2026-04-29T06:17:41Z https://www.eurjchem.com/index.php/eurjchem/oai

oai:ojs.www.eurjchem.com:article/2597 2024-12-31T06:32:45Z eurjchem:ART driver

Synthesis and crystal structure determination of a new 1D polymer adduct of 1,2-di(pyridin-4-yl)ethane, based on B-N dative bonded eight-membered cyclo-1,3,3,5,7,7-hexaphenyl-1,5-dibora-3,7-disiloxane Bull, Okpara Sergeant Don-Lawson, Chioma 1D polymer Diphenylsilanediol Phenylboronic acid Cyclodiboradisiloxane 1,2-Di(pyridin-4-yl)ethane B-N dative-bonded-adduct A novel 1D polymer of 1,2-di(pyridin-4-yl)ethane (L1), connected via B-N dative-bonded adduct with an eight-membered cyclo-1,3,3,5,7,7-hexaphenyl-1,5-dibora-3,7-disiloxane [Ph6B2Si2O4]·L1 was synthesized and characterized. The new compound [Ph6B2Si2O4]·L1 was prepared by the reaction of cyclo-1,3,3,5,7,7-hexaphenyl-1,5-dibora-3,7-disiloxane and bis(pyridyl)ethane in a mixture of diethyl ether and petroleum ether solvents at reflux. The 1D polymer [Ph6B2Si2O4]·L1 was characterized by single-crystal X-ray diffraction, nuclear magnetic resonance, and FT-IR spectroscopy. The single crystal X-ray diffraction studies reveal that the aforementioned compound crystalized in the monoclinic crystal system with a centrosymmetric space group of P21/n (no. 14), a = 16.5378(4) Å, b = 12.6201(3) Å, c = 20.4904(5) Å, β = 96.689(2)°, V = 4247.43(18) Å3, Z = 4, T = 173.0 K, μ(MoKα) = 0.130 mm-1, Dcalc = 1.233 g/cm3, 14630 reflections measured (4.96° ≤ 2Θ ≤ 56.424°), 8424 unique (Rint = 0.0235, Rsigma = 0.0460) which were used in all calculations, the final R1 was 0.0455 (I > 2σ(I)) and wR2 was 0.1201 (all data). Furthermore, the compound exhibits various noncovalent interactions in the crystal packing, such as intermolecular and intramolecular, as well as hydrogen bonding. This study demonstrates the potential for making novel materials via the combination of cyclodiboradisiloxanes (Lewis acid) and nitrogen-containing ligands (Lewis bases). Atlanta Publishing House LLC 2024-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/plain https://www.eurjchem.com/index.php/eurjchem/article/view/2597 10.5155/eurjchem.15.4.325-331.2597 European Journal of Chemistry; Vol. 15 No. 4 (2024): December 2024; 325-331 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/2597/2870 https://www.eurjchem.com/index.php/eurjchem/article/view/2597/2856 Copyright (c) 2024 Okpara Sergeant Bull, Chioma Don-Lawson https://creativecommons.org/licenses/by-nc/4.0