A new non-centrosymmetric Gd-based borate crystal Rb₇SrGd₂(B₅O₁₀)₃: growth, structure, and nonlinear optical and magnetic properties

Abstract

A new Gd-based multifunctional material, Rb7SrGd2(B5O10)3, demonstrating moderate nonlinear optical response and paramagnetic properties was obtained for the first time.

Two non-centrosymmetric mixed alkali metal and alkaline earth metal scandium borate nonlinear optical materials with short ultraviolet cutoff edges

“…The B–O bond lengths in I are comparable to those of analogous pentaborate materials reported in recent years. 30,34,40,41 The B 5 O 10 groups in the structure exist in isolation from each other, and it is notable that the two ternary rings (B1–B2–B3) in the B 5 O 10 group are almost perpendicular to each other. I and II have slightly different elements with their isomorphic materials Rb 7 SrY 2 B 15 O 30 and Rb 7 SrGd 2 B 15 O 30 .…”

“…25,26 KB 5 O 8 ·4H 2 O 27 is the earliest discovered material containing the B 5 O 10 group, which opens another direction in borate structural chemistry. Borates with the typical B 5 O 10 block have garnered increasing interest in recent years, and some materials with the same structure type containing the B 5 O 10 group have been discovered, such as A 3 REB 6 O 12 (A = K, Rb; RE = Sc, Y, Nd, Eu, and Sm), 28–33 K 6 AMSc 2 B 15 O 30 (A = Li, Na, Li 0.7 Na 0.3 , M = Ca, Sr), 28,34 K 6 Li 3 Sc 2 B 15 O 30 , 35 K 7 Li 2 Y 2 B 15 O 30 , 36 K 7 M II RE 2 B 15 O 30 (M II = Ca, Sr, Ba, Zn, Cd, Pb; RE = Sc, Y, La, Gd, Lu), 37–39 Rb 7 SrRE 2 B 15 O 30 (RE = Y and Gd), 40,41 and K 21 Yb 8 B 45 O 90 42 (Table S1†). Among the related compounds mentioned above, it is worth noting that two new compounds, I and II , are very close to their iso-structural borates, Rb 7 SrRE 2 B 15 O 30 (RE = Y and Gd).…”

Anion-Centered Polyhedron Strategy for Strengthening Photon Emission Induced by Electron–Phonon Coupling

“…Herein, we synthesized eight Gd-containing borates: Gd:ScBO 3 , Gd:YAl 3 (BO 3 ) 4 , Ba 3 Gd­(B 3 O 6 ) 3 , Li 3 K 9 Gd 3 (BO 3 ) 7 , Rb 7 SrGd 2 (B 5 O 10 ) 3 , RbBaGd­(BO 3 ) 2 , GdCa 4 O­(BO 3 ) 3 (GdCOB), and Gd:Na 3 La 9 O 3 (BO 3 ) 8 (Gd:NLBO). − Their crystal structure information and fundamental properties are listed in Table S1. The former six compounds are type-I without the “free-O” motif, while the latter two compounds are type-II containing the “free-O” motif.…”

Nonlinear-Optical Crystal Rb3YB6O12 with Condensed B5O10 Blocks That Exhibits an Intriguing Structural Arrangement and a Short Ultraviolet Absorption Edge

“…Notably, the borate family K 7 MRE 2 B 15 O 30 (M = alkaline earth and Zn, Cd, and Pb; RE = rare earth and Bi) with versatile chemical compositions and a large NLO effect have been found by the Pan group since 2017. , Soon afterward, the NLO borate materials containing B 5 O 10 groups received more attention. For example, the compounds Rb 7 SrY 2 (B 5 O 10 ) 3 and Rb 7 SrGd 2 (B 5 O 10 ) 3 with interesting NLO and magnetic properties were synthesized. In 2019, the scandium-based borates K 6 ACaSc 2 (B 5 O 10 ) 3 (A = Li, Na, and Li 0.7 Na 0.3 ) with short UV cutoff edges were discovered by the Mao group.…”