3 years ago

Synthesis of Cyclic and Cage Borosilicates Based on Boronic Acids and Acetoxysilylalkoxides. Experimental and Computational Studies of the Stability Difference of Six- and Eight-Membered Rings

Synthesis of Cyclic and Cage Borosilicates Based on Boronic Acids and Acetoxysilylalkoxides. Experimental and Computational Studies of the Stability Difference of Six- and Eight-Membered Rings
Diego Martínez-Otero, Fernando Cortés-Guzmán, Aarón Torres-Huerta, Uvaldo Hernández-Balderas, Vojtech Jancik, Miriam de J. Velásquez-Hernández, Lillian G. Ramírez-Palma
The reaction of acetoxysilylalkoxides with boronic acids represents an attractive route to cyclic borosilicates containing SiO4 units. The reaction proceeds at low temperature and allows stabilization of the hitherto unknown B2SiO3 ring. Furthermore, the size of the inorganic core in the resulting product can be easily modulated by stoichiometry and the number of acetate groups attached to silicon atom. The reaction mechanism was studied by 1H NMR spectroscopy and DFT calculations.

Publisher URL: http://dx.doi.org/10.1021/acs.inorgchem.7b01580

DOI: 10.1021/acs.inorgchem.7b01580

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