Predictive Models for the Free Energy of Hydrogen Bonded Complexes with Single and Cooperative Hydrogen Bonds

2016 ◽  
Vol 35 (11-12) ◽  
pp. 629-638 ◽  
Author(s):  
Marta Glavatskikh ◽  
Timur Madzhidov ◽  
Vitaly Solov'ev ◽  
Gilles Marcou ◽  
Dragos Horvath ◽  
...  
Keyword(s):  
Free Energy ◽  
Hydrogen Bonds ◽  
Predictive Models ◽  
Bonded Complexes ◽  
Hydrogen Bonded

scholarly journals Soft experimental constraints for soft interactions: a spectroscopic benchmark data set for weak and strong hydrogen bonds

2019 ◽  
Vol 21 (35) ◽  
pp. 18799-18810 ◽  
Author(s):  
Sönke Oswald ◽  
Martin A. Suhm
Keyword(s):  
Experimental Data ◽  
Hydrogen Bonds ◽  
Quantum Chemistry ◽  
Harmonic Approximation ◽  
Data Set ◽  
Benchmark Data ◽  
Small Set ◽  
Soft Interactions ◽  
Bonded Complexes ◽  
Hydrogen Bonded

Experimental data for hydrogen-bonded complexes between a small set of test molecules are converted into a benchmark set for quantum chemistry predictions in the convenient harmonic approximation.

1,2-Dihydro-1,3,2-diazaborinine tautomer as an electron-pair donor in hydrogen-bonded complexes

2021 ◽  
Author(s):  
Ibon Alkorta ◽  
Jose Elguero ◽  
Janet E Del Bene
Keyword(s):  
Hydrogen Bonds ◽  
Ab Initio ◽  
Electron Pair ◽  
Binding Energies ◽  
Coupling Constants ◽  
Spin Coupling ◽  
Spin Coupling Constants ◽  
Spin Spin Coupling ◽  
Bonded Complexes ◽  
Hydrogen Bonded

Ab initio MP2/aug’-cc-pVTZ calculations have been carried out to investigate 1,2-dihydro-1,3,2-diazaborinine:HX complexes for HX = H+, HF, HCl, H2O, HCN, NH3, HCP, and HCCH. Most complexes are stabilized by linear, traditional hydrogen bonds except for those with H2O and NH3 which have bridging structures and nonlinear hydrogen bonds. H-atom transfer from N to B can occur in complexes with HF and HCl, with formation of a traditional F-H…N and a proton-shared Cl…H…N bond. The binding energies of the uncharged complexes range from 25 to 88 kJ.mol–1. Spin-spin coupling constants have been used to characterize these hydrogen-bonded complexes. Des calculs ab initio MP2/aug'-cc-pVTZ ont été effectués pour étudier les complexes 1,2-dihydro-1,3,2-diazaborinine:HX pour HX = H+, HF, HCl, H2O, HCN, NH3, HCP et HCCH. La plupart des complexes sont stabilisés par des liaisons hydrogène traditionnelles, linéaires, à l'exception de celles avec H2O et NH3 qui ont des structures pont et des liaisons hydrogène non linéaires. Le transfert de l'atome d'hydrogène de N à B peut se produire dans des complexes avec HF et HCl, avec formation d'une liaison F-H···N traditionnelle et d'une liaison Cl···H···N avec un proton comparti. Les énergies de liaison des complexes non chargés vont de 25 à 88 kJ·mol–1. Des constantes de couplage spin-spin ont été utilisées pour caractériser ces complexes à liaison l'hydrogène.

scholarly journals Charged versus Neutral Hydrogen-Bonded Complexes: Is There a Difference in the Nature of the Hydrogen Bonds?

2016 ◽  
Vol 22 (27) ◽  
pp. 9226-9234 ◽  
Author(s):  
Ibon Alkorta ◽  
Ignasi Mata ◽  
Elies Molins ◽  
Enrique Espinosa
Keyword(s):  
Hydrogen Bonds ◽  
Neutral Hydrogen ◽  
Bonded Complexes ◽  
Hydrogen Bonded

Theoretical study of hydrogen bonding interactions in substituted nitroxide radicals

2021 ◽  
Author(s):  
Thufail M. Ismail ◽  
Neetha Mohan ◽  
P. K. Sajith
Keyword(s):  
Hydrogen Bonding ◽  
Interaction Energy ◽  
Electrostatic Potential ◽  
Molecular Electrostatic Potential ◽  
Theoretical Study ◽  
Nitroxide Radicals ◽  
Hydrogen Bonding Interactions ◽  
Bonded Complexes ◽  
Hydrogen Bonded

Interaction energy (Eint) of hydrogen bonded complexes of nitroxide radicals can be assessed in terms of the deepest minimum of molecular electrostatic potential (Vmin).

Hydrogen‐Bonded Complexes of Star Polymers

2021 ◽  
pp. 2100097
Author(s):  
Aliaksei Aliakseyeu ◽  
Elena E. Dormidontova ◽  
Svetlana A. Sukhishvili
Keyword(s):  
Star Polymers ◽  
Bonded Complexes ◽  
Hydrogen Bonded

scholarly journals Taming nitroformate through encapsulation with nitrogen-rich hydrogen-bonded organic frameworks

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jichuan Zhang ◽  
Yongan Feng ◽  
Richard J. Staples ◽  
Jiaheng Zhang ◽  
Jean’ne M. Shreeve
Keyword(s):  
Thermal Stability ◽  
Hydrogen Bonds ◽  
Self Assembly ◽  
Energetic Materials ◽  
Decomposition Temperature ◽  
High Oxygen Content ◽  
The Poor ◽  
Simple Preparation ◽  
First Time ◽  
Hydrogen Bonded

AbstractOwing to its simple preparation and high oxygen content, nitroformate [−C(NO2)3, NF] is an extremely attractive oxidant component for propellants and explosives. However, the poor thermostability of NF-based derivatives has been an unconquerable barrier for more than 150 years, thus hindering its application. In this study, the first example of a nitrogen-rich hydrogen-bonded organic framework (HOF-NF) is designed and constructed through self-assembly in energetic materials, in which NF anions are trapped in pores of the resulting framework via the dual force of ionic and hydrogen bonds from the strengthened framework. These factors lead to the decomposition temperature of the resulting HOF-NF moiety being 200 °C, which exceeds the challenge of thermal stability over 180 °C for the first time among NF-based compounds. A large number of NF-based compounds with high stabilities and excellent properties can be designed and synthesized on the basis of this work.

Relevance of hydrogen bonded associates on the transport properties and nanoscale dynamics of liquid and supercooled 2-propanol

2021 ◽  
Author(s):  
Yanqin Zhai ◽  
Peng Luo ◽  
Michihiro Nagao ◽  
Kenji Nakajima ◽  
Tatsuya Kikuchi ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Transport Properties ◽  
Structural Relaxation ◽  
Model System ◽  
Mesoscale Structures ◽  
Nanoscale Dynamics ◽  
Hydrogen Bonded

2-propanol was investigated, in both the liquid and supercooled states, as a model system to study how hydrogen bonds affect the structural relaxation and the dynamics of mesoscale structures, of...

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