scholarly journals Hydrogen bond mediated stabilization of the salt bridge structure for the glycine dimer anion

2015 ◽  
Vol 17 (45) ◽  
pp. 30642-30647 ◽  
Author(s):  
S. Heiles ◽  
Richard J. Cooper ◽  
Giel Berden ◽  
Jos Oomens ◽  
Evan R. Williams
Keyword(s):  
Hydrogen Bond ◽  
Salt Bridge ◽  
Solvent Free ◽  
Bridge Structure ◽  
Infrared Multiple Photon Dissociation ◽  
Free Environment

The formation of a salt bridge in deprotonated glycine dimer anions in a solvent-free environment is investigated using both infrared multiple photon dissociation spectroscopy between 600 and 1800 cm−1 and theory.

Solvent free, environment benign synthesis of 1,4-dihydropyridines and polyhydroquinolines by using heterogeneous Zn/MCM-41 catalyst

2021 ◽  
Author(s):  
Shankar D. Dhengale ◽  
Vaibhav M. Naik ◽  
Govind B. Kolekar ◽  
Chandrashekhar V. Rode ◽  
Prashant V. Anbhule
Keyword(s):  
Solvent Free ◽  
Benign Synthesis ◽  
Free Environment ◽  
Mcm 41

scholarly journals A salt-bridge structure in solution revealed by 2D-IR spectroscopy

2014 ◽  
Vol 16 (30) ◽  
pp. 15784-15786 ◽  
Author(s):  
Adriana Huerta-Viga ◽  
Sérgio R. Domingos ◽  
Saeed Amirjalayer ◽  
Sander Woutersen
Keyword(s):  
Ir Spectroscopy ◽  
Spatial Structure ◽  
Ir Spectrum ◽  
Salt Bridge ◽  
Bridge Structure ◽  
2D Ir ◽  
Structure In Solution

We determine the spatial structure of a guanidinium:acetate salt bridge in solution from cross peaks in its 2D-IR spectrum.

Catalyst- and Solvent-Free Hydrophosphorylation of Ketones with Secondary Phosphine Oxides: Green Synthesis of Tertiary α-Hydroxyphosphine Oxides

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 ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Green Chemistry ◽  
Green Synthesis ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Solvent Free ◽  
Secondary Phosphine ◽  
Phosphine Oxides ◽  
Intramolecular Hydrogen ◽  
Solvent Free Reaction

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.

Sensing the anomeric effect in a solvent-free environment

Nature ◽  
2011 ◽  
Vol 469 (7328) ◽  
pp. 76-79 ◽  
Author(s):  
Emilio J. Cocinero ◽  
Pierre Carcabal ◽  
Timothy D. Vaden ◽  
John P. Simons ◽  
Benjamin G. Davis
Keyword(s):  
Solvent Free ◽  
Anomeric Effect ◽  
Free Environment

R2PI Study of intermolecular hydrogen bond in solvent-free chiral complexes

Chirality ◽  
2001 ◽  
Vol 13 (10) ◽  
pp. 727-730 ◽  
Author(s):  
A. Giardini Guidoni ◽  
S. Piccirillo ◽  
D. Scuderi ◽  
M. Satta ◽  
T.M. Di Palma ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Intermolecular Hydrogen Bond ◽  
Solvent Free ◽  
Chiral Complexes
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