A Germapyramidane Switches Between 3D Cluster and 2D Cyclic Structures in Single-Electron Steps.
A Germapyramidane Switches Between 3D Cluster and 2D Cyclic Structures in Single-Electron Steps.
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DOI:
10.1002/anie.202211749
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发表时间:
2022-11-21
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影响因子:
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Reaction of the imidazolium‐substituted iphosphate‐diide, (Ipr)2C2P2 (IDP), with GeCl2 ⋅ dioxane and KBArF24 [(BarF24)−=tetrakis[(3,5‐trifluoromethyl)phenyl]borate)] afforded the dicationic spherical‐aromatic nido‐cluster [Ge(η4‐IDP)]2+ ([1]2+) (Ipr=1,3‐bis(2,6‐diisopropylphenyl)imidazolium‐2‐ylidene). This complex is a rare heavy analogue of the elusive pyramidane [C(η4‐C4H4)]. [1]2+ undergoes two reversible one‐electron reductions, which yield the radical cation [2]⋅ + and the neutral GeII species 3. Both [2]⋅ + and 3 rearrange in solution forming the 2D aromatic and planar imidazolium‐substituted digermolide [4]2+ and germole‐diide 5, respectively. Both planar species can be oxidized back to [1]2+ using AgSbF6. These redox‐isomerizations correspond to the fundamental transformation of a 3D aromatic cluster into a 2D aromatic ring compound upon reduction and vice versa. The mechanism of these reactions was elucidated using DFT calculations and cyclic voltammetry experiments. The mutual redox‐isomerisation of a cationic nido‐germapyramidane into a planar aromatic germole‐diide is reported. The mechanism was elucidated using electrochemical and theoretical studies.
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影响因子:
16.6
作者:
Chen, Xiaodan;Liu, Liu Leo;Li, Zhongshu
通讯作者:
Li, Zhongshu
DOI:
10.1073/pnas.1714499115
发表时间:
2018-09-18
影响因子:
11.1
作者:
Harris, Jared D.;Moran, Mark J.;Aprahamian, Ivan
通讯作者:
Aprahamian, Ivan
DOI:
10.1002/anie.199423061
发表时间:
1994-12-05
期刊:
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH
影响因子:
--
作者:
BALZEREIT, C;WINKLER, HJ;BERNDT, A
通讯作者:
BERNDT, A
影响因子:
16.6
作者:
Canac, Y;Bertrand, G
通讯作者:
Bertrand, G
影响因子:
4.4
作者:
Brandenburg, Jan Gerit;Bannwarth, Christoph;Grimme, Stefan
通讯作者:
Grimme, Stefan