Imidazolium-based catenane host for bromide recognition in aqueous media
نویسندگان
چکیده
A tetracationic imidazolium-based catenane is reported which selective for bromide over other halides in aqueous media.
منابع مشابه
1,1'-Binaphthyl-based imidazolium chemosensors for highly selective recognition of tryptophan in aqueous solutions.
A type of 1,1'-binaphthyl-based imidazolium chemosensor module has been synthesized for the highly selective recognition of tryptophan (Trp) among the eleven alpha-amino acids investigated in aqueous solutions via synergistic effects of multiple hydrogen bonding and electrostatic interactions. These results have demonstrated that the C-2 hydrogen atom of the imidazolium ring plays a key role as...
متن کامل1,3-Bis(2-cyanobenzyl)imidazolium bromide
In the title salt, C(19)H(15)N(4) (+)·Br(-), the central imidazole ring makes dihedral angles of 83.1 (2) and 87.6 (2)° with the terminal benzene rings. The dihedral angle between the terminal benzene rings is 6.77 (19)°; the cyanide substituents have an anti orientation. In the crystal, the cations and anions are linked via C-H⋯N and C-H⋯Br hydrogen bonds, forming sheets lying parallel to the ...
متن کاملArsenate recognition in aqueous media by a simple tripodal urea.
The environmentally important and toxic arsenate anion (HAsO4(2-)) is trapped in the cavity of a dimeric capsular assembly formed by a tripodal urea receptor. The selective binding of HAsO4(2-) over other anions is observed in a semi-aqueous solvent using a (1)H NMR titration study.
متن کاملA flavin-based [2]catenane.
We report the synthesis, solid-state and preliminary solution properties of a flavin-based [2]catenane.
متن کامل1,3-Bis[(6-methyl-2-pyridyl)methyl]imidazolium bromide
The title compound, C(17)H(19)N(4) (+)·Br(-), is built up from 1,3-bis-[(6-methyl-2-pyridin-yl)meth-yl]imidazolium cations and bromide anions. Each of two 6-methyl-2-pyridyl rings is rotated out of the imidazole plane, making dihedral angles of 79.90 (9) and 86.40 (9)°. The packing is consolidated by aromatic π-π inter-actions between the pyridine rings of neighbouring mol-ecules [centroid-cent...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical Communications
سال: 2021
ISSN: ['1359-7345', '1364-548X']
DOI: https://doi.org/10.1039/d0cc06299e