The title compounds have been synthesized by adding hydrogen peroxide to an aqueous solution of A2[Pt(CN)4] (A = K, Rb, Cs). They grow as yellow needles after concentrating and cooling to 4 ◦C. The structures were elucidated from single crystal analysis. The isostructural compounds crystallize monoclinically, in space group C2/c with Z = 4. K2Pt(CN)4 ·H2O2: a = 13.3751(7), b = 11.2713(6), c = 6...

The high T, superconducting oxide YBa&usO, --x reacts with hydrogen gas. Thermogravimetric, X-ray and neutron scattering experiments allow us to propose a two-step type of hydrogen bonding. Firstly, a few hydrogen atoms fill some oxygen vacancies and may favourably modify the electron state, giving rise to a slight increase in the critical temperature. Secondly, after a prolonged heating period...

The formation process of microstructure in cement pastes was first simulated with a numerical model CEMHYD3D. The influence of water-to-cement ratio and particles size on heat release and degree of hydration were then investigated. In addition, the mass of CH and C–S–H phases simulated have been verified by measuring values by thermogravimetry–differential scanning calorimetry (TG-DSC) and X-ra...