Topological characterization of 3D molecular structures is an emerging study area in theoretical and computational chemistry. These structural descriptors are used a variety domains, including chemical graph theory, drug delivery, nanomaterial characterization. Quantitative can be to characterize the physical properties given compound. indices graphs numerical quantities that allow us collect i...

Natural zeolites are commonly described as macromolecular sieves. Zeolite networks very trendy chemical due to their low-cost implementation. Sodalite network is one of the most studied types zeolite networks. It helps in removal greenhouse gases. To study this rich network, we use an authentic mathematical tool known M-polynomials topological index and show some physical properties numerical f...

In-situ synthesis of a zeolite with encapsulated Pt was conducted to prepare a sulfur-resistant noble metal catalyst based on concepts of shape selectivity and hydrogen spillover. The prepared zeolite was of the sodalite type, in which the pore openings allow H2 to enter the pores but not H2S. Chemisorption with H2/CO was conducted to verify the most of Pt atoms distribution in the cage of Pt/S...

mineral dissolution and precipitation may occur. The effect of alkaline solutions on the transformation of Buried waste storage tanks at the USDOE Hanford Reservation clay minerals has been the subject of intensive research in Washington State have released solutions containing high concentrations of Na, OH, NO3, and Al into the vadose zone. When such (Cuadros and Linares, 1996; Bauer and Berge...

The thermal conductivities of quartz and the siliceous zeolites sodalite, faujasite and zeolite-A have been calculated using molecular dynamics simulations. The predicted thermal conductivities range over one order of magnitude at room temperature, and the quartz values are in reasonable agreement with the available experimental data. Evidence of phonon scattering is found by considering the la...

Lapis lazuli is defined as a rock of varying composition. The following minerals have been identified in this rock by X-ray diffraction: lazurite, haüyne, sodalite, nosean, mica, diopside, wollastonite, calcite and pyrite. Among them the first two minerals, lazurite and haüyne, are responsible for the unique blue colour of massive lapis lazuli [1]. As it has been proved [2], the blue colour of ...