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...
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April 5, 2017 (v1)PublicationUploaded on: December 4, 2022
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April 7, 2017 (v1)Publication
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
Uploaded on: March 27, 2023 -
April 3, 2017 (v1)Publication
The PII proteins from the cyanobacteria Synechococcus sp. PCC 7942 and Synechocystis sp. PCC 6803 have been crystallized and high-resolution structures have been obtained using X-ray crystallography. The core of these new structures is similar to that of the PII proteins from Escherichia coli, although the structures of the T- and C-loops...
Uploaded on: March 27, 2023 -
April 3, 2017 (v1)Publication
The solid-state conformation of the title compound, C23H29NOIo, has been unequivocally established. The configuration at C 1 is/3-D-glucopyranose and the pyranose ring is essentially a perfect chair. Only the E rotamer along the N---C bond is observed
Uploaded on: December 4, 2022 -
April 5, 2017 (v1)Publication
DGICYT PB92-0525-C02-02
Uploaded on: December 4, 2022 -
April 2, 2018 (v1)Publication
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...
Uploaded on: March 27, 2023 -
March 21, 2018 (v1)Publication
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 ...
Uploaded on: March 27, 2023 -
April 10, 2018 (v1)Publication
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...
Uploaded on: December 4, 2022 -
April 3, 2018 (v1)Publication
In this paper, a novel method for calculating degradation kinetics is presented. The method has been applied to the thermal dehydrochlorination of two different samples of PVC. It has been observed that this dehydrochlorination is complex and involves two different processes. A model that accounts for the entire dehydrochlorination is proposed....
Uploaded on: March 27, 2023 -
April 4, 2018 (v1)Publication
A mechanochemical procedure is proposed for an easy preparation of a BaTiO3-Ni composite in a single step. BaTiO3 and Ni powders available in the market are mixed by dry ball milling producing a decrease of particle size and an evenly distribution of both phases. In the sintered pellets the nickel particles are homogeneously distributed into...
Uploaded on: December 5, 2022 -
April 7, 2017 (v1)Publication
The title compound, C 10 H 16 N + H 2 PO 4 H 2 O, crystallizes in the centrosymmetric space group P 2 1 / c with two independent molecules in the asymmetric unit. Therefore, nonlinear optical properties are absent. The crystal packing is governed by hydrogen bonds, so that the phosphate anions are linked head- to-tail, ...
Uploaded on: March 27, 2023 -
January 17, 2019 (v1)Publication
In this work, a mechanochemical procedure is proposed as a simple and fast method to synthesize the pure BiFeO3 perovskite phase as a nanostructured material without the need for purification treatments, while the mechanochemical reaction mechanism has been investigated and correlated with that of the conventional solid-state reaction. Thus,...
Uploaded on: December 5, 2022 -
April 19, 2017 (v1)Publication
In the title compound, C 5 H 14 N 3 + H 2 PO 4 ˇ , the cation has a central guanidinium fragment with a planar geometry, as expected for a central C sp 2 atom with a small charge delocalization along the three C–N bonds. The crystal packing is governed by hydrogen bonds so that the phosphate anions...
Uploaded on: December 4, 2022