Direct observation of the conformational transitions of single pyridine molecules on a Ag(110) surface induced by long-range repulsive intermolecular interactions

2017 ◽  
Vol 146 (1) ◽  
pp. 014706 ◽  
Author(s):  
Insup Lee ◽  
Seungbae Son ◽  
Taeho Shin ◽  
Jae R. Hahn
Keyword(s):  
Intermolecular Interactions ◽  
Long Range ◽  
Direct Observation ◽  
Conformational Transitions

Tris(biimidazolato)chromium(III) as a building block for hydrogen-bonded supramolecular assemblies

2006 ◽  
Vol 84 (7) ◽  
pp. 949-959 ◽  
Author(s):  
Letitia M Gruia ◽  
Fernande D Rochon ◽  
André L Beauchamp
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Porous Material ◽  
Intermolecular Interactions ◽  
Long Range ◽  
Building Block ◽  
Benzene Molecule ◽  
Methanol Solution ◽  
Solvent Molecules ◽  
Free Material

The trischelate [Cr(H2biim)3](NO3)3 complex of 2,2′-biimidazole (H2biim) was obtained by reacting CrCl3·3THF with [Ag(H2biim)](NO3) in methanol. In the solvent-free material, each ligand forms two N-H···O bonds to a nitrate ion and generates locally neutral [Cr(H2biim)3](NO3)3 units. A methanol solvate was also obtained in which intermolecular interactions involve optimal use of the hydrogen-bonding ability of the [Cr(H2biim)3]3+ cations, NO3– anions, and methanol molecules. In both cases, there is no long-range regular organization of the complex units. Deprotonation of [Cr(H2biim)3](NO3)3 with NaOCH3 yielded neutral Cr(Hbiim)3. Its powder pattern is similar to that of Ru(Hbiim)3, suggesting that it also consists of mutually perpendicular interlocked honeycomb sheets. Recrystallization by slow diffusion of diisopropyl ether into a methanol solution yielded a porous material of composition Cr(Hbiim)3·2.6C6H14O in which superposed honeycomb sheets create infinite channels (~13 Å diameter) filled with disordered solvent molecules. A totally different structure is adopted by the solvate Cr(Hbiim)3·C6H6·2H2O, where the benzene molecule is encapsulated in a cavity created by five complex molecules.Key words: chromium, biimidazole, supramolecular, crystal structure, hydrogen bonding.

The role of long-range intermolecular interactions in discovery of new drugs

2011 ◽  
Vol 6 (12) ◽  
pp. 1263-1270 ◽  
Author(s):  
Nevena Veljkovic ◽  
Sanja Glisic ◽  
Vladimir Perovic ◽  
Veljko Veljkovic
Keyword(s):  
Intermolecular Interactions ◽  
Long Range ◽  
New Drugs

Direct observation of intermolecular interactions mediated by hydrogen bonding

2014 ◽  
Vol 141 (3) ◽  
pp. 034502 ◽  
Author(s):  
Luigi De Marco ◽  
Martin Thämer ◽  
Mike Reppert ◽  
Andrei Tokmakoff
Keyword(s):  
Hydrogen Bonding ◽  
Intermolecular Interactions ◽  
Direct Observation

scholarly journals The Key Role of Mendeleev's Forces In Intermolecular Interactions

2021 ◽  
Author(s):  
Yuriy Anatolievich Neruchev ◽  
Vadim Igorevich Korotkovskii ◽  
Michail Feliksovich Bolotnikov
Keyword(s):  
Intermolecular Interactions ◽  
Long Range ◽  
Thermophysical Properties ◽  
Liquid Hydrocarbons ◽  
Correct Description

Abstract In this paper, it is shown that a physically correct description of the thermophysical properties of liquid hydrocarbons is possible only when non-covalent long-range bond forces are taken into account

Direct Observation of Long-Range Assisted Formation of Ag Clusters onSi(111)7×7

2005 ◽  
Vol 95 (14) ◽  
Author(s):  
Ivan Ošt’ádal ◽  
Pavel Kocán ◽  
Pavel Sobotík ◽  
Jan Pudl
Keyword(s):  
Long Range ◽  
Direct Observation ◽  
Ag Clusters

Direct observation of long-range heteronuclear splittings in proton 2D J spectra

1988 ◽  
Vol 78 (2) ◽  
pp. 376-381 ◽  
Author(s):  
T.K Pratum ◽  
P.K Hammen ◽  
N.H Andersen
Keyword(s):  
Long Range ◽  
Direct Observation
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