scholarly journals Heme-FeIII Superoxide, Peroxide and Hydroperoxide Thermodynamic Relationships: FeIII-O2•– Complex H-Atom Abstraction Reactivity

2020 ◽  
Vol 142 (6) ◽  
pp. 3104-3116 ◽  
Author(s):  
Hyun Kim ◽  
Patrick J. Rogler ◽  
Savita K. Sharma ◽  
Andrew W. Schaefer ◽  
Edward I. Solomon ◽  
...  
2011 ◽  
Vol 26 (1) ◽  
pp. 270-281 ◽  
Author(s):  
Soon Kiat Yee ◽  
Jovica V. Milanović ◽  
F. Michael Hughes

Author(s):  
Joel Bernstein

The physical and structural fundamentals of polymorphism are introduced, including a review of the phase rule and the thermodynamic relations in polymorphs. The latter are used to introduce energy–temperature diagrams, leading to the definition of the concepts enantiotropism and monotropism describing the thermodynamic relationships between and among polymorphs with appropriate examples. The alternate representation of phase diagram in terms of pressure and temperature is also presented. These lead to a number of rules regarding the relationships between polymorphs and ways to understand and predict some important physical properties: the heat-of-transition rule, the heat-of-fusion rule, the entropy-of-fusion rule, the heat-capacity rule, the density rule, and the infrared rule. Structural aspects include the distinction between crystal form and crystal habit and methods for characterizing and comparing structures in polymorphic systems. Current developments are discussed that deal with the ramifications of nanoscale situations on structural concepts and thermodynamic relationships.


CrystEngComm ◽  
2020 ◽  
Vol 22 (44) ◽  
pp. 7607-7616
Author(s):  
Laura Maria Teodorio Vidal ◽  
Beatriz Pinheiro Bezerra ◽  
Jéssica Castro de Fonseca ◽  
Auriana Serra Vasconcelos Mallmann ◽  
Francisca Cléa Florenço de Sousa ◽  
...  

The elucidation of crystal structures of polymorphs of riparins I, II, and III combined with thermal analysis studies allowed the determination of the thermodynamic relationships between polymorphic pairs.


2014 ◽  
Vol 44 (7) ◽  
pp. 1751-1775 ◽  
Author(s):  
Trevor J. McDougall ◽  
Paul M. Barker ◽  
Rainer Feistel ◽  
Ben K. Galton-Fenzi

Abstract The thermodynamic consequences of the melting of ice and sea ice into seawater are considered. The International Thermodynamic Equation Of Seawater—2010 (TEOS-10) is used to derive the changes in the Conservative Temperature and Absolute Salinity of seawater that occurs as a consequence of the melting of ice and sea ice into seawater. Also, a study of the thermodynamic relationships involved in the formation of frazil ice enables the calculation of the magnitudes of the Conservative Temperature and Absolute Salinity changes with pressure when frazil ice is present in a seawater parcel, assuming that the frazil ice crystals are sufficiently small that their relative vertical velocity can be ignored. The main results of this paper are the equations that describe the changes to these quantities when ice and seawater interact, and these equations can be evaluated using computer software that the authors have developed and is publicly available in the Gibbs SeaWater (GSW) Oceanographic Toolbox of TEOS-10.


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