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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TL;DR: In this article, stable derivatives of oxaphospholes were obtained from the reaction between electron-deficient acetylenic compounds and phenacyl bromide or its derivatives in the presence of triphenylphosphine in acetonitrile as the solvent in excellent yields.
Abstract: Stable derivatives of oxaphospholes were obtained from the reaction between electron-deficient acetylenic compounds and phenacyl bromide or its derivatives in the presence of triphenylphosphine in acetonitrile as the solvent in excellent yields. GRAPHICAL ABSTRACT
49 citations
TL;DR: In this article, visible sum-frequency generation has been applied to the vapor/solid interface between acetonitrile and ZrO2 and the surface vibrational spectra of the C�N and C�H moieties of submonolayer coverages of adsorbed on Zr O2 in equilibrium with the vapor have been obtained and compared with the surface spectra.
49 citations
TL;DR: In this article, three macrocyclic Lewis acidic hosts containing two symmetrically disposed dichlorostanna moieties (1-3, ring sizes 18, 22, 26 atoms, respectively) have been prepared as has an acyclic di-tin model, 5,5-16,16-tetrachloro-5,16 distannadocosane (4).
49 citations
TL;DR: The experiments reveal that for both dyes, the polar protic solvent favors the aggregation process more than the aprotic solvent.
Abstract: Absorption, fluorescence, and fluorescence excitation spectral studies of two planar, cationic phenazinium dyes, namely, phenosafranin (PSF) and safranin-T (ST), have been performed in protic and aprotic polar solvents. The studies reveal the formation of both J- and H-aggregates in concentrated solutions. The planarity of the phenazinium skeleton and the presence of a positive charge are attributed to be the driving force for this aggregation behavior. The aggregates are established to be dimers only. The positive inductive effect of the methyl substituents in safranin-T augments the aggregation process. The experiments reveal that for both dyes, the polar protic solvent favors the aggregation process more than the aprotic solvent.
49 citations
TL;DR: In this article, the reduction of α-[S2Mo18O62]4- at glassy carbon and platinum macro-and microdisk electrodes (stationary and rotated) in acetonitrile and in 95/5 acetitrile/water mixtures containing 0.02 M perchloric acid was reported.
Abstract: Detailed voltammetric studies are reported of the reduction of α-[S2Mo18O62]4- at glassy carbon and platinum macro- and microdisk electrodes (stationary and rotated) in acetonitrile and in 95/5 acetonitrile/water mixtures containing 0.02 M perchloric acid. Experiments at −30 °C and at short time scales in acetonitrile detect eight one-electron processes in the potential range 0.1 to −2.7 V versus Fc+/Fc (Fc = ferrocene). The eight processes fall into four pairs. The differences in potential within each pair are remarkably constant (0.26 ± 0.02 V), as are the separations between adjacent pairs (0.60 ± 0.06 V). This periodicity is consistent with spin-paired [MoVO]2(μ-O) fragments providing a significant contribution to the overall superexchange stabilization. The influence of the following chemical reactions (primarily protonation by trace water) increases with the number of electrons added, although the five-electron reduced species [S2Mo18O62]9- has a significant lifetime on the voltammetric time scale. ...
49 citations