Na3Y3(BO3)4: a new noncentrosymmetric borate with an open-framework structure†
Abstract
A new noncentrosymmetric borate, Na3Y3(BO3)4, was grown in the Na2O–B2O3–NaF flux system. Its open-framework structure features a large hexagonal tunnel (5.92 Å in diameter), which is extremely rare in borates. First-principles calculations on its kinetic stability and optical properties were performed.