Be2(BO3)(IO3): The First Anion-mixed Van der Waals Member in the KBe2BO3F2 Family with a Very Strong Second Harmonic Generation Response,Angewandte Chemie International Edition

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Be2(BO3)(IO3): The First Anion-mixed Van der Waals Member in the KBe2BO3F2 Family with a Very Strong Second Harmonic Generation Response
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2021-05-26 , DOI: 10.1002/anie.202105777
Guang Peng _{1,

2} , Chensheng Lin ₁ , Huixin Fan _{1,

2} , Kaichuang Chen _{1,

2} , Bingxuan Li ₁ , Ge Zhang ₁ , Ning Ye _{1,

3}

Affiliation

To obtain new nonlinear optical (NLO) materials with a large second harmonic generation (SHG) effect has always been a great challenge. We have synthesized the first metal borate-iodate NLO crystal, Be₂(BO₃)(IO₃) (BBIO), by multicomponent modification of KBe₂BO₃F₂ (KBBF), in which the structural features of KBBF were maintained and (IO₃)⁻ groups were connected to honeycomb [Be₂BO₃O₂]_∞ layers. As the first KBBF family member with mixed anionic groups, BBIO benefited from the synergistic effect of (IO₃)⁻, (BO₃)³⁻ and (BeO₄)⁶⁻ groups, and exhibited a very strong SHG response of ≈7.2×KH₂PO₄ (KDP, @1064 nm) and a large birefringence (Δn) of 0.172 at 1064 nm. BBIO may, unexpectedly, optimize growth habits via van der Waals forces. This study presents borate-iodate as a new NLO material and it demonstrates opportunities in KBBF structural engineering.

中文翻译：

Be2(BO3)(IO3)：KBe2BO3F2 家族中第一个阴离子混合范德华成员，具有非常强的二次谐波发生响应

获得具有大二次谐波产生（SHG）效应的新型非线性光学（NLO）材料一直是一个巨大的挑战。我们通过多组分改性KBe ₂ BO ₃ F ₂ (KBBF)合成了第一个金属硼酸盐-碘酸盐NLO晶体Be ₂ (BO ₃ )(IO ₃ ) (BBIO)，其中保持了KBBF的结构特征，并且(IO ₃ ) ^-组连接到蜂窝[Be ₂ BO ₃ O ₂ ] _∞层。作为第一个具有混合阴离子基团的KBBF家族成员，BBIO受益于（IO ₃）的协同作用⁻ , (BO ₃ ) ³⁻和 (BeO ₄ ) ⁶⁻基团，并表现出非常强的 SHG 响应 ≈7.2×KH ₂ PO ₄ (KDP, @1064 nm) 和0.172 处的大双折射 (Δ n ) 1064 纳米。BBIO 可能出人意料地通过范德华力优化生长习惯。这项研究将硼酸碘酸盐作为一种新的 NLO 材料，并展示了 KBBF 结构工程中的机会。

更新日期：2021-07-27

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