Identical in Formula but Not Isotypic in Configuration: Discovery of a New Highly Polymerized [B₁₂O₂₄] Cluster in Cs₃AlB₆O₁₂

Abstract

The discovery of new borates with unique structures has always been a growing part of solid-state chemistry, especially for polyborates. Herein, a new aluminoborate, Cs3AlB6O12, has been discovered by a high-temperature solution in a vacuum system. The highly polymerized [B12O24] cluster, unlike the annular configuration in previously reported polyborates, is found in Cs3AlB6O12 for the first time. The different linkage reflected by the local symmetry in cluster makes these borates not isotypic, although the formula of [B12O24] is identical. Experimental measurement performed on Cs3AlB6O12 powder reveals the deep-ultraviolet transparent spectral feature.

Pb2Al2B3O8F3: structure and properties of a new fluoroaluminoborate with non-traditional chain-like B3O8 groups

“…The bond valence sum (BVS) calculations for Pb, Al, B, O, and F atoms provide values of 2.05, 2.84, 2.89–3.00, 1.90–2.22, and 0.84–0.92, which agrees well with the expected oxidation states of +2, +3, +3, −2, and −1, respectively. 40,41 The EDS analyses (Fig. S1†) confirm the presence of Pb, Al, B, O, and F elements, which further confirms the accuracy of the structure.…”

Na2SrB16O26: a new borate with independent interpenetrating B–O networks and deep-ultraviolet cutoff edge

“…The IR spectrum confirms the existence of [BO 3 ] and [BO 4 ] groups which is consistent with the results obtained from the crystallographic data. 62–70…”

Syntheses, structures and optical properties of two B3O7 cluster-based borates

“…Borates are a rapidly growing research focus of crystalline materials not only due to their abundant structures 1–5 but also for their wide applications in photoluminescence-based materials, photocatalysis and especially nonlinear optics (NLO). 6–10 Compared with other inorganic NLO materials, borates have higher possibilities of acentric structures, which is a rigorous prerequisite of a NLO material.…”