Show simple item record

dc.contributor.authorFarràs, Pau
dc.contributor.authorCioran, Ana Maria
dc.contributor.authorŠícha, Václav
dc.contributor.authorTeixidor, Francesc
dc.contributor.authorŠtíbr, Bohumil
dc.contributor.authorGrüner, Bohumír
dc.contributor.authorViñas, Clara
dc.identifier.citationFarràs, Pau, Cioran, Ana Maria, Šícha, Václav, Teixidor, Francesc, Štíbr, Bohumil, Grüner, Bohumír, & Viñas, Clara. (2009). Toward the Synthesis of High Boron Content Polyanionic Multicluster Macromolecules. Inorganic Chemistry, 48(17), 8210-8219. doi: 10.1021/ic9006907en_IE
dc.description.abstractReported are further consequences of the dioxane ring-opening in [3,3’-Co(8-(CH2CH2O)2-1,2-C2B9H10)(1’,2’-C2B9H11)] [1] with twelve-vertex carborane mono- and dianions. The removal of one BH vertex from the 1,2-carborane part of the double-cluster monoanions of type [1’’-X-2’’-R-closo-1’’,2’’-C2B10H11]- [2]- (where X = [3,3’-Co(8-(CH2CH2O)2-1,2-C2B9H10)(1’,2’-C2B9H11)]- and R = H [2]-, CH3 [8]- and C6H5 [9]-) via heating with ethanolic KOH or CsF led to the isolation of a series of orange dianions having as general formula [7’’-X-8’’-R-7’’,8’’-nido -C2B9H11]2- (R = H, [11]2-; CH3, [12]2- and C6H5, [13]2-). The same procedure applied to the dianionic triple-cluster compound [1’’,2’’-X2-1’’,2’’-closo-C2B10H10]2- [5]2- yielded the trianionic species [7’’,8’’-X2-7’’,8’’-nido -C2B9H10]3- [14]3-. Boron degradation of the related 1,7-carborane anion [1’’-X-1’’,7’’-closo-C2B10H11]- [3]- was achieved upon heating with CsF in ethylene glycol to generate the [7’’-X-7’’,9’’-nido-C2B9H11]2- [15]2- dianion. However, the degradation of the corresponding [1’’,7’’-X2-1’’,7’’-closo-C2B10H10]2- [6]2- dianion under the same conditions led only to the cleavage of the ether chain with no possible isolation the expected [7’’,9’’-X2-7’’,9’’-nido-C2B9H10]3- trianion. The study has been complemented by experimental procedures leading to the still not fully reported starting monoanionic compounds [2]-, [8]-, [9]- and [3]- and to the starting dianions [5]2- and [6]2-. The anions containing the eleven-vertex moiety can be isolated as either Cs+ or [N(CH3)4]+ salts and can be converted into other salts via metathesis with suitable counter-cations. The structure of all compounds isolated in this study has been suggested on the basis of NMR and MS methods. The disarticulation of complex 11B NMR spectra has been successfully achieved in this work and has been proven to be a powerful tool for the characterization of multicluster boron containing molecules.en_IE
dc.description.sponsorshipSpanish Ministerio de Ciencia y Tecnología (MAT2006-05339 and FPU grant to A.C.), CSIC (I3P grant to P.F.) and the Generalitat de Catalunya 2005/SGR/00709 are appreciated. Support from the Ministry of Education of the Czech Republic (Project LC523 and Research Plan AV0Z40320502) and Grant Agency of the Academy of Sciences of Czech Republic (Project No. IAAX00320901).en_IE
dc.publisherAmerican Chemical Societyen_IE
dc.relation.ispartofInorganic Chemistryen
dc.titleTowards the synthesis of high boron content polyanionic multicluster macromoleculesen_IE
dc.local.contactPau Farras. Email:

Files in this item

Attribution-NonCommercial-NoDerivs 3.0 Ireland
This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. Please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.

The following license files are associated with this item:

This item appears in the following Collection(s)

Show simple item record