Hydrogen Bond Vibrations of Substituted Phenols with Trimethylamine N-Oxide. Comparison of Quantum Chemical Calculations with Experimental Results

1995 ◽  
Vol 99 (32) ◽  
pp. 12158-12163 ◽  
Author(s):  
Arno Rabold ◽  
Georg Zundel
Synthesis ◽  
2020 ◽  
Vol 52 (15) ◽  
pp. 2224-2232
Author(s):  
Boris A. Trofimov ◽  
Nina K. Gusarova ◽  
Nina I. Ivanova ◽  
Kseniya O. Khrapova ◽  
Pavel A. Volkov ◽  
...  

Tertiary α-hydroxyphosphine oxides have been synthesized via the catalyst- and solvent-free reaction between available secondary phosphine oxides and aliphatic, aromatic and heteroaromatic ketones at 20–62 °C in near to 96–98% yield. The developed method meets the requirements of green chemistry and the PASE (pot, atom, step economy) paradigm. According to quantum-chemical calculations at the B3LYP/6-311++G(d,p) level, the synthesized hydroxyphosphine oxides feature a weak (≈3 kcal·mol–1) O−H···O=P intramolecular hydrogen bond.


2015 ◽  
Vol 17 (37) ◽  
pp. 24282-24293 ◽  
Author(s):  
V. V. Varfolomeeva ◽  
A. V. Terentev

The present paper discusses the contemporary state of the studies of the weak hydrogen bond contribution to the adsorption of flexible molecules. We formulated the problems which can be solved today only using the NCI method and quantum chemical calculations.


2019 ◽  
Vol 123 (27) ◽  
pp. 5730-5741
Author(s):  
Daniel Beckett ◽  
Tarick J. El-Baba ◽  
Kevin Gilbert ◽  
David E. Clemmer ◽  
Krishnan Raghavachari

Author(s):  
Hao Wang ◽  
Xiujuan Wang ◽  
Xiao Tian ◽  
Wanying Cheng ◽  
Yang Zheng ◽  
...  

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...


2005 ◽  
Vol 49 (1) ◽  
pp. 255-256 ◽  
Author(s):  
Keitaro Yoshimoto ◽  
Seiichi Nishizawa ◽  
Hiroyuki Koshino ◽  
Yusuke Sato ◽  
Norio Teramae ◽  
...  

1998 ◽  
Vol 54 (6) ◽  
pp. 866-871 ◽  
Author(s):  
J. K. Maurin

The statistical analysis of hydrogen-bond interactions formed by oximes and carboxylic acids has been performed. Ab initio quantum-chemical calculations have been used to rationalize the observed preference for the oxime–carboxyl interaction compared with homologous binding (carboxyl–carboxyl and oxime–oxime). The crystal packing observed in the structure of pyruvic acid oxime (hydroxyiminopyruvic acid) has been explained as the consequence of a combination of the energetically optimal structure of the isolated molecule and the optimal interaction of monomers forming a dimer.


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