncheng Lei, Gang Feng, Sven Herbers, Qian Gou, Jens-Uwe Grabow


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Abstract

The rotational spectra of the complex formamide–CO2 have been measured and assigned by pulsed jet Fourier transform microwave spectroscopy. Two isomers of the complex have been detected where a C⋯O tetrel bond dominates the interactions, and either N–H⋯O or C–H⋯O forms a secondary linkage. Bader's quantum theory of atoms in molecules and Johnson's non-covalent interaction analyses were applied to unveil the intermolecular binding sites and energetic properties in the complex. Relative intensity measurements on a set of μa-type transitions allowed estimating the relative population of the observed two isomers as NI/NII ≈ 18/1.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
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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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