ReBe2B5O11 (Re = Y, Gd): Rare-Earth Beryllium Borates as Deep-Ultraviolet Nonlinear-Optical Materials

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• 作者：Xue Yan ; Siyang Luo ; Zheshuai Lin ; Jiyong Yao ; Ran He ; Yinchao Yue ; Chuangtian Chen
• 刊名：Inorganic Chemistry
• 出版年：2014
• 出版时间：February 17, 2014
• 年：2014
• 卷：53
• 期：4
• 页码：1952-1954
• 全文大小：208K
• ISSN：1520-510X

文摘

Two novel rare-earth beryllium borates ReBe₂B₅O₁₁ (Re = Y, Gd) have been discovered. These materials possess a unique structural feature with a platelike infinite _{鈭?/sub>²[Be2B5O11]^{3鈥?/sup> superlayer, which is first found in beryllium borates. The superlayer can be seen as sandwich-shaped with 鈭?/sub>1[B4O8]4鈥?/sup> chains linking up with a 鈭?/sub>2[Be2BO5]3鈥?/sup> sublayer above and below via the B鈥揙鈥揃e bond. Each 鈭?/sub>2[Be2B5O11]3鈥?/sup> layer is further connected to the neighboring layer through Re3+ cations coordinating with O atoms. Both of these two crystals have very short cutoff wavelengths below 200 nm and exhibit relatively large nonlinear-optical (NLO) effects, indicating their promising applications as good deep-UV NLO crystals.}}