The author of 《3-(4-Iodophenyl)pentanedinitrile》 were Nanpo, Yuuki; Okuno, Tsunehisa. And the article was published in IUCrData in 2019. Application In Synthesis of 4-Iodobenzaldehyde The author mentioned the following in the article:
In the title pentanedinitrile derivative, C11H9IN2, the iodophenyl group is connected at the 3-position. The central propylene chain of the pentanedinitrile moiety contains one gauche conformation as a result of steric repulsion with the Ph ring. Intermol. close contacts in the crystal comprise a weak Csp3-H···N hydrogen bond and a C-I···N halogen bond. The experimental part of the paper was very detailed, including the reaction process of 4-Iodobenzaldehyde(cas: 15164-44-0Application In Synthesis of 4-Iodobenzaldehyde)
4-Iodobenzaldehyde(cas: 15164-44-0) is used in synthesis of 4-[2-(trimethylsilyl)ethynyl]benzaldehyde, 5,15-dimesityl-10-(3-[2-(trimethylsilyl)ethynyi]phenyl}-20-(4-iodophenyl)porphyrin, and 5,15-dimesityl-10-[3,5-bis{2-[4-(N,N’-difluoroboryl-1,9-dimethyidipyrrin-5-yl)-phenyl]ethynyl}phenyl]-20-(4-iodophenyl)porphyrin.Application In Synthesis of 4-Iodobenzaldehyde
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com