Abstract
Two additive-induced isomeric aluminoborates, (CH3NH 3)2(H2O)2[Al(B5O 10)] (1) and (CH3NH3)(H2O)[Al(B 5O10)] (2), have been obtained by using small methylamine molecules as structure directing agents (SDA) under solvothermal conditions and characterized by elemental analysis, IR, TGA, powder X-ray diffraction, single-crystal X-ray diffraction, NLO determination, UV-vis spectral investigation, electronic structure calculation and ion exchange. Different arrangements of B5O10 units and AlO4 tetrahedra results in two different structures with two pairs of helical channels along [100] and [010] directions, respectively. Interestingly, the two frameworks with noncentrosymmetric and chiral space groups separately exhibit the same diamond topologies and display good second harmonic generation efficiencies of about 2.0 times the value of KDP.
Original language | English |
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Pages (from-to) | 8631-8636 |
Number of pages | 6 |
Journal | Dalton Transactions |
Volume | 39 |
Issue number | 37 |
DOIs | |
Publication status | Published - 7 Oct 2010 |