pi-Bonding versus oligomerisation in the aromatic anions [C(6)H(4)N(2)E](-): formation of the cyclic tetrameric tetraanion [C(6)H(4)N(2)Sb](4)(4-) |
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| Authors: | García Felipe Less Robert J Naseri Vesal McPartlin Mary Rawson Jeremy M Wright Dominic S |
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| Institution: | Chemistry Department, Cambridge University, Lensfield Road, Cambridge, U.K.CB2 1EW. |
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| Abstract: | The reaction of 1,2-(NH(2))(2)C(6)H(4) with Sb(NMe(2))(3)/(n)BuLi gives the formally-aromatic heterocyclic anion C(6)H(4)N(2)Sb](-) which oligomerises into a cyclic tetrameric arrangement in the complex C(6)H(4)N(2)SbLi.PMDETA](4) () (PMDETA = {Me(2)NCH(2)CH(2)}(2)NMe) using a donor-acceptor bonding mode that is unique in related main group heterocyclic anions. |
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