Crystalline Alcoholamine Borates and the Triborate Monoanion
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- 作者：David M. Schubert ; Mandana Z. Visi ; Carolyn B. Knobler
- 刊名：Inorganic Chemistry
- 出版年：2008
- 出版时间：March 17, 2008
- 年：2008
- 卷：47
- 期：6
- 页码：2017 - 2023
- 全文大小：437K
- 年卷期：v.47,no.6(March 17, 2008)
- ISSN：1520-510X
文摘
The triborate and pentaborate compounds 3-hydroxy-2,2-dimethylpropylammonium triborate(1+), [HOCH2C(CH3)2NH3][B3O3(OH)4] (1), and 2-hydroxyethylammonium pentaborate(1−), [HOCH2CH2NH3][B5O6(OH)4]·H2O (2), were prepared by crystallization from concentrated aqueous boric acid solutions containing the respective alcoholamines at a boric acid−alcoholamine mole ratio of 3.33:1.00. Compound 1 crystallized in the triclinic space group P1rial Unicode MS,Lucida Sans Unicode,Code2000,GNU Unifont">̅ with a = 5.9595(9) Å, b = 6.3024(9) Å, c = 15.594(2) Å, α = 91.218(2)°, β = 91.138(2)°, γ = 118.034(2)°, V = 516.56(13) Å3, and Z = 2; 2 crystallized in the monoclinic space group P21/n with a = 11.2469(8) Å, b = 9.5091(6) Å, c = 11.5422(8) Å, β = 90.175(1)°, V = 1234.41(15) Å3, and Z = 4. Compound 1 contains a rare example of a structurally characterized hydroxyl-hydrated triborate monoanion. Comparisons are made with other known examples of this anion.