New alkali-metal bidentate borate–malate NaB(DL-C4H4O5)2 and CsB(DL-C4H4O5)2⋅H2O: Effect of cations on the framework structures and macroscopic centricities
- Resource Type
- Authors
- Na Tian; Yihe Zhang; Chuangtian Chen; Wenjiao Yao; Ying He; Hongwei Huang; Zheshuai Lin
- Source
- Journal of Alloys and Compounds. 582:374-379
- Subject
- Thermogravimetric analysis
Chemistry
Mechanical Engineering
Metals and Alloys
Space group
Infrared spectroscopy
Crystal structure
Alkali metal
Crystallography
Mechanics of Materials
Materials Chemistry
Single crystal
Structural unit
Stoichiometry
- Language
- ISSN
- 0925-8388
Two new alkali-metal bidenate borate–malate NaB(DL-C4H4O5)2 and CsB(DL-C4H4O5)2⋅H2O have been grown by the facile slow evaporation method through the introduction of acetone as solvent. The crystal structures were determined by single crystal X-ray diffraction. The stoichiometrically equivalent materials crystallize in three-dimensional framework structures and have the same structural unit [B(C4H4O5)2]−. However, both crystals exhibit very diverse framework geometries attributable to the size of the alkali-metal cations, which also leads to the different space groups and macroscopic centricities as proven by SHG test. The noncentrosymmetric NaB(DL-C4H4O5)2 was found to exhibit phase-matchable NLO intensity as high as two times that of KDP standard and a short-wavelength absorption onset at 220 nm. Moreover, both crystals have also been characterized by Infrared spectroscopy and thermogravimetric analysis.