Ge, Yu et al. published their research in CrystEngComm in 2014 | CAS: 3268-21-1

1,4-Diiodo-2,3,5,6-tetramethylbenzene (cas: 3268-21-1) belongs to iodide derivatives. Organic iodides are widely used in organic synthesis. Halogenation of aromatic hydrocarbons is a very important reaction via an electrophilic aromatic substitution. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Safety of 1,4-Diiodo-2,3,5,6-tetramethylbenzene

Assembly of a series of zinc coordination polymers based on 1,4-bis[2-(4-pyridyl)ethenyl]-2,3,5,6-tetramethylbenzene and 1,3-benzenedicarboxylate derivatives was written by Ge, Yu;Li, Ni-Ya;Ji, Xue-Ying;Wang, Jun-Feng;Liu, Dong;Tang, Xiao-Yan. And the article was included in CrystEngComm in 2014.Safety of 1,4-Diiodo-2,3,5,6-tetramethylbenzene This article mentions the following:

Five new coordination polymers, namely, [Zn(1,3-BDC)(1,4-bpetmb)]n (1), {[Zn2(5-Cl-1,3-BDC)2(1,4-bpetmb)2]·MeCN}n (2), [Zn(5-NO2-1,3-BDC)(1,4-bpetmb)0.5]n (3), {[Zn(5-NH2-1,3-BDC)(1,4-bpetmb)0.5]·2H2O}n (4) and [Zn2(μ-OH)(1,3,5-BTC)(1,4-bpetmb)]n (5) have been synthesized under solvothermal conditions, based on the bis-pyridyl linker 1,4-bis[2-(4-pyridyl)ethenyl]-2,3,5,6-tetramethylbenzene (1,4-bpetmb) along with 1,3-benzenedicarboxylate (1,3-BDC) or its derivatives such as 5-chloro-1,3-benzenedicarboxylate (5-Cl-1,3-BDC), 5-nitro-1,3-benzenedicarboxylate (5-NO2-1,3-BDC), 5-amino-1,3-benzenedicarboxylate (5-NH2-1,3-BDC) and 1,3,5-benzenetricarboxylate (1,3,5-BTC). Compounds 1–5 have been characterized by elemental anal., IR spectroscopy, powder x-ray diffraction (PXRD) and unambiguously by single crystal X-ray diffraction anal. 1 And 2 feature the 2D (4,4) net. 3 Comprises an interlocked 3D framework, and the 3D framework is derived from the inclined interpenetration of the 2D (4,4) net. 4 Exhibits a thick 2D (3,4)-connected network with a Schlafli symbol of (63)(65·8). 5 Displays a 3D two-fold interpenetrating (3,5)-connected framework with the Schlafli symbol of (63)(67·83). Thermal stability and solid-state photoluminescence properties of 1–5 were also investigated. 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. Organic iodides are widely used in organic synthesis. Halogenation of aromatic hydrocarbons is a very important reaction via an electrophilic aromatic substitution. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Safety of 1,4-Diiodo-2,3,5,6-tetramethylbenzene

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