Empty spaces are abhorred by nature, which immediately rushes in to fill the void. Humans
have learnt pretty well how to make ordered empty nanocontainers, and to get useful …

A review on silica clathrate compounds, which are variants of pure silica zeolites with
relatively small voids, is presented. Zeolites have found many uses in industrial and …

Silica clathrate compounds (clathrasils) and clathrate hydrates are structurally analogous
because both materials have framework structures with cage-like voids occupied by guest …

An experimental method is described for determining the low-temperature heat capacity (C
p) of mg-sized powder samples using the Quantum Design “Physical Properties …

CO2–containing melanophlogite from Fortunillo, Italy was studied using a micro–Raman
spectrometer with the ability to measure the low–frequency region. A very intense and broad …

The concentrations and isotopic compositions of N and C were obtained for five
melanophlogite samples, ideal formula 46SiO2⋅ 6 (CO2, N2)⋅ 2 (CH4, N2), from various …

EPR line shape simulations of CH3/SiO2 clathrates and comparison to CH3/N2O and
CH3/SiO2 experiments reveal the motional conditions of the CH3 radical up to the unusual …

The crystal-structure and the high-pressure behavior of a natural cubic melanophlogite (Sp.
Gr. Pm3n at room-conditions), a type-I SiO2 clathrate containing only methane as guest gas …

Melanophlogite (type I clathrate) has a microporous framework of corner sharing SiO 4
tetrahedra, which can host guest gases. Here, a multi–analytical approach has been …

The evolution with pressure of the CH4 vibrational modes related to C–H stretching has
been followed by in situ Raman spectroscopy on a single crystal of cubic melanophlogite …