The two compounds Fe2B3O7 (a = 663.61(4), c = 438.39(3) pm, space group: P 4 ‾ $\overline{4}$ 21 m) and Mn4(B6O13(OH)) (a = 445.14(1), b = 683.56(2), c = 1330.34(3) pm, β = 90.42(1)°, space group: P21/c) were synthesized under high-pressure/high-temperature conditions of 9 GPa and 800 °C. Their crystal structures have been determined via single-crystal X-ray diffraction and the occurring side-phases have been identified. Fe2B3O7 crystallizes in the melilite structure type, whereas the novel structure of Mn4(B6O13(OH)) can be derived from the structures of the minerals melilite or johachidolite.

中文翻译：

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Fe2B3O7 和 Mn4(B6O13(OH)) 的比较研究：连接黄长石和六角石的新结构

两种化合物Fe2乙3氧7（A= 663.61(4),C= 438.39(3) pm，空间组：磷 4 ‾ $\上划线{4}$ 21 米）和锰4（乙6氧13（哦）） （A= 445.14(1),乙= 683.56(2),C= 1330.34(3) 下午,β= 90.42(1)°，空间群：磷21/C）在9 GPa和800 °C的高压/高温条件下合成。它们的晶体结构已确定通过单晶 X 射线衍射和发生的副相已被识别。铁2乙3氧7以黄长石结构类型结晶，而 Mn 的新颖结构4（乙6氧13(OH)) 可以源自矿物黄长石或角石石的结构。