Optimization of Functional Building Blocks Generates a Substantial Improvement in Birefringence from Sn2OSO4 to Sn3O2(OH)(HSO4)
Yuqi Chen,
Han Luo,
Zeqiao Yin
et al.
Abstract:In this work, two tin(II)-based sulfates, Sn 2 OSO 4 and Sn 3 O 2 (OH)-(HSO 4 ), were synthesized via the mild hydrothermal method. Both compounds employ the Sn 2+ cation with stereochemically active lone pair (SCALP) electrons and non-π-conjugated tetrahedral anionic groups SO 4 as the functional structural blocks. Interestingly, the experimental birefringence of Sn 3 O 2 (OH)(HSO 4 ) is 0.169@546 nm, approximately 42 times larger than that of Sn 2 OSO 4 , which is 0.004@546 nm. Detailed structural analysis a… Show more
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