Mayo, R. Alex et al. published their research in Inorganic Chemistry in 2021 | CAS: 638-02-8

2,5-Dimethylthiophene (cas: 638-02-8) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The electrophilic substitution of benzothiophene systems is much less regioselective than that of indoles. Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.Reference of 638-02-8

Heisenberg Spin Chains via Chalcogen Bonding: Noncovalent S···O Contacts Enable Long-Range Magnetic Order was written by Mayo, R. Alex;Morgan, Ian S.;Soldatov, Dmitriy V.;Clerac, Rodolphe;Preuss, Kathryn E.. And the article was included in Inorganic Chemistry in 2021.Reference of 638-02-8 The following contents are mentioned in the article:

The new radical ligand 5,8-dimethyl-1,4-dioxonaphtho[2,3-d][1,2,3]dithiazolyl (1) is reported. Two crystal polymorphs, 1α and 1β, differing in their pancake-bonded dimerization motif and S···O contact network, are identified. The self-assembly of Mn(II) metal ions with 1 gives [Mn(hfac)2]3(1)2 that exhibits a Mn(II)-radical-Mn(II)-radical-Mn(II) linear arrangement of three Mn(hfac)2 units bridged by two radical ligands (hfac = 1,1,1,5,5,5-hexafluoroacetylacetonato-). Characterization by single-crystal x-ray diffraction of this Mn(II) complex packing structure reveals close noncovalent S···O contacts between the [Mn(hfac)2]3(1)2 units in one dimension along the b-c direction. The magnetic properties of the coordination complex were characterized by d.c. and a.c. susceptibility measurements on a microcrystalline solid. The magnetic data down to 4.8 K indicate effective ferromagnetic interactions (J/kB = +0.16 K) between the mol. ST = 13/2 units along the supramol. chain involving noncovalent S···O contacts. Below 2.9 K, a nonzero out-of-phase component appears in the a.c. susceptibility, indicating the presence of a three-dimensional magnetic phase transition. This study involved multiple reactions and reactants, such as 2,5-Dimethylthiophene (cas: 638-02-8Reference of 638-02-8).

2,5-Dimethylthiophene (cas: 638-02-8) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The electrophilic substitution of benzothiophene systems is much less regioselective than that of indoles. Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.Reference of 638-02-8

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem