LAUSR

Abstract Two unusual organic templated borates, [Al(C 3 H 12 N 2 )(C 2 H 7 N)]·[B 5 O 10 ] ( 1 ) and [Zn(HCOO)(1,2-dap) 2 ]·[B 5 O 7 (OH) 4 ] ( 2 ) were synthesized under solvothermal conditions ([HCOO] −  = formic ion; 1,2-dap = 1,2-diaminopropane). The obtained 1 and 2 borates were characterized by using elemental analysis, FTIR, PXRD, TG, and single-crystal X-ray diffraction. 1 crystallizes in the Pbca space group and shows a 3D anionic framework based on AlO 4 and B 5 O 10 clusters. Interestingly, there are two kinds of organic amines in the structure: one was 1, 2-dap, while the other was ethylamine from the in situ reaction of 1,2-dap. 2 crystallizes in the P -1 space group, and consists of a [Zn(HCOO)(1,2-dap) 2 ] + cation and [B 5 O 6 (OH) 4 ] − polyanion, the presence of [HCOO] − suggests the in situ decomposition of DMF (DMF = N, N-Dimethylformamide).