Rb3Y2(BO3)3 with a noncentrosymmetric structure.
Trirubidium diyttrium triborate contains zigzag chains of corner-sharing [Y2O10] dimers. The chains are reinforced by one independent BO3 group and crosslinked by the other two types of BO3 groups to form a three-dimensional framework. Channels along the [100] direction accommodate the Rb+ cations.
Beijing Center for Crystal Research and Development, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, PO Box 2711, Beijing 100080, People's Republic of China.
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