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Synthesis of pyramidal tetraarylborate pentads

Abstract

In the present study, we designed tetrahedral tetraarylborate pentads which were synthesized by a typical click reaction, copper-catalyzed azide-alkyne cyclization. The synthesis of the borate pentads was confirmed by FT-IR and NMR spectroscopies, and NMR measurements indicated a rapid exchange of bound and unbound counter cations. The obtained borate pentads exhibited a representative behavior of weak electrolytes, thus decrease of their concentration caused rapid increase of their molar conductivity, especially at the limit of dilution. Additionally, the observed association constant did not correspond to the theoretical association constant, probably because of the multivalent ionic dissociation dependent on the dielectric constant of the media.

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Publication details

The article was received on 06 Apr 2019, accepted on 02 Aug 2019 and first published on 06 Aug 2019


Article type: Paper
DOI: 10.1039/C9NJ01772K
New J. Chem., 2019, Accepted Manuscript

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    Synthesis of pyramidal tetraarylborate pentads

    N. Sakamoto, M. Ohta, K. Kokado and K. Sada, New J. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C9NJ01772K

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