Domingo Salazar-Mendoza, Jorge Cruz-Huerta, H. Höpfl
May 15, 2013
Citations
0
Influential Citations
29
Citations
Journal
Crystal Growth & Design
Abstract
A series of N-containing boronic esters have been prepared by combination of 3-pyridineboronic acid (3-pyba), 4-pyridineboronic acid (4-pyba), and 5-isoquinolineboronic acid (5-iqba) with ethanol, 1,2-ethanediol, and 1,3-propanediol. The resulting self-complementary tectons (SCTs) assembled further through N → B bond formation to give one tetranuclear macrocyclic and four one-dimensional polymeric boron complexes: [(3-py)B(OEt)2]4 (2), [(3-py)B(OCH2CH2O)]n (3), [(4-py)B(OEt)2]n (4), [(5-iq)B(OCH2CH2O)]n (6), and [(5-iq)B(OCH2CH2CH2O)]n (7). In conjunction with the previously reported pentadecanuclear boroxine cage (1) and high-dimensional assemblies derived from pentaerythritol, [(4-py)B(OCH2)2C(CH2O)2B(4-py)]n·4nEtOH·nH2O·nC7H8 (5), and [(5-iq)B(OCH2)2C(CH2O)2B(5-iq)]n·nEtOH (8), it was shown that a single class of self-complementary boron-based tectons can give a varied series of finite and infinite supramolecular aggregates. A comparative structural characterization of boron complexes 2–4 and 6–7 by si...