化学
吡啶
共价键
电泳剂
路易斯酸
超分子化学
卤键
非共价相互作用
溴
分子
氯
计算化学
氟
有机化学
催化作用
氢键
作者
Dayne C. Georgiou,Phillip L. Butler,Elisse C. Browne,David J. Wilson,Jason L. Dutton
摘要
A study on the bonding in bis-pyridine halonium cations has been carried out using both theoretical and synthetic techniques. The primary thrust for the study is to highlight the opportunities potentially afforded by considering iodine as a Lewis acid in a classic coordination sense. Our results suggest that the iodine dipyridine complex ([pyr-I-pyr]+) can be considered as a coordination complex of [I]+. The lighter bromine and chlorine analogues are more towards the covalent rather than the dative side of bonding, while [pyr-F-pyr]+ is best described as an ion-molecule complex with one strong covalent F-pyr bond and one weak F-pyr dispersion interaction. Finally, theoretical and synthetic studies suggest that the commercially available [pyr-F]+ cation cannot be considered as a coordination complex of ‘F+’, despite its use as a source of electrophilic fluorine.
科研通智能强力驱动
Strongly Powered by AbleSci AI