The title compound, C(6)H(16)N(3) (+)·Br(-), is the bromide of the monoprotonated aza-macrocyclic triamine 1,4,7-triaza-cyclo-nonane (tacn). The threefold axis of the triamine is broken by the protonation of one of the three amine functions. The ammonium proton is bonded in an intra-molecular symmetrically bifurcated hydrogen bond to the two endodentate amine functions. Direct cation-anion cont...

Deep eutectic solvents (DES) are compounds of a hydrogen bond donor (HBD) and acceptor (HBA) that contain depressed melting point compared to their individual constituents. DES have been studied for use as carbon capture media biogas upgrading. However, contaminants’ presence in might affect the by DES. In this study, conductor-like screening model real (COSMO-RS) was used determine effect temp...

In the last 2 decades, anticholinergic agents have been generally regarded as the first-choice bronchodilator therapy in the routine management of stable chronic obstructive pulmonary disease (COPD) and, to a lesser extent, asthma. Anticholinergics are particularly important bronchodilators in COPD, because the vagal tone appears to be the only reversible component of airflow limitation in COPD...

Rhodium nanoparticles (NPs) effectively catalyze the decomposition of hydrous hydrazine to produce hydrogen under ambient reaction conditions. Rh(0) NPs with a particle size of approximately 5 nm prepared in the presence of hexadecyltrimethyl ammonium bromide show higher catalytic activity.

A simple, novel, efficient and three-component procedure for the synthesis of pyrimido[4,5-d]pyrimidine-2,4-dione derivatives by the reaction of 6-amino-1,3-dimethyluracil, aldehyde and 2-benzylisothiourea hydrochloride promoted by ionic liquid 1-butyl-3-methylimidazolium bromide ([BMIm]Br) under solvent-free conditions is reported. The presented method is benefited from operational simplicity...

The microwave-assisted three-component reactions of 3,5-bis(E)-arylmethylidene]tetrahydro-4(1H)-pyridinones, acenaphthenequinone and cyclic α-amino acids in an ionic liquid, 1-butyl-3-methylimidazolium bromide, occurred through a domino sequence affording structurally intriguing diazaheptacyclic cage-like compounds in excellent yields.

By the addition of n-butyl bromide to a 1:19 copolymer of 4-vinylpyridine and styrene, water-insoluble, strong polyelectrolytes can be prepared. The addition of a hydrocarbon plasticizer permits the casting of flexible films in which large polycations are immobilized but in which bromide ions (or other small anions) are free to move. Electrical measurements on these membranes showed that they c...