Selective gas adsorption and unique phase transition properties in a stable magnesium metal-organic framework constructed from infinite metal chains was written by Liu, Yangyang;Chen, Ying-Pin;Liu, Tian-Fu;Yakovenko, Andrey A.;Raiff, Aaron M.;Zhou, Hong-Cai. And the article was included in CrystEngComm in 2013.Quality Control of 1,4-Diiodo-2,3,5,6-tetramethylbenzene This article mentions the following:
A 3-dimensional magnesium MOF, [Mg(H2TTTP)(κ-S-DMSO)] (PCN-72) was synthesized from the solvothermal reaction of Mg(NO3)2 and a linear dicarboxylic acid ligand, HO2C-p-C6H4-p-C6Me4-p-C6H4CO2H (H4TTTP). This MOF has a unique structure with 1-dimensional channels as well as infinite metal chains, which resembles the topol. of MIL-53. It is thermally and moisture stable. In situ powder x-ray diffraction studies reveal its interesting phase transitions under temperature change. Calculation shows that each phase of PCN-72 exhibits unique and unusual thermal expansion properties. After removing coordinated DMSO solvent at the Mg chains, activated PCN-72 can selectively adsorb CO2 over N2. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1Quality Control of 1,4-Diiodo-2,3,5,6-tetramethylbenzene).
1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Organoiodine compounds occur widely in organic chemistry, but are relatively rare in nature. The C–I bond is the weakest of the carbon–halogen bonds. These bond strengths correlate with the electronegativity of the halogen, decreasing in the order F > Cl > Br > I.Quality Control of 1,4-Diiodo-2,3,5,6-tetramethylbenzene
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com