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Metallacarborane‐Based Nanostructures: A Carbon‐Wired Planar Octagon
Author(s) -
Yao Haijun,
Sabat Michal,
Grimes Russell N.,
Fabrizi de Biani Fabrizia,
Zanello Piero
Publication year - 2003
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200390255
Subject(s) - planar , delocalized electron , monomer , electrochemistry , electron delocalization , reduction (mathematics) , ring (chemistry) , carbon fibers , square (algebra) , computer science , materials science , chemistry , physics , nanotechnology , mathematics , polymer , organic chemistry , algorithm , geometry , electrode , composite number , computer graphics (images)
A planar C 16 B 8 octagonal macrocycle that incorporates four identical metallacarborane units, linked by four diethynyl chains, has been prepared from a monomeric cobaltacarborane through a designed multistep synthesis (see picture). The air‐stable molecule undergoes stepwise electrochemical reduction in THF solution to generate mono‐, di‐, and tetraanions, with the cyclic and square‐wave voltammetric data indicating significant electron delocalization in the ring system.