Strong halogen bonding of 1,2-diiodoperfluoroethane and 1,6-diiodoperfluorohexane with halide anions revealed by UV-Vis, FT-IR, NMR spectroscopes and crystallography

2011 ◽  
Vol 13 (30) ◽  
pp. 13721 ◽  
Author(s):  
Qian Jin Shen ◽  
Wei Jun Jin
Keyword(s):  
Halogen Bonding ◽  
Halide Anions ◽  
Ft Ir

A Tridentate Halogen-Bonding Receptor for Tight Binding of Halide Anions

2010 ◽  
Vol 49 (9) ◽  
pp. 1674-1677 ◽  
Author(s):  
Mohammed G. Sarwar ◽  
Bojan Dragisic ◽  
Sandeep Sagoo ◽  
Mark S. Taylor
Keyword(s):  
Tight Binding ◽  
Halogen Bonding ◽  
Halide Anions

Halogen Bonding Interactions ofsym-Triiodotrifluorobenzene with Halide Anions: A Combined Structural and Theoretical Study

2008 ◽  
Vol 8 (7) ◽  
pp. 2241-2247 ◽  
Author(s):  
Sonia Triguero ◽  
Rosa Llusar ◽  
Victor Polo ◽  
Marc Fourmigué
Keyword(s):  
Theoretical Study ◽  
Halogen Bonding ◽  
Halide Anions

A Tridentate Halogen-Bonding Receptor for Tight Binding of Halide Anions

2010 ◽  
Vol 122 (9) ◽  
pp. 1718-1721 ◽  
Author(s):  
Mohammed G. Sarwar ◽  
Bojan Dragisic ◽  
Sandeep Sagoo ◽  
Mark S. Taylor
Keyword(s):  
Tight Binding ◽  
Halogen Bonding ◽  
Halide Anions

scholarly journals Intermolecular Interactions between Halogen‐Substituted p ‐Benzoquinones and Halide Anions: Anion‐π Complexes versus Halogen Bonding

ChemPlusChem ◽  
2020 ◽  
Vol 85 (3) ◽  
pp. 441-449 ◽  
Author(s):  
Almaz Jalilov ◽  
Spencer Deats ◽  
Muath Albukhari ◽  
Matthias Zeller ◽  
Sergiy V. Rosokha
Keyword(s):  
Intermolecular Interactions ◽  
Halogen Bonding ◽  
Halide Anions

From charge transfer to electron transfer in halogen-bonded complexes of electrophilic bromocarbons with halide anions

2015 ◽  
Vol 17 (7) ◽  
pp. 4989-4999 ◽  
Author(s):  
Sergiy V. Rosokha ◽  
Alfredo Traversa
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Halogen Bonding ◽  
Dramatic Decrease ◽  
Halide Anions ◽  
Inner Sphere ◽  
Bonded Complexes

Halogen bonding leads to a dramatic decrease of the barrier for (inner-sphere) electron transfer and halogen transfer between bromocarbons and iodide anions.

Preparation, characterization and luminescence-sensing properties of two ZnII MOFs with mixed 5-amino-2,4,6-tribromoisophthalic acid and bipyridyl-type ligands

2019 ◽  
Vol 75 (7) ◽  
pp. 859-871 ◽  
Author(s):  
Jie Xu ◽  
Kou-Lin Zhang
Keyword(s):  
Solid State ◽  
Second Harmonic ◽  
Three Dimensional ◽  
Halogen Bonding ◽  
Supramolecular Interactions ◽  
Supramolecular Network ◽  
X Ray Diffraction ◽  
Vis Spectroscopy ◽  
Metal Organic ◽  
Ft Ir

The bromo-substituted aromatic dicarboxylic acid 5-amino-2,4,6-tribromoisophthalic acid (H2ATBIP), in the presence of the N-donor flexible bipyridyl-type ligands 1,3-bis(pyridin-4-yl)propane (bpp) and N,N′-bis(pyridin-4-ylmethyl)oxalamide (4-bpme) and ZnII ions, was used as an O-donor ligand to assemble two novel luminescent metal–organic frameworks (MOFs), namely poly[[(μ-5-amino-2,4,6-tribromoisophthalato-κ2 O 1:O 3)[μ-1,3-bis(pyridin-4-yl)propane-κ2 N:N′]zinc(II)] dimethylformamide monosolvate], {[Zn(C8H2Br3NO4)(C13H14N2)]·C3H7NO} n , (1), and poly[[(μ-5-amino-2,4,6-tribromoisophthalato-κ2 O 1:O 3)diaqua[μ-N,N′-bis(pyridin-4-ylmethyl)oxalamide-κ2 N:N′]zinc(II)] monohydrate], {[Zn(C8H2Br3NO4)(C14H14N4O2)(H2O)2]·H2O} n , (2), using the solution evaporation method. Both (1) and (2) were characterized by FT–IR spectroscopy, elemental analysis (EA), solid-state diffuse-reflectance UV–Vis spectroscopy, and powder and single-crystal X-ray diffraction analysis. Complex (1) shows a two-dimensional (2D) corrugated layer simplified as a 2D (4,4) topological network. The supramolecular interactions (π–π stacking, hydrogen bonding and C—Br...Br halogen bonding) play significant roles in the formation of an extended three-dimensional (3D) supramolecular network of (1). Complex (2) crystallizes in the chiral space group P212121 and exhibits a novel 3D homochiral framework, showing a diamond-like topology with Schläfli symbol 66. The homochirality of (2) is further confirmed by the solid-state circular dichroism (CD) spectrum. The second harmonic generation (SHG) property of (2) was also investigated. The hydrogen and C—Br...Br/O halogen bonding further stabilize the framework of (2). The central ZnII ions in (1) and (2) show tetrahedral and octahedral coordination geometries, respectively. The coordinated and uncoordinated water molecules in (2) could be removed selectively upon heating. Most importantly, (1) and (2) show rapid and highly sensitive sensing for a large pool of nitroaromatic explosives (NAEs).

scholarly journals “Anti-electrostatic” halogen bonding in solution

2021 ◽  
Author(s):  
Cody Loy ◽  
Jana M Holthoff ◽  
Robert Weiss ◽  
Stefan Huber ◽  
Sergiy Rosokha
Keyword(s):  
Halogen Bonding ◽  
Spontaneous Formation ◽  
Halide Anions ◽  
First Time

Halogen-bonded (XB) complexes between halide anions and a cyclopropenylium-based anionic XB donor were characterized in solution for the first time. Spontaneous formation of such complexes confirms that halogen bonding is...

scholarly journals Halogen-bonding-induced diverse aggregation of 4,5-diiodo-1,2,3-triazolium salts with different anions

2020 ◽  
Vol 16 ◽  
pp. 78-87
Author(s):  
Xingyu Xu ◽  
Shiqing Huang ◽  
Zengyu Zhang ◽  
Lei Cao ◽  
Xiaoyu Yan
Keyword(s):  
Halogen Bonding ◽  
Linear Polymer ◽  
Boat Conformation ◽  
Halide Anions ◽  
Triazolium Salts

The synthesis of 4,5-diiodo-1,3-dimesityl-1,2,3-triazolium salts with different anions have been developed. These triazolium salts show diverse aggregation via halogen bonding between C–I bonds and anions. Triazolium with halide anions exists as a tetramer with saddle conformation. Triazolium tetrafluoroborate exists as a trimer with Chinese lantern shape conformation. Triazolium trifluoroacetate and acetate exist as dimers, respectively, while the former shows boat conformation and the latter forms rectangle conformation. Triazolium salts form a linear polymer with polyiodide.

FT-IR microspectroscopic analysis of diseased white matter brain tissues

1995 ◽  
Vol 53 ◽  
pp. 968-969
Author(s):  
Steven M. Le Vine ◽  
David L. Wetzel
Keyword(s):  
White Matter ◽  
Gray Matter ◽  
Twitcher Mouse ◽  
Grid Pattern ◽  
Marked Contrast ◽  
Spatially Resolved ◽  
Ft Ir ◽  
Ir Microspectroscopy ◽  
Chemical Evidence

In situ FT-IR microspectroscopy has allowed spatially resolved interrogation of different parts of brain tissue. In previous work the spectrrscopic features of normal barin tissue were characterized. The white matter, gray matter and basal ganglia were mapped from appropriate peak area measurements from spectra obtained in a grid pattern. Bands prevalent in white matter were mostly associated with the lipid. These included 2927 and 1469 cm-1 due to CH2 as well as carbonyl at 1740 cm-1. Also 1235 and 1085 cm-1 due to phospholipid and galactocerebroside, respectively (Figs 1and2). Localized chemical changes in the white matter as a result of white matter diseases have been studied. This involved the documentation of localized chemical evidence of demyelination in shiverer mice in which the spectra of white matter lacked the marked contrast between it and gray matter exhibited in the white matter of normal mice (Fig. 3).The twitcher mouse, a model of Krabbe’s desease, was also studied. The purpose in this case was to look for a localized build-up of psychosine in the white matter caused by deficiencies in the enzyme responsible for its breakdown under normal conditions.

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