New tartratoborates: Synthesis, structure, and characterization of non-centrosymmetric ASr[C4H2O6B(OH) 2]·4H2O (A = K+, Rb+)

Xiaoyun Fan, Shilie Pan, Jing Guo, Xueling Hou, Jian Han, Fangfang Zhang, Feng Li, Kenneth R. Poeppelmeier

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Abstract

Two new tartratoborate nonlinear optical materials, KSr[C4H 2O6B(OH)2]·4H2O (KSCB) and RbSr[C4H2O6B(OH)2]·4H 2O (RSCB), have been prepared through slow evaporation at room temperature. Single-crystal X-ray diffraction data reveal that KSCB crystallizes in the triclinic system, space group P1 (no. 1). It consists of KO8 polyhedra, SrO9 polyhedra, BO4 tetrahedra, tartrate molecules and H2O molecules. The isolated tartratoborate anions are connected to form a three-dimensional network structure by sharing oxygen atoms with K+ and Sr2+. The structural data show that KSCB and RSCB are isostructural and noncentrosymmetric. KSCB and RSCB produce second-harmonic generation intensities of 1.5 × KH2PO 4 and 1.7 × KH2PO4, respectively, and they are both type I phase-matchable. The UV-Vis diffuse reflectance spectra of these compounds indicate that they are both transparent from 250 to 850 nm. Related infrared spectra and thermal analyses were also performed.

Original languageEnglish
Pages (from-to)10389-10394
Number of pages6
JournalJournal of Materials Chemistry A
Volume1
Issue number35
DOIs
Publication statusPublished - Sep 21 2013

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ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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