Pyromellitic Diimide-Extended Resorcin[6]arene: Synthesis, Structure, and Iodine Adsorption
Jing Zeng1, Wan-Xia Liu1, Man-Hua Ding1
1Department of Biology and Chemistry, Hunan University of Science and Engineering, Yongzhou 425100, China.
Abstract:
In this work, we report the synthesis of a novel macrocyclic arene, named pyromellitic diimide-extended resorcin[6]arene (1), achieved by introducing the pyromellitic diimide units into the per-methylated resorcin[6]arene scaffold. Single-crystal analysis reveals a propeller blade structure for 1. Host 1 can capture not only volatile iodine in the air but also inorganic iodine-containing species I3- ions in water with fast adsorption speed and high uptake capacity. Moreover, 1 exhibits excellent recyclability and potential as a stationary phase in column setups, which opens up new avenues for the purification of iodine-contaminated water.
More Related Videos
Related Concept Videos
[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement
Structure of Conjugated Dienes
Conjugated dienes are compounds characterized by the presence of alternating double and single bonds. In a conjugated system like 1,3-butadiene, the unhybridized 2p orbital on each carbon overlaps continuously, allowing the π electrons to be delocalized across the entire molecule. In contrast, this type of overlap does not occur in cumulated and isolated dienes, such as 2,3-pentadiene and 1,4-pentadiene, respectively. Instead, the π electrons remain localized between the double...
[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction
Thermal and Photochemical Electrocyclic Reactions: Overview
Thermal Electrocyclic Reactions: Stereochemistry
Selection Rules: Thermal Activation
Conjugated systems containing an even number of π-electron pairs undergo a conrotatory ring closure. For example, thermal electrocyclization of (2E,4E)-2,4-hexadiene, a conjugated diene containing two π-electron pairs, gives trans-3,4-dimethylcyclobutene.
Diels–Alder Reaction Forming Cyclic Products: Stereochemistry


