A Stacking Faults-Containing Silicogermanate with 24-Ring Channels and Unbranched Zweier Silica Double Chains

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• 作者：Liqiu Tang ; Xiaoyan Ren ; A. Ken Inge ; Tom Willhammar ; Daniel Gr眉ner ; Jihong Yu ; Xiaodong Zou
• 刊名：Crystal Growth & Design
• 出版年：2012
• 出版时间：July 3, 2012
• 年：2012
• 卷：12
• 期：7
• 页码：3714-3719
• 全文大小：473K
• 年卷期：v.12,no.7(July 3, 2012)
• ISSN：1528-7505

文摘

A novel open-framework silicogermanate SU-JU-14 (Stockholm University-Jilin University-Number 14), |NH₃CH₂CH₂NH₃|₃[Ge_6.40Si_0.60O₁₅(OH)]₂[Ge_0.73Si_3.27O₈], was synthesized by using ethylenediamine as the structure-directing agent under solvothermal conditions. Single-crystal structure analysis reveals that the crystal structure of SU-JU-14 consists of extended 24-ring channels built from [(Ge,Si)₇O₁₂O_6/2(OH)]^{3鈥?/sup> [(Ge,Si)₇] clusters and unbranched zweier silica double chains [Ge_0.73Si_3.27O₄O_8/2]. Charge neutrality is achieved by diprotonated ethylenediamine guest molecules. The structure consists of stacking faults of layered arrays in two different configurations along the a-axis. SU-JU-14 was characterized by X-ray diffraction, X-ray energy dispersive spectroscopy, scanning electron microscopy, nuclear magnetic resonance, inductively coupled plasma, and thermogravimetric analyses. Crystallographic data: monoclinic, space group C2/c, and unit cell parameters: a = 35.625 (7) 脜, b = 28.580 (6) 脜, c = 10.403 (2) 脜, and 尾 = 98.30 (3)掳.}