由{Li@B 14}和{b15}簇单元构建的两种碱金属硼酸盐

IF 3.3 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Dalton Transactions Pub Date : 2025-09-24 DOI:10.1039/d5dt02076j

Ming-Zhao Li, Dan Qin, Juan Chen, Qi Wei, Guo-Yu Yang

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引用次数: 0

摘要

采用中温水热法制备了两种碱金属硼酸盐K7[{Li@B12O18(OH)4}{BO(OH)3}2](1)和LiNa2K2[B15O25](2)。1具有以锂为中心的[{Li@B12O18(OH)4}{BO(OH)3}2]7- ({Li@B14})簇，通过氢键形成三维超分子框架。值得注意的是，{B14}簇是首次报道的，包含一个[12:6Δ+6T]配置的[B12O18(OH)6]6-簇，末端装饰有两个BO(OH)3四面体。通过改变反应物浓度和温度的基础上得到1、2，实现了维数的展开。2展示了三种不同碱金属离子（Li+, Na+, K+）模板的三维开放框架，代表了在水热条件下获得的罕见的b15o29基框架。{B15}星团是由[12:4(3:2Δ+T)]型[B12O24]12-星团与B3O7环相连而形成的。这两种化合物都表现出紫外截止边缘和适度的双折射，表明其具有良好的紫外光学应用潜力。

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Two Alkali Metal Borates Built by {Li@B 14 } and {B 15 } Cluster Units

Two alkali metal borates, K7[{Li@B12O18(OH)4}{BO(OH)3}2] (1) and LiNa2K2[B15O25] (2), were successfully synthesized via mid-temperature hydrothermal methods. 1 features a Li-centered [{Li@B12O18(OH)4}{BO(OH)3}2]7- ({Li@B14}) cluster, forming a 3D supramolecular framework through hydrogen bonds. Notably, the {B14} cluster is reported for the first time, containing a [12:6Δ+6T]-configured [B12O18(OH)6]6- cluster terminally decorated with two BO(OH)3 tetrahedra. By varying the reactant concentrations and temperature based on 1, 2 was obtained, achieving the expansion of dimensionality. 2 exhibits a 3D open-framework templated by three kinds of distinct alkali metal ions (Li+, Na+, K+), and represents a rare example of B15O29-based framework obtained under hydrothermal conditions. The {B15} cluster is formed by a [12:4(3:2Δ+T)]-type [B12O24]12- cluster linked to a B3O7 ring. Both compounds exhibit ultraviolet (UV) cut-off edges and moderate birefringence, indicating promising potential for UV optical applications.

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来源期刊

Dalton Transactions 化学-无机化学与核化学

CiteScore

6.60

自引率

7.50%

发文量

1832

审稿时长

1.5 months

期刊介绍： Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.