ChemRxiv
These are preliminary reports that have not been peer-reviewed. They should not be regarded as conclusive, guide clinical practice/health-related behavior, or be reported in news media as established information. For more information, please see our FAQs.
PtF5 disproportionation.pdf (413.44 kB)

Relativistic contribution: an electronic explanation to the thermal disproportionation of PtF5

preprint
submitted on 09.09.2017 and posted on 15.09.2017 by Robson de Farias

In the present work, is performed a computational thermochemical study of platinum tetrafluoride (PtF4) and platinum pentafluoride (PtF5). The results are compared to those previously [1] obtained to PtF6 as well as experimental data. Is concluded that in gaseous phase PtF4 and PtF5 retain their structures and number of unpaired electrons exhibited in the solid phase. Furthermore, is proposed that the generally accepted t2g5eg0 configuration to Pt5+ is not correct. Based on the calculated results, an energy diagram is proposed to PtF5, which explain why, upon heating, platinum pentafluoride disproportionates readily [7]: 2PtF5 → PtF4 + PtF6, providing a clear, elegant and straightforward explanation to the thermal instability of PtF5 as consequence of the electronic configuration.

History

Topic

  • Solid State Chemistry

Email Address of Submitting Author

robdefarias@yahoo.com.br

Institution

Universidade Federal do Rio Grande do Norte

Country

Brazil

ORCID For Submitting Author

0000-0003-3132-7754

Declaration of Conflict of Interest

Ther are not any conflict of interest

Exports