The author of 《Six 1-aroyl-4-(4-methoxyphenyl)piperazines: similar molecular structures but different patterns of supramolecular assembly》 were Kiran Kumar, Haruvegowda; Yathirajan, Hemmige S.; Sagar, Belakavadi K.; Foro, Sabine; Glidewell, Christopher. And the article was published in Acta Crystallographica, Section E: Crystallographic Communications in 2019. Recommanded Product: 2-Iodobenzoic acid The author mentioned the following in the article:
Six new 1-aroyl-4-(4-methoxyphenyl)piperazines have been prepared, using coupling reactions between benzoic acids and N-(4-methoxyphenyl)piperazine. There are no significant hydrogen bonds in the structure of 1-benzoyl-4-(4-methoxyphenyl)piperazine, C18H20N2O2, (I). The mols. of 1-(2-fluorobenzoyl)-4-(4-methoxyphenyl)piperazine, C18H19FN2O2, (II), are linked by two C-H···O hydrogen bonds to form chains of rings, which are linked into sheets by an aromatic π-π stacking interaction. 1-(2-Chlorobenzoyl)-4-(4-methoxyphenyl)piperazine, C18H19ClN2O2, (III), 1-(2-bromobenzoyl)-4-(4-methoxyphenyl)piperazine, C18H19BrN2O2, (IV), and 1-(2-iodobenzoyl)-4-(4-methoxyphenyl)piperazine, C18H19IN2O2, (V), are isomorphous, but in (III) the aroyl ring is disordered over two sets of at. sites having occupancies of 0.942 (2) and 0.058 (2). In each of (III)-(V), a combination of two C-H···π(arene) hydrogen bonds links the mols. into sheets. A single O-H···O hydrogen bond links the mols. of 1-(2-hydroxybenzoyl)-4-(4-methoxyphenyl)piperazine, C18H20N2O3, (VI), into simple chains. Comparisons are made with the structures of some related compounds In the part of experimental materials, we found many familiar compounds, such as 2-Iodobenzoic acid(cas: 88-67-5Recommanded Product: 2-Iodobenzoic acid)
2-Iodobenzoic acid(cas: 88-67-5) belongs to organic iodides.Recommanded Product: 2-Iodobenzoic acid The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine.
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com