ULTRASONIC INTERACTION STUDIES OF TERNARY MIXTURE SOLUTIONS AT 303 AND 313 TEMPERATURE

Densities and ultrasonic velocities of Aniline in cyclohexane + Dimethyl ketone and Aniline in cyclohexane + ethyl methyl ketone of these ternary mixtures of different compositions have been determined experimentally at 303 and 313 K. The results obtained from density and ultrasonic velocity measurement have been used to calculate the acoustical parameters such as, adiabatic compressibility (Ks), free Length (Lf ) , and acoustic impedance (Z). The results are discussed in terms of the intermolecular hydrogen bonding and molecular association in these ternary systems.

Adsorption of 2-Butanone on Pristine Graphene: A First-principles Study

The adsorption mechanism of 2-butanone (ethyl methyl ketone) on the surface of graphene is investigated by using Density Functionals Theory (DFT). A 2-butanone molecule is chosen as a selected example of main volatile organic compounds (VOCs) in exhaled breath. To describe the absorption of 2-butanone and graphene substrate, we have performed DFT simulations including van de Waals (vdW) interactions implemented in the Vienna Ab-initio Simulation Package (VASP). The global minimum energy configurations and binding energies for a 2-butanone molecule adsorbed on graphene are determined by using Computational DFT-based Nanoscope tool for imaging the binding possibility of the adsorbed molecules on the graphene surface. The adsorption energy profiles are calculated by three functionals of van der Waals interactions: revPBE-vdW, optPBE-vdW, and vdW-DF2. It is shown that the adsorption energy is highly sensitive to the vdW functionals. The fundamental insights of the interactions between 2-butanone and graphene through molecular doping, i.e., charge transfer are discussed in detail.

Orthoamide und Iminiumsalze, XCVI. Push-pull-substituierte 1,3,5-Hexatriene aus Orthoamiden von Alkincarbonsäuren und Birckenbach-analogen Acetophenonen

From acetone and the orthoamide of phenylpropiolic acid (21b) N,N-dimethyl-phenylpropiolic acid amide (24) is formed. In contrast, the reaction of chloroacetone (28) with 21b results in the vinylogous guanidinium chloride 29. Unexpectedly, the Birckenbach-analogoue ethyl methyl ketone (34) reacts with the orthoamide 21b to give the push-pull-substituted butadiene 36. In contrast to this observation, the reaction of the Birckenbach-analogous acetophenones 30 with the orthoamides 21a–c delivers the push-pull-substituted 1,3,5-hexatrienes 31a–j.

Exploration of Device in Mechanical Properties - Treated Coir Sheath by Epoxy Resin expenditure Fuzzy Logic Rule

Mechanical properties of the regulator multifaceted schemes additional well than outmoded approaches Fuzzy logic in this research manufacture contracts around the construction procedure than spare coir sheath reinforced polymer composite material. The scheme of fuzzy logic organizer has three efforts to prosper accurate coir casing armored polymer composite lasciviously. It stood established to incomes for indicator lay-up distance to ethyl methyl ketone peroxide catalyst, cobalt naphthalene as an accelerator. Action of coir to NaOH at dissimilar reach retro is achieved in a oversight of advance fuzzy logic to attachment asset amongst fibres of environment resources and alignments upheld to coir fibres. To decompound breadth is invented secure at 3mm.Flexural asset to a fibres is enhanced afterwards benefaction the fibres for 10 hours of alkali operation. Established on the possessions dirty for choir, imagine fibres should be peculiar to using Fuzzy logic equally to support of green composites.