Topic
Acetonitrile
About: Acetonitrile is a research topic. Over the lifetime, 11298 publications have been published within this topic receiving 175275 citations. The topic is also known as: cyanomethane & ethyl nitrile.
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69 citations
TL;DR: Anion-free BU6 was found to be insoluble in any of the investigated solvents; however, it dissolves in methanol/chloroform (1:1) or acetonitrile/water (1):1) mixtures in the presence of the tetrabutylammonium salt of a suitable anion.
Abstract: Methods for the preparation of anion-free bambus[6]uril (BU6)
are presented. They are based on the oxidation of iodide anion,
which is bound inside the macrocycle, utilizing dark oxidation
by hydrogen peroxide or photooxidation in the presence of
titanium dioxide. Anion-free BU6 was found to be insoluble in
any of the investigated solvents, however, it dissolves in the
presence of the tetrabutylammonium salt of a suitable anion.
The highest association constant (8.9x10E5 1/M) was found for
the 1:1 complex of BU6 with TBAI in acetonitrile/water mixture.
A number of crystal structures of BU6 complexes with various
anions were obtained.
69 citations
TL;DR: The reactivity of [LMnII]2+ toward addition of hydrogen peroxide (H2O2) in acetonitrile solution, where L is a pentadentate polypyridine ligand, offers new opportunities for the study of oxidation reactsivity of Mn (hydro)peroxo complexes.
Abstract: In the present work we report the reactivity of [LMnII]2+ toward addition of hydrogen peroxide (H2O2) in acetonitrile solution, where L is a pentadentate polypyridine ligand. Formation of peroxo complexes is evidenced by low-temperature UV–visible spectroscopy, ESI-mass spectrometry, and EPR spectroscopy using parallel as well as perpendicular mode detection. The influence of the medium (basicity, water content) on the formation of various species is investigated. In basic nonanhydrous medium the fate of the reaction mixture solution is the formation of the di-μ-oxo mixed-valent Mn(III)Mn(IV) dinuclear complex. In acidic medium the building of the oxo bridges is avoided and the reaction mixture evolves toward oxidation of the ligand L. This reaction route offers new opportunities for the study of oxidation reactivity of Mn (hydro)peroxo complexes.
69 citations
Patent•
03 Jun 1996
TL;DR: Bleaching compositions are provided that comprise a nitrile containing compound that has the n-alkyl morpholinium acetonitrile (N-MCA) acid and two of the quaternary nitrogen bonds are part of a saturated ring as mentioned in this paper.
Abstract: Bleaching compositions are provided that comprise a nitrile containing compound that has the nitrile bonded to a quaternary nitrogen through a methylene unit (where one or both of the normal hydrogens can be substituted), and two of the quaternary nitrogen bonds are part of a saturated ring. This saturated ring contains from two to eight atoms in addition to the quaternary nitrogen. A source of active oxygen will react with the nitrile for bleaching applications. Particularly preferred nitrile containing compounds are N-alkyl morpholinium acetonitrile salts.
69 citations
TL;DR: Dichloromethane and acetonitrile containing thiophene and oxidant, respectively, were adopted as a binary organic solvent for oxidative synthesis of unsubstituted polythiophene (UPTh) under various conditions, i.e., oxidant/monomer molar ratio, polymerization temperature, and reaction time as discussed by the authors.
69 citations