High Pressure-Temperature Phase Diagram of 1,1-Diamino-2,2-dinitroethylene (FOX-7)

The Journal of Physical Chemistry. a
Matthew BishopYogesh K Vohra

Abstract

The pressure-temperature (P-T) phase diagram of 1,1-diamino-2,2-dinitroethylene (FOX-7) was determined by in situ synchrotron infrared radiation spectroscopy with the resistively heated diamond anvil cell (DAC) technique. The stability of high-P-T FOX-7 polymorphs is established from ambient pressure up to 10 GPa and temperatures until decomposition. The phase diagram indicates two near isobaric phase boundaries at ∼2 GPa (α → I) and ∼5 GPa (I → II) that persists from 25 °C until the onset of decomposition at ∼300 °C. In addition, the ambient pressure, high-temperature α → β phase transition (∼111 °C) lies along a steep boundary (∼100 °C/GPa) with a α-β-δ triple point at ∼1 GPa and 300 °C. A 0.9 GPa isobaric temperature ramping measurement indicates a limited stability range for the γ-phase between 0.5 and 0.9 GPa and 180 and 260 °C, terminating in a β-γ-δ triple point. With increasing pressure, the δ-phase exhibited a small negative dT/dP slope (up to ∼0.2 GPa) before turning over to a positive 70 °C/GPa slope, at higher pressures. The decomposition boundary (∼55 °C/GPa) was identified through the emergence of spectroscopic signatures of the characteristic decomposition products as well as trapped inclusions within the solid K...Continue Reading

References

May 17, 2006·Journal of Hazardous Materials·M AnniyappanB R Gandhe
Dec 7, 2007·The Journal of Physical Chemistry. a·Xue-zhong FanZi-ru Liu
Aug 6, 2010·The Journal of Physical Chemistry. a·Zbigniew A Dreger, Yogendra M Gupta
Jan 27, 2012·The Journal of Physical Chemistry. a·D Mathieu
Aug 18, 2012·The Journal of Chemical Physics·Raja S ChellappaStephen Sheffield
Nov 14, 2012·The Journal of Chemical Physics·Matthew M BishopNenad Velisavljevic
Dec 11, 2013·The Journal of Chemical Physics·Mihindra Dunuwille, Choong-Shik Yoo
Jun 19, 2014·The Journal of Physical Chemistry. a·Zbigniew A DregerYogendra M Gupta
Dec 3, 2015·The Review of Scientific Instruments·M K Jacobsen, N Velisavljevic

❮ Previous
Next ❯

Citations

Nov 16, 2018·Physical Chemistry Chemical Physics : PCCP·Adam A L MichalchukCarole A Morrison
Aug 6, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Jianzhong ZhangLiping Wang

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

The Journal of Chemical Physics
Raja S ChellappaStephen Sheffield
The Journal of Chemical Physics
Matthew BishopNenad Velisavljevic
The Journal of Chemical Physics
Lyci GeorgeSurendra K Saxena
© 2021 Meta ULC. All rights reserved