Department of Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia 3086.
Inorg Chem. 2012 Dec 3;51(23):13034-40. doi: 10.1021/ic302176f. Epub 2012 Nov 13.
The crystal structures of bis-pyridine stabilized iodine dications PhI(pyr)(2) are reported as triflate salts, representing the first ligand supported iodine dications to be structurally characterized. The pyridine complexes are susceptible to ligand exchange in reaction with stronger N-based donors such as 4-dimethylaminopyridine. Attempts to extend this reactivity to N-heterocyclic carbene and phosphine ligands, as has been accomplished in the earlier p-block groups, resulted in redox chemistry, with oxidation of the ligands rather than coordination.
报告了双吡啶稳定的二价碘阳离子PhI(pyr)(2)的晶体结构，这些盐为三氟甲磺酸盐，代表了首例结构确定的配体稳定的二价碘阳离子。吡啶配合物易与更强的 N 供体（如 4-二甲氨基吡啶）发生配体交换反应。试图将这种反应性扩展到 N-杂环卡宾和膦配体，就像在早期的 p 区元素中所完成的那样，结果是发生了氧化还原化学，配体被氧化而不是配位。
