Department of Chemistry and Center for Optical Materials Science and Engineering Technologies (COMSET), Clemson University, Clemson, South Carolina 29634, United States.
Inorg Chem. 2012 Apr 2;51(7):3956-62. doi: 10.1021/ic202316t. Epub 2012 Mar 12.
Two new hydrated borates Sr(3)B(6)O(11)(OH)(2) (1) and Ba(3)B(6)O(11)(OH)(2) (2) were hydrothermally synthesized. Their structures were determined by single-crystal X-ray diffraction and further characterized by IR, powder XRD, and DSC/TGA. Compound 1 crystallizes in the triclinic space group P-1 with unit cell parameters of a = 6.6275(13) Å, b = 6.6706(13) Å, c = 11.393(2) Å, α = 91.06(3)°, β = 94.50(3)°, and γ = 93.12(3)°, while compound 2 crystallizes in the noncentrosymmetric monoclinic space group Pc with a = 6.958(14) Å, b = 7.024(14) Å, c = 11.346(2) Å, and β = 90.10(3)°. In spite of the differences in symmetry and packing of the borate chains, both structures consist of the same fundamental building block (FBB) of a B(6)O(11)(OH)(2) unit and three unique alkaline earth metal atoms.
两种新的水合硼酸盐 Sr(3)B(6)O(11)(OH)(2) (1) 和 Ba(3)B(6)O(11)(OH)(2) (2) 被水热合成。它们的结构通过单晶 X 射线衍射确定，并通过 IR、粉末 XRD 和 DSC/TGA 进一步表征。化合物 1 结晶在三斜晶系 P-1 空间群中，具有晶胞参数 a = 6.6275(13) Å, b = 6.6706(13) Å, c = 11.393(2) Å, α = 91.06(3)°, β = 94.50(3)°, 和 γ = 93.12(3)°，而化合物 2 结晶在非中心对称的单斜晶系 Pc 空间群中，具有晶胞参数 a = 6.958(14) Å, b = 7.024(14) Å, c = 11.346(2) Å, 和 β = 90.10(3)°。尽管硼酸盐链的对称性和堆积方式存在差异，但这两种结构都由相同的基本构筑块（FBB）B(6)O(11)(OH)(2)单元和三个独特的碱土金属原子组成。
