In the crystal structure of the title compound, C(11)H(11)FO(2), the methine CH forms an intra-molecular hydrogen bond with the carboxyl- O atom. The mol-ecules form dimers through hydrogen bonding between carboxyl- groups. These dimers are linked to each other by C-H⋯O contacts between the benzene and carbonyl groups of adjoining mol-ecules. In addition, there are weak inter-molecular C-H⋯F co...

The Sn atom in the polymeric title compound, [Sn(C(6)H(5))(3)(C(10)H(16)NO(3))](n), is five-coordinated within a trans-C(3)O(2) donor set that defines an approximate trigonal-bipyramidal geometry. The carboxyl-ate ligand is monodentate and the amide O atom bridges a symmetry-related Sn atom, generating a chain along [010] with a linear topology. An intra-molecular carboxyl-ate-carbonyl N-H⋯O hy...

SBA-CaCl 2 (SCa) composites with high CaCl content were prepared using the non-functionalized and methyl-and carboxyl-functionalized mesoporous SBA-15 supports their thermochemical heat storage (TCHS) performance have been investigated a TG/DSC system coupled humidity generator. This paper presents influence of silica (SBA-15) functionalization on structural-textural properties SCa consequently...

This study reports the "continuous production" of high-quality, few-layer nitrogen-functionalized graphene nanosheets in aqueous solutions directly from graphite via a two-step method. The initial step utilizes our recently developed peroxide-mediated soft and green electrochemical exfoliation approach for the production of few-layer graphene nanosheets. The subsequent step, developed here, pro...

It has been found that ultrasonic treatment of diamond nanopowders contributes to surface cleaning due the removal non-diamond carbon and impurities from boundary nanodiamond grains (from 0.4 0.32 % for ASUD-99 0.67 0.55 ASUD 75, respectively). does not affect total sorption volume values specific studied samples do change, but it changes composition groups on nanoparticles, which its hydrophil...

Among the several available techniques to produce the braided composite rods for construction industry, nidltrusion process is becoming the most widespread and cost-effective continuous processing technique. The work mentions the influence of carboxyl functionalized multiwalled carbon nanotubes (MWCNTs) on the maximum speed of manufacturing process. The epoxy polymer is diglycidyl ether of bisp...

This paper studied the pollution characteristics of shale oil refinery wastewater, by using conventional analysis, infrared spectroscopy, ultraviolet chromatography and mass spectrometry. The results showed that: wastewater contains high concentration dissolved organic matter, which was poor in biological treatment. structure groups such as benzene ring, carbonyl group, hydroxyl ether group car...

An equilibrium study of Bacillus atrophaeus (B.a) spores on functionalized Single-Wall Carbon Nanotubes (SWCNTs) has been performed in order to characterize the adsorption properties of the spores/nanotubes complex. The carbon nanotubes here investigated were subjected to a two-step purification and functionalization treatment in order to introduce chemical groups on their basal planes. The inc...

The crystal structures of two chromone derivatives, viz. ethyl 6-(4-methyl-phen-yl)-4-oxo-4H-chromene-2-carboxyl-ate, C19H16O4, (1), and ethyl 6-(4-fluoro-phen-yl)-4-oxo-4H-chromene-2-carboxyl-ate C18H13FO4, (2), have been determined: (1) crystallizes with two mol-ecules in the asymmetric unit. A comparison of the dihedral angles beween the mean planes of the central chromone core with those of...