A New 2D Layered Barium Coordination Polymer [Ba(3-NPA)](n): Synthesis, Crystal Structure, Thermal Stability and Luminescent Properties

作者：Wang Peng Fei^*; Tao Xiao Lin; Wang Jin Ling; Wu Guo Zhi; Wang Xin

来源：Chinese Journal of Structural Chemistry, 2014, 33(3): 339-344.

• barium(II) compound
• crystal structure
• multicarboxylate ligand
• luminescence

A new two-dimensional (2D) barium(II) coordination polymer [Ba(3-NPA)](n) (1) has been obtained by the hydro/solvothermal reaction of the corresponding metal salt with 3-nitrophthalic acid (3-NPAH(2)). Compound 1 was characterized by infrared spectrum, elemental analysis, powder X-ray diffraction (PXRD) and single-crystal X-ray diffraction analysis. Compound 1 crystallizes in triclinic, space group P (1) over bar with a = 4.9611(3), b = 7.2599(4), c = 12.9463(8) angstrom, alpha = 89.0892(2), beta = 80.546(2), gamma = 73.211 (2)degrees, V = 440.1(5) angstrom(3), Z = 2, C8H3BaNO6, M-r = 346.45, D-c = 2.614 g.cm(-3), mu = 4.526 mm(-1), S = 1.035, F(000) = 324, R = 0.0168 and wR= 0.0471 for 1712 observed reflections with I > 2 sigma(I). (Delta rho)(max) = 0.458, (Delta rho)(min) = -0.565 e.angstrom(-3) and (Delta/sigma)(max) = 0.001. In compound 1, each 3-NPA(2-) ligand links six Ba(II) ions and each Ba(II) ion attaches to six 3-NPA2- ligands to form an inorganic layer structure in the ab-plane. The phenyl groups of 3-NPA(2-) ligands are grafted on the two sides of the inorganic layer, resulting in a two-dimensional (2D) layered structure. Furthermore, the thermal stability and luminescent properties of compound 1 have also been investigated in detail.

• 出版日期2014
• 单位池州学院