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- Title
ESTUDO TÉRMICO E ESTEREOQUÍMICO DO ACETATO DE URANILO DI-HIDRATADO.
- Authors
da COSTA, Luiz Henrique Medeiros; LIMA, Francisco José Santos; da SILVA, Ademir Oliveira
- Abstract
In our studies we can infer the intensity of the interaction of these species through the decomposition temperature. It is believed that the greater the interaction, a higher outlet temperature. We performed molecular modeling to better visualize the chemical environment around the uranium and evaluate stereochemical data of the studied compound. Through modeling, we associate the distances connections with the strength of interactions between atoms and between molecules and is shown an inverse ratio bond distance and energy required for decomposing the species, in other words, the greater the distance, the lower the temperature decomposition. Also correlated to molecular modeling with bond breaking temperatures. With the results of thermal analysis we can see that there were two events. The first event occurred at a temperature varying between 84-163 °C (with a peak temperature of 121 °C) and there was a weight loss of 7.982%, which output is related to two water molecules. In the second event, there was a mass loss of 24.503%, which was assigned the output of acetates, which are coordinated to the uranyl ion.
- Publication
Periódico Tchê Química, 2015, Vol 12, Issue 23, p66
- ISSN
1806-0374
- Publication type
Article