Phase diagram of quarter-filled band organic salts, , and Br

Phase diagram of quarter-filled band organic salts [EDT-TTF-CONMe2]2X, X=AsF6 and Br.

An investigation of the P-T phase diagram of the quarter-filled organic conductors, [EDT-TTF-CONMe2]2X is reported on the basis of transport and NMR studies of two members, X=AsF6 and Br of the family. The strongly insulating character of these materials in the low-pressure regime has been attributed to a remarkably stable charge-ordered state confirmed by 13C NMR and the only existence of 1/4 ...

Phase diagram of quarter - filled band organic salts , 1⁄2 EDT TTF CONMe 2 2 X , X 1⁄4 AsF 6 and

Metal-insulator and insulator-insulator transitions in the quarter-filled band organic conductors.

The theory of the 2k F and 4k F instabilities in quarter-lled band organic conductors is revisited. The phase angles of the 2k F bond and charge density waves are shown to change as electron correlation is turned on, and this switching of the phase angle is critical for understanding the bond distortion patterns in the real materials. Intersite Coulomb interactions in the real materials must be...

Infrared and Raman Studies of Charge Ordering in Organic Conductors, BEDT-TTF Salts with Quarter-Filled Bands

This paper reviews charge ordering in the organic conductors, β′′-(BEDT-TTF) (TCNQ), θ-(BEDT-TTF)2X, and α-(BEDT-TTF)2X. Here, BEDT-TTF and TCNQ represent bis(ethylenedithio)tetrathiafulvalene and 7,7,8,8-tetracyanoquinodimethane, respectively. These compounds, all of which have a quarter-filled band, were evaluated using infrared and Raman spectroscopy in addition to optical conductivity measu...

Ternary Phase Diagram Modeling of Chiral Medetomidine Salts Using NRTL-SAC Model

Experimental determination of solubility and ternary phase diagram of chiral compound are of tedious and time consuming tasks, and in many cases, there is not enough experimental data for different enantiomeric compositions to access the experimental ternary phase diagram. Using thermodynamic models with predictive capability, having less dependency on experimental data, affords a great advanta...