Ito, Akitaka et al. published their research in Inorganic Chemistry in 2012 | CAS: 3268-21-1

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics. 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.Safety of 1,4-Diiodo-2,3,5,6-tetramethylbenzene

Photophysical and Photoredox Characteristics of a Novel Tricarbonyl Rhenium(I) Complex Having an Arylborane-Appended Aromatic Diimine Ligand was written by Ito, Akitaka;Kang, Yuanyuan;Saito, Shota;Sakuda, Eri;Kitamura, Noboru. And the article was included in Inorganic Chemistry in 2012.Safety of 1,4-Diiodo-2,3,5,6-tetramethylbenzene This article mentions the following:

We report the synthesis and photophys./photoredox characteristics of a novel tricarbonyl rhenium(I) complex having a (dimesityl)boryldurylethynyl (DBDE) group at the 4-position of a 1,10-phenanthroline (phen) ligand, [Re(CO)3(4-DBDE-phen)Br] (ReB). ReB in THF at 298 K showed the metal-to-ligand charge transfer (MLCT) emission at around 681 nm with the lifetime (τem) of 900 ns. The relatively long emission lifetime of ReB compared with that of [Re(CO)3(phen)Br] (RePhen, τem = 390 ns) was discussed on the basis of the temperature dependent τem and Franck-Condon anal. of the emission spectra of the two complexes. Emission quenching studies of both ReB and RePhen by a series of electron donors revealed that the photoinduced electron transfer (PET) quenching rate constant of ReB was faster than that of RePhen at a given Gibbs free energy change of the PET reaction (ΔGET0 > -0.5 eV). All of the results on ReB were discussed in terms of the contribution of the CT interaction between the π-orbital(s) of the aryl group(s) and the vacant p-orbital on the boron atom in DBDE to the MLCT state of the complex. In the experiment, the researchers used many compounds, for example, 1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1Safety 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. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics. 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.Safety of 1,4-Diiodo-2,3,5,6-tetramethylbenzene

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com