Complexation of 2,6-helic[6]arene and its derivatives with 1,1′-dimethyl-4,4′-bipyridinium salts and protonated 4,4'-bipyridinium salts: an acid–base controllable complexation
نویسندگان
چکیده
منابع مشابه
4,4′-Dimethyl-2,2′-bipyridinium dichloride
In the title compound, C(12)H(14)N(2) (2+)·2Cl(-), the 4,4'-dimethyl-2,2'-bipyridinium cation is essentially planar (r.m.s. deviation for all non-H atoms = 0.004 Å) and is located on a crystallographic inversion centre. The cations and chloride anions lie in planes parallel to (111) and are connected by N-H⋯Cl and C-H⋯Cl hydrogen bonds.
متن کامل1,1′-Dimethyl-4,4′-bipyridinium bis(tetrafluoridoborate)
In the title compound, C(12)H(14)N(2) (2+)·2BF(4) (-), the cation has a centre of symmetry at the mid-point of the central C-C bond. π-π inter-actions, with a shortest atom-to-atom distance of 3.757 (4) Å, extend the crystal structure into a one-dimensional supra-molecular chain.
متن کامل1,1′-Dimethyl-4,4′-bipyridinium bis(triiodide)
In the title compound, C(12)H(14)N(2) (2+)·2I(3) (-), the 1,1'-dimethyl-4,4'-bipyridinium (DMBP) dication is charge balanced by two triiodide ions. The DMBP dication is planar within 0.010 (5) Å. The asymmetric unit contains only half of the dication, the other half being generated by an inversion center. Weak C-H⋯I inter-actions link the ions into sheets parallel to (121).
متن کاملThe Relationship between Redox Potentials and Torsional Angles in 4,4’-Dimethyl N, N’-Alkylidene 2,2’-Bipyridinium Salts
The redox potentials of 4,4’-dimethyl-N’N’-alkylidene bridged 2,2’-bipyridinium salts derivatives (DBPAs) can be controlled by changing the N, N’-alkylidene bridge length which changes the conformation of the DBPAs.. In this paper, the torsional angles between the two pyridine rings and the molecular energy of DBPAs are calculated using a PC based software package (AccuModel 1.2). The relations...
متن کاملContribution of ion pair complexation with bile salts to biliary excretion of organic cations in rats.
The objective of this study was to examine whether ion pair complexation with endogenous bile salts in hepatocytes contributes to the preferential biliary excretion of organic cations (OCs). Tributylmethylammonium (TBuMA; mol wt 200) and triethylmethylammonium (TEMA; mol wt 116) were selected as model OCs that exhibit significant and negligible biliary excretion, respectively, in rats. The appa...
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ژورنال
عنوان ژورنال: Beilstein Journal of Organic Chemistry
سال: 2019
ISSN: 1860-5397
DOI: 10.3762/bjoc.15.173