Two new barium hydroxyborosilicates, Ba₂[Si₃B₃O₁₂(OH)] (1) and Ba[Si₂BO₆(OH)] (2), have been synthesized by a flux method at 480 °C and characterized by single-crystal X-ray diffraction and infrared spectroscopy. Both compounds have 2D layer structures. Compound 1 contains planar slabs of borosilicate formed of tetrahedral building units which can be described as condensation of three 3-connected 2D single layers with a 6³ network topology. The Ba²⁺ cations are located in both the interlayer and intralayer regions. The structure is unusual with respect to the triple tetrahedral layers. Compound 2 consists of very contorted (3,4)-connected single layers with the rare (4².6²)(4.6²)₂ topology. The single layer is composed of both tertiary and quaternary tetrahedra. The synthesis method is new. A mixture of Ba(OH)₂·8H₂O, H₃BO₃ and SiO₂ was sealed in a gold ampoule, heated at high temperature in a pressure vessel, and the flux is a small amount of concentrated aqueous hydroxide solution. Crystal data for compound 1: monoclinic, P2₁/n, a = 4.7112(2) Å, b = 29.9482(14) Å, c = 7.3773(4) Å, β = 92.593(2)°, V = 1039.81(9) ų, Z = 4, and R1 = 0.0246; compound 2: monoclinic, P2₁/c, a = 7.4206(2) Å, b = 8.9405(2) Å, c = 8.5677(2) Å, β = 90.208(1)°, V = 568.41(2) ų, Z = 4, and R1 = 0.0467.

两种新型的羟基硼硅酸钡Ba ₂ [Si ₃ B ₃ O ₁₂（OH）]（1）和Ba [Si ₂ BO ₆（OH）]（2）通过助熔剂法在480°C下合成，并通过单晶X射线衍射和红外光谱。两种化合物均具有2D层结构。化合物1包含由四面体建筑单元形成的硼硅酸盐平板，可以描述为三层3连接的2D单层与6 ³网络拓扑的缩合。Ba ²⁺阳离子位于层间和层内区域。对于三重四面体层，该结构是不寻常的。化合物2由扭曲非常严重的（3,4）连接的单层组成，具有罕见的（4 ² .6 ²）（4.6 ²）₂拓扑。单层由第三和第四四面体组成。合成方法是新的。将Ba（OH）₂ ·8H ₂ O，H ₃ BO ₃和SiO _2的混合物密封在金安瓿中，在压力容器中在高温下加热，并且焊剂为少量的浓氢氧化物水溶液。化合物1的晶体数据：单斜晶系，P 2 ₁ / Ñ，一个 = 4.7112（2）埃，b  = 29.9482（14）A，C ^  = 7.3773（4）β= 92.593（2）°，V  = 1039.81（9）埃³，Z  = 4，R 1 = 0.0246；化合物2：单斜晶，P 2 ₁ / c，a  = 7.4206（2）Å，b  = 8.9405（2）Å，c  = 8.5677（2）Å，β= 90.208（1）°，V  = 568.41（2）Å ³，Z  ＝ 4，且R 1 ＝ 0.0467。