This work describes the synthesis of a novel zinc(II) porphyrin complex, namely [Meso-4α-tetra-(1,2,3-triazolyl)phenylporphyrinato]zinc(II) symbolized by 4α-[Zn(TAzPP)] (4), using click chemistry approach in presence copper iodide. All synthetic species reported herein were fully characterized elemental analysis, infrared spectroscopy, proton nuclear magnetic resonance, UV-visible and fluoresce...

Abstract This paper is devoted to the study of exclusive charm and bottom bound states which are suitable, at least partially, for a non-relativistic description. Starting from simple choice quarkonia tetra-quark wave functions we their production cross sections, total widths more interesting decay properties. In particular, compute sections ground state scalar getting results compatible with v...

Myxinol tetra-acetate was examined by both nuclear-magnetic-resonance and mass-spectral techniques. The results are compared with corresponding data for 5alpha-ranol tetra-acetate and 5alpha-cyprinol tetra-acetate. The structure deduced for myxinol tetra-acetate, 3beta,7alpha,16alpha,27-tetrahydroxy-5beta-cholestane, is in agreement with that simultaneously arrived at by Haslewood (1966).

In the title compound, [Cu(C(6)H(5)O(3))(C(18)H(15)P)(2)]·C(18)H(15)P·CH(3)OH, the pyran-4-one ring is appromimately planar (r.m.s deviation = 0.0138 Å), with the Cu(I) atom 0.451 (5) Å out of the plane. The Cu(I) atom has a distorted tetra-hedral coordination. The O-Cu-O angle is 80.07 (8)° and the P-Cu-P angle is 123.49 (3)°. The crystal packing is stablized by intra-molecular C-H⋯O inter-act...

We report on the detection with the Infrared Space Observatory (ISO) of a molecular band at 57.5 μm (174 cm) in carbon-rich evolved stars and in Sgr B2. Taking into account the chemistry of these objects the most likelihood carrier is a carbon chain. We tentatively assign the band to the ν5 bending mode of C4 for which a wavenumber of 170-172.4 cm has been derived in matrix experiments (Withey ...

Dipolyunsaturated phosphatidylcholines from bovine retina contain a whole series of unusual fatty acids. Methyl esters from these acids are very strongly retained on polar and nonpolar gas-liquid chromatography stationary phases. On thin layers of silica-AgNO3, they separate as tetra-, penta-, and hexaenoic fatty acid methyl esters. After hydrogenation, the three polyunsaturated fractions give ...

Cyclic voltammetry and controlled-potential (bulk) electrolysis have been used to investigate the direct reduction of 5-chloro-2-(2,4-dichlorophenoxy)phenol (triclosan, 1) in dimethylformamide (DMF) containing tetra-n-butylammonium tetrafluoroborate (TBABF4). Cyclic voltammograms for reduction of 1 at glassy carbon electrodes exhibit three irreversible peaks attributed to successive reductive c...

In the title compound, C(32)H(19)BN(6)O(2), the B atom adopts a BON(3) tetra-hedral coordination geometry. In the crystal, pairs of mol-ecules are associated through aromatic π-π stacking inter-actions between the concave faces of the boronsubphthalocyanine fragments at a centroid-centroid distance of 3.4951 (19) Å and a weaker inter-action of the same type between the convex faces of the same ...

In this study, temperature distribution as a function of the spar-cap thickness was numerically analyzed using 20 kW wind carbon blade model. “Realizable k-ε”, which adopted turbulence model for heat transfer analysis, effective in convection and diffusion calculations. SC/TETRA, commercial thermal fluid analysis software, used to calculate flow from panel outside boundary simulation order deri...

Recently, a new carbon 3D allotrope named pentadiamond was proposed. Pentadiamond is composed of atoms in mixed sp$^2$ and sp$^3$-like hybridization. In this work, we have carried out detailed investigation the electronic optical properties structure using first-principles (DFT) methods. Our results show that has an indirect bandgap semiconductor $2.50$ eV with GGA-PBE $3.31$ HSE06. Its static ...