ChemInform Abstract: Organomercury Compounds. Part 33. The X-Ray Crystal Structures of Hg(C6F4X-p)2 (X: NH2, OMe, or Me) - Two Examples of Supramolecular Lewis Acid/Base Complexes.

ChemInform ◽  
2010 ◽  
Vol 31 (16) ◽  
pp. no-no
Author(s):  
Glen B. Deacon ◽  
Craig M. Forsyth ◽  
Dominique M. M. Freckmann ◽  
Gerd Meyer ◽  
Dirk Stellfeldt
Keyword(s):  
Crystal Structures ◽  
Lewis Acid ◽  
Acid Base ◽  
X Ray ◽  
Organomercury Compounds

The X-ray Crystal Structures of Hg(C6F4X-p)2 (X = NH2, OMe, or Me) - Two Examples of Supramolecular Lewis Acid/Base Complexes

2000 ◽  
Vol 626 (2) ◽  
pp. 540-546 ◽  
Author(s):  
Glen B. Deacon ◽  
Craig M. Forsyth ◽  
Dominique M. M. Freckmann ◽  
Dominique M. M. Freckmann ◽  
Gerd Meyer ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Lewis Acid ◽  
Acid Base ◽  
X Ray

An Intramolecular Boron Nitrogen Lewis Acid Base Pair on a Rigid Naphthyl Backbone

2012 ◽  
Vol 67 (6) ◽  
pp. 589-593 ◽  
Author(s):  
Daniel Winkelhaus ◽  
Beate Neumann ◽  
Norbert W. Mitzel
Keyword(s):  
Nmr Spectroscopy ◽  
Single Crystal ◽  
Lewis Acid ◽  
Elemental Analysis ◽  
Base Pair ◽  
Ring System ◽  
X Ray Diffraction ◽  
Acid Base ◽  
X Ray ◽  
Boron Nitrogen

The reaction of (C6F5)2BCl with 8-lithio-N,N-dimethyl-1-naphthylamine (1) afforded the fivemembered ring system 8-bis(pentafluorophenyl)boryl-N,N-dimethyl-1-naphthylamine (2) with an intramolecular dative B-N bond. The compound was characterised by elemental analysis, NMR spectroscopy and single-crystal X-ray diffraction.

Synthesis and Crystal Structures of [(iPr3P)2Cu(μ-ESiMe3)(InMe3)] (E = S, Se): Lewis Acid-Base Adducts with Chalcogen Atoms in Planar Coordination

2013 ◽  
Vol 2013 (27) ◽  
pp. 4727-4731 ◽  
Author(s):  
Ralf Biedermann ◽  
Oliver Kluge ◽  
Daniel Fuhrmann ◽  
Harald Krautscheid
Keyword(s):  
Crystal Structures ◽  
Lewis Acid ◽  
Acid Base

Synthesis and Lewis Acid Properties of (ReO3F)∞ and the X-ray Crystal Structures of (HF)2ReO3F·HF and [N(CH3)4]2-[{ReO3(μ-F)}3(μ3-O)]·CH3CN

2013 ◽  
Vol 52 (12) ◽  
pp. 6806-6819 ◽  
Author(s):  
Maria V. Ivanova ◽  
Tobias Köchner ◽  
Hélène P. A. Mercier ◽  
Gary J. Schrobilgen
Keyword(s):  
Crystal Structures ◽  
Lewis Acid ◽  
X Ray ◽  
Acid Properties

Lewis-Säure/Base Addukte von TiCl4 und Methylpyridinen / Lewis Acid/Base Adducts of TiCl4 and Methylpyridines

2000 ◽  
Vol 55 (9) ◽  
pp. 877-881 ◽  
Author(s):  
Karl Hensen ◽  
Alexander Lemke ◽  
Michael Bolte
Keyword(s):  
Molecular Structure ◽  
Lewis Acid ◽  
Equatorial Position ◽  
Acid Base ◽  
Nitrogen Base ◽  
X Ray ◽  
Nitrogen Bases ◽  
Distorted Trigonal Bipyramid ◽  
In Trans ◽  
Ray Methods

By the reaction of 2-methyl- and 2,6-dimethylpyridine the first neutral TiCl4L complexes (L = single bonded ligand) could be synthesized. The structures have been determined by single crystal X-ray methods. The best description of the molecular structure is a distorted trigonal bipyramid with the nitrogen base occupying an equatorial position. With 2,4-dimethylpyridine, a 1:2 adduct is formed, where the nitrogen bases are in trans-positions of a TiCl4N2-octahedron, as also confirmed by an X-ray analysis

Studies via X-ray analysis on intermolecular interactions and energy frameworks based on the effects of substituents of three 4-aryl-2-methyl-1H-imidazoles of different electronic nature and their in vitro antifungal evaluation

2018 ◽  
Vol 74 (11) ◽  
pp. 1447-1458 ◽  
Author(s):  
Mario A. Macías ◽  
Nerith-Rocio Elejalde ◽  
Estefanía Butassi ◽  
Susana Zacchino ◽  
Jaime Portilla
Keyword(s):  
Crystal Structure ◽  
Antifungal Activity ◽  
Crystal Structures ◽  
Intermolecular Interactions ◽  
Acid Base ◽  
Electronic Nature ◽  
Aryl Ring ◽  
X Ray ◽  
Base Properties

The crystal structures of 2-methyl-4-phenyl-1H-imidazole, C10H10N2, (3a), 4-(4-chlorophenyl)-2-methyl-1H-imidazole hemihydrate, C10H9ClN2·0.5H2O, (3b), and 4-(4-methoxyphenyl)-2-methyl-1H-imidazole, C11H12N2O, (3c), have been analyzed. It was found that the electron-donating/withdrawing tendency of the substituent groups in the aryl ring influence the acid–base properties of the 2-methylimidazole nucleus, changing the strength of the intermolecular N—H...N interactions. This behaviour not only influences the crystal structure but also seems to have an important effect on the antifungal activity. Considering the substituent groups, that is, H in (3a), Cl in (3b) and OMe in (3c), the formation of strong N—H...N connections has the probability (3a) > (3b) > (3c), while compound (3c) proves to be more active than (3a) and (3b) at all concentrations against C. neoformans.

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