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Abstract:
Two novel 3-D oxalate-containing bismuth compounds of formula (C3N2H5)2 [Bi2(C2O4)4(H2O)2]·2H2O 1 and [NH(C2H5)3][Bi3(C2O4)5] 2 were obtained by hydrothermal synthesis and characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in the monoclinic P2/n space group with a = 9.7541 (13) Å, b = 17.7404 (15) Å, c = 14.6321 (6) Å, β = 97.280 (3) °, Z = 4, R1 = 0.0340 and w R2 = 0.0766 for unique 4734 reflections I > 2 σ (I). Compound 2 belongs to the orthorhombic Pbcn space group with a = 14.803 (4) Å, b = 19.783 (7) Å, c = 8.202 (2) Å, Z = 4, R1 = 0.0222 and w R2 = 0.0568 for unique 2472 reflections I > 2 σ (I). The BiIII centers have nine-fold coordination for 1 and eight-fold for 2 with the Bi atoms in distorted monocapped square antiprism and distorted dodecahedron, respectively. And oxalate ligands adopt different coordination modes: bidentate for 1, bidentate and tricoordinate for 2. Compounds 1 and 2 are both 3-D open-framework structures containing channels with guest molecules. These two compounds exhibit intense blue luminescence with the emission peaks at 419 nm for 1 and 442 nm for 2, respectively, in the solid state at room temperature. These compounds with novel structural frameworks could be useful in the field of photoactive materials. © 2006 Elsevier Inc. All rights reserved.
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Journal of Solid State Chemistry
ISSN: 0022-4596
Year: 2006
Issue: 10
Volume: 179
Page: 3095-3100
2 . 1 0 7
JCR@2006
3 . 2 0 0
JCR@2023
JCR Journal Grade:2
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30 Days PV: 2
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