Structure and C⋯N tetrel-bonding of the isopropylamine–CO2 complex studied by microwave spectroscopy and theoretical calculations

2020 ◽  
Vol 22 (16) ◽  
pp. 8467-8475 ◽  
Author(s):  
Tao Lu ◽  
Jiaqi Zhang ◽  
Qian Gou ◽  
Gang Feng
Keyword(s):  
Hydrogen Bonds ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Theoretical Calculations ◽  
Microwave Spectroscopy ◽  
Aliphatic Amines ◽  
Rotational Spectroscopy ◽  
Tetrel Bond

The structural and energetic features of C⋯N tetrel bond and C–H⋯O hydrogen bonds linking CO2 and aliphatic amines were characterized with rotational spectroscopy and quantum chemical calculations.

Competitive tetrel bond and hydrogen bond in benzaldehyde-CO2: Characterization by rotational spectroscopy

2021 ◽  
Author(s):  
Hao Wang ◽  
Xiujuan Wang ◽  
Xiao Tian ◽  
Wanying Cheng ◽  
Yang Zheng ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Fourier Transform ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Microwave Spectroscopy ◽  
Rotational Spectroscopy ◽  
Rotational Spectrum ◽  
Pulsed Jet ◽  
Tetrel Bond ◽  
Fourier Transform Microwave Spectroscopy

The rotational spectrum of the 1:1 benzaldehyde-CO2 complex has been investigated by pulsed-jet Fourier transform microwave spectroscopy complemented with quantum chemical calculations. Two isomers, both characterized by one C···O tetrel...

scholarly journals Structural and Conformational Properties of 1,2-Difluoropropane as Studied by Microwave Spectroscopy and Quantum Chemical Calculations.

1998 ◽  
Vol 52 ◽  
pp. 296-304 ◽  
Author(s):  
K.-M. Marstokk ◽  
Harald Møllendal ◽  
A. Kjekshus ◽  
Lev V. Vilkov ◽  
Reijo Sillanpää ◽  
...  
Keyword(s):  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Microwave Spectroscopy ◽  
Conformational Properties

The Conformational Landscape, Internal Rotation, and Structure of 1,3,5-Trisilapentane using Broadband Rotational Spectroscopy and Quantum Chemical Calculations

2020 ◽  
Vol 124 (19) ◽  
pp. 3825-3835 ◽  
Author(s):  
Atef Jabri ◽  
Frank E. Marshall ◽  
William Raymond Neal Tonks ◽  
Reid E. Brenner ◽  
David J. Gillcrist ◽  
...  
Keyword(s):  
Internal Rotation ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Rotational Spectroscopy ◽  
Conformational Landscape

Binding of metal ions and water molecules to nucleic acid bases: the influence of water molecule coordination to a metal ion on water–nucleic acid base hydrogen bonds

2019 ◽  
Vol 75 (3) ◽  
pp. 301-309
Author(s):  
Jelena M. Andrić ◽  
Ivana M. Stanković ◽  
Snežana D. Zarić
Keyword(s):  
Nucleic Acid ◽  
Hydrogen Bonds ◽  
Nucleic Acids ◽  
Metal Ions ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Metal Ion ◽  
Water Molecules ◽  
Nucleic Acid Bases ◽  
Coordinated Water

The interactions of nucleic acid bases with non-coordinated and coordinated water molecules were studied by analyzing data in the Protein Data Bank (PDB) and by quantum chemical calculations. The analysis of the data in the crystal structures from the PDB indicates that hydrogen bonds involving oxygen or nitrogen atoms of nucleic acid bases and water molecules are shorter when water is bonded to a metal ion. These results are in agreement with the quantum chemical calculations on geometries and interaction energies of hydrogen bonds; the calculations on model systems show that hydrogen bonds of nucleic acid bases with water bonded to a metal ion are stronger than hydrogen bonds with non-coordinated water. These calculated values are similar to the strength of hydrogen bonds between nucleic acid bases. The results presented in this paper may be relevant to understand the role of water molecules and metal ions in the process of replication and stabilization of nucleic acids and also to understand the possible toxicity of metal ion interactions with nucleic acids.

Ab initio conformational analysis of 1,2,3,4-tetrahydroquinoline and the high-resolution rotational spectrum of its lowest energy conformer

2018 ◽  
Vol 20 (21) ◽  
pp. 14664-14670 ◽  
Author(s):  
Kateřina Luková ◽  
Radim Nesvadba ◽  
Tereza Uhlíková ◽  
Daniel A. Obenchain ◽  
Dennis Wachsmuth ◽  
...  
Keyword(s):  
High Resolution ◽  
Conformational Analysis ◽  
Ab Initio ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Rotational Spectroscopy ◽  
Rotational Spectrum ◽  
Molecular Physics ◽  
Insight Into

The tight combination of rotational spectroscopy and quantum-chemical calculations provides an insight into the molecular physics of the lowest energy conformer of 1,2,3,4-tetrahydroquinoline.

Sign in / Sign up

Export Citation Format

Share Document