关键词: Cations Oxidants Radicals WCAs––Weakly Coordinating Anions

来  源:   DOI:10.1002/anie.202406742

Abstract:
A selective deelectronation reagent with very high potential of +2.00 (solution)/+2.41 V (solid-state) vs. Fc+/0 and based on a room temperature stable perfluoronaphthalene (naphthaleneF) radical cation salt was developed and applied. The solid-state deelectronation of commercial naphthaleneF with [NO]+[F{Al(ORF)3}2]- generates [naphthaleneF]+⋅[F{Al(ORF)3}2]- (ORF=OC(CF3)3) in gram scale. Thermochemical analysis unravels the solid-state deelectronation potential of the starting [NO]+-reagent to be +2.34 V vs. Fc+/0 with [F{Al(ORF)3}2]- counterion, but only +1.14 V vs. Fc+/0 with the small [SbF6]- ion. Selective reactions demonstrate the selectivity of [naphthaleneF]+⋅ for deelectronation of a multitude of organ(ometall)ic molecules and elements in solution: providing the molecular structures of the acene dications [tetracene]2+, [pentacene]2+ or spectroscopic evidence for the carbonyl complex of the ferrocene dication [Fc(CO)]2+, the [P9]+ cation from white phosphorus, the solvent-free copper(I) salt starting from copper metal and the dicationic Fe(IV)-scorpionate complex [Fe(sc)2]2+.
摘要:
一种选择性去电试剂,具有极高的+2.00(溶液)/+2.41V(固态)与Fc+/0和基于室温稳固的全氟萘(萘基F)自由基阳离子盐的研制和应用。用[NO][F{Al(ORF)3}2]-对商业naph-tha-leneF进行固态去电化,生成[萘基F]*[F{Al(ORF)3}2]-(ORF=OC(CF3)3)。热化学分析揭示了起始[NO]+-试剂的固态去电子电位为+2.34Vvs.带有[F{Al(ORF)3}2]-反离子的Fc+/0,但只有+1.14Vvs.Fc+/0与小[SbF6]-离子。选择性反应证明了[萘基F]*对溶液中多种器官(金属)分子和元素的去电化的选择性:提供并苯的分子结构[四并苯]2,[并五苯]2或二茂铁指示[Fc(CO)]2的碳基复合物的光谱研究,来自白色荧光粉的[P9]+阳离子,无溶剂的铜(I)盐,从铜金属和双阳离子Fe(IV)-蝎子酸配合物[Fe(sc)2]2开始。
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