the effects of substituents on the symmetry and the nature of halogen bonds in [n∙∙∙x∙∙∙n]+-type systems are presented for the yc5h4n∙∙∙x∙∙∙nc5h5 (y = no2, cn, h, ch3, och3, oh, nh2, x = cl, br, i) complexes. some structural parameters, energy data and electronic properties were explored with the density functional theory (dft) calculations. in addition, electrostatic potentials were used in es...

Porous silicon samples were prepared by electrochemical etching method for different etching times. The structural properties of porous silicon (PS) samples were determined from the Atomic Force Microscopy (AFM) measurements. The surface mean root square roughness (σ rms) changes as function of porosity were studied, and the influence of etching time on porosity and roughness was studied too. U...

We forecast the constraints on single-field inflation from bispectrum of future high-redshift surveys such as MegaMapper. Considering non-local primordial non-Gaussianity (NLPNG), we find that current methods will yield order σ(fNLeq)≈23, σ(fNLorth)≈12 in a joint power-spectrum and analysis, varying both nuisance parameters cosmology, including conservative range scales. Fixing cosmological qua...

Using a data sample of (1310.6±7.0)×106 J/ψ events taken with the BESIII detector at center-of-mass energy 3.097 GeV, we search for first time lepton number violating decay Σ−→pe−e− and rare inclusive Σ−→Σ+X, where X denotes any possible particle combination. The Σ− candidates are tagged in J/ψ→Σ¯(1385)+Σ− decays. No signal found, upper limits on branching fractions 90% confidence level determi...

In this study, the notion of isotopy generalized Bol loop is characterized. A isotope a σ-generalized shown to be σ’-generalized if σ’ fixes its (isotope) identity element where some conjugate σ. and only image isotope’s under right nuclear (where σ). It that can constructed using group subgroup it. conjugacy closed central loop.

In this research, Quantum-mechanical calculations were performed at the HF method with the 6-31+G*basis set and at the B3LYP method with the 6-31+G* basis set in the gas phase and five solvents such as water, DMSO, methanol, ethanol and dichloromethane at six temperatures. According to these theoretical results of IR, we extracted thermo chemical parameters such as enthalpy (∆H Kcal/mol), Gibbs...