Be2(BO3)(IO3): The First Anion‐mixed Van der Waals Member in the KBe2BO3F2 Family with a Very Strong Second Harmonic Generation Response. (30th June 2021)

• Record Type: Journal Article
• Authors: Peng, Guang; Lin, Chensheng; Fan, Huixin; Chen, Kaichuang; Li, Bingxuan; Zhang, Ge; Ye, Ning
• Is Part Of: Angewandte Chemie. Volume 133:Number 32(2021)
• Page Start: 17555
• Page End: 17558
• Publication Date: 2021-06-30
• Subjects: anions -- KBe2BO3F2 family -- metal borate-iodate -- second harmonic generation -- van der Waals forces; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.202105777
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: 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 KBe2 BO3 F2 (KBBF), in which the structural features of KBBF were maintained and (IO3 ) − groups were connected to honeycomb [Be2 BO3 O2 ]∞ 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×KH2 PO4 (KDP, @1064 nm) and a large birefringence (Δ n ) 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. Abstract : Be2 (BO3 )(IO3 ) is the first metal borate‐iodate NLO crystal. It is also the first anion‐mixed van der Waals member in the KBe2 BO3 F2 family with a very strong second harmonic generation response.