Syntheses and Crystal Structures of Two New Organically Templated Borates:[(C_2H_(10)N_2)]2[B_(14)O_

• 作 者: 江晓 刘欢欣 吴淑莉 梁云霄
• 机 构: State Key Lab. Base of Novel Functional Materials and Preparation Science Faculty of Materials Scie
• 出 处: 结构化学
• 发表日期: 2009年06期
• 关键词: borate interact triclinic supramolecular bonds monoclinic inorganic anionic boro

Two new nonmetal borates, [(C2H10N2)]2[B14O20(OH)6] 1 and [C8H22N4][B5O6(OH)4]2 2, have been synthesized under mild conditions and characterized by single-crystal X-ray diffraction, FTIR, elemental analysis and thermogravimetric analysis. Crystal data for compound 1: triclinic, space group P1, a = 8.4979(17), b = 8.8498(18), c = 10.065(2) , α = 95.01(3), β = 96.99(3), γ = 116.82(3)o, V = 661.8(3)3, Z = 1, Mr = 697.63, Dc = 1.751 g/cm3, μ = 0.163 mm-1, F(000) = 356, the final R = 0.0372 and wR = 0.0968 (I > 2σ(I)); and those for compound 2: monoclinic, space group P21/c, a = 9.1867(18), b = 14.118(3), c = 10.334(2) , β = 91.48(3)o, V = 1339.8(5) 3, Z = 2, Mr = 610.46, Dc = 1.513 g/cm3, μ = 0.135 mm-1, F(000) = 632, the final R = 0.0350 and wR = 0.0912 (I > 2σ(I)). For both 1 and 2, the anionic units are interlinked via O–H···O hydrogen bonds to form a 3D supramolecular network, while the protonated cations are located in the free space of the inorganic borate framework and interact with the anions by electrostatic attraction and extensive N–H···O hydrogen bonds.

Two new nonmetal borates, [(C2H10N2)] 2 [B14O20 (OH) 6] 1 and [C8H22N4] [B5O6 (OH) 4] 2 2 have been synthesized under mild conditions and characterized by single-crystal X-ray diffraction FTIR, elemental analysis and thermogravimetric analysis. Crystal data for compound 1: triclinic, space group P1, a = 8.4979 (17), b = 8.8498 (18), c = 10.065 (2) = 96.99 (3), γ = 116.82 (3) o, V = 661.8 (3) 3, Z = 1, Mr = 697.63, Dc = 1.751 g / cm3, μ = 0.163 mm-1, 356 and the final R = 0.0372 and wR = 0.0968 (I> 2σ (I)); and those for compound 2: monoclinic, space group P21 / c, a = 9.1867 (18), b = 10.334 (2) β β = 91.48 (3) o V = 1339.8 (5) 3 Z = 2 Mr = 610.46 Dc = 1.513 g / cm3 μ = 0.135 mm- 632, the final R = 0.0350 and wR = 0.0912 (I> 2σ (I)). For both 1 and 2, the anionic units are interlinked via O-H ··· hydrogen bonds to form a 3D supramolecular network, while the protonated cations are located in the free space of the inorganic borate fr amework and interact with the anions by electrostatic attraction and extensive N-H ··· O hydrogen bonds.