DIÁNEZ MILLÁN , María Jesús

CIsHI6N204, triclinic, P1, a = 12.719 (3), b= 7.485 (2), c= 7.728 (2) A, a =93"18 (2), fl = 100-40 (2), 3' = 99-24 (2) °, V = 711-5 (3) •3, Z = 2, Dm = 1.35, Dx = 1.34 Mg m -3, A(Mo Ka) = 0.7107/~, /.+ = 0"092 mm-~, F(000) = 304, T= 300 K, final R = 0.08 for 1124 observed reflections. The IR, Raman and ~H NMR spectra of 2,2- diacylethenamines...

Influence of tin additions on the precipitation processes in a Cu-Ni-Zn alloys. The influence of 1.1 wt% tin additions on the precipitation hardening of Cu-11 wt% Ni-20 wt% Zn alloy was studied by Differential Scanning Calorimetry (DSC), microhardeness measurements and High Resolution Transmission Electron Microscopy (HRTEM). The calorimetric...

n the title compound, C 21 H 26 N 2 O 8 , the configurations of the three chiral centres are known from the synthesis, corre- sponding to a d - arabino configuration. Both double bonds show the E configuration in the solid state. Packing of the molecules is governed by normal van der Waals contacts

The SCTA method implies to control the te mperature in such a way that the reaction rate changes with the time according to a function previously defined by the user. Constant Rate Thermal Analysis (CRTA) is one of the most commonly used SCTA methods and implies achieving a temperature profile at whic h ...

The advantages of the sample-controlled thermal analysis (SCTA) for both the kinetic analysis of solid-state reactions and the synthesis of materials are reviewed. This method implies an intelligent control of the temperature by the solid-state reaction under study in such a way that the reaction rate as a function of the time fits a profile...