Phase transition in iodine: a chemical picture
نویسنده
چکیده
The phase transition under pressure in iodine is analyzed using the electron localization function (ELF), explaining that the increase of the c/a ratio under compression is due to the presence of the lone pairs. A probabilistic interpretation is given for ELF. q 2004 Elsevier Ltd. All rights reserved.
منابع مشابه
The phase transition of corrected black hole with f(R) gravity
In this letter, we consider static black hole in f(R) gravity.We take advantage from corrected entropy and temperature and investigate such black hole. Finally, we study the $ P - V $ critically and phase transition of corrected black hole with respect to entropy and temperature. Here also, we obtain the heat capacity for the static black hole in $ f(R) $ gravity. This calculation help us...
متن کاملPhysico-chemical evaluation of a biocompatible microemulsion system containing IPM/Tween80/Isobutanol
A biocompatible microemulsion system comprising of isopropyl myristate (IPM) as oil, tween 80 as a non-ionic surfactant and isobuthanol as co-surfactant was studied experimentally at 298.15 K. The pseudo-ternary phase diagram for the microemulsion system has been delineated at different surfactant to co-surfactant mass ratio of 1:1, 2.4:1 and 4:1. Some physico-chemical properties such as densit...
متن کاملEquilibrium Swelling Study of Cationic Acrylamide-Based Hydrogels: Effect of Synthesis Parameters, and Phase Transition in Polyelectrolyte Solutions
Cationic copolymer gels of acrylamide and [(methacrylamido) Propyl] trimethyl ammonium chloride (MAPTAC) were synthesized by free radical aqueous solution polymerization. The Taguchi method, a robust experimental design, was employed for the optimization of the synthesis based on the equilibrium swelling capacity of the hydrogels. Based on Taguchi method a standard L16 orthogonal array with fiv...
متن کاملInvestigation of metamorphic conditions and mineralogical changes at green-schist to amphibolite facies transition zone using phase diagrams and compositions of the mineral: a case study from the Kordestan province metabasites
In this paper, metamorphic conditions (T, P and fluid composition) in greenschist to amphibolite facies transition zone are investigated using textural evidence, compositions of the minerals and phase diagrams. Metabasits from the south of Kordestan province were metamorphosed from sub-greenschist to upper amphibolite facies. Field observations and petrography studies show that there are some r...
متن کاملVapor Transport Crystal Growth of the Transition Metal Dichalcogenide Compounds
Techniques are described for growing single crystals ofthe transition metal dichalcogenide compounds Nb1 — ~Ta~Se2(0 ~ x ~ 0.20). Both iodine and selenium vapor transport have been used. A portion of the phase diagram has been determined, in order to produce the desired 2H polymorpoh for all compositions of interest. Measurement of the superconducting transition temperature is shown to be a use...
متن کامل