Crystal Structures of a Series of 1,1-Spiro-bis(1,2,3,4-tetrahydronaphthalene)-Based Derivatives
作者:Mariolino Carta、Madeleine Helliwell、Neil B. McKeown
DOI:10.1007/s10870-011-0211-7
日期:2012.2
The structures of four spirobisnaphthalenes based monomers 1, 2, 3a and 3b are reported. Each compound represents a methoxylated precursor which after deprotection led to the formation of a monomer successfully used for the synthesis of Polymers of intrinsic microporosity. The spiro-centre represents the site of contortion that, since its rigidity, leads to inefficient packing in the solid state inducing microporosity in the final polymer. Compound 1 crystallized in the monoclinic P2/c space group with unit cell parameters a = 8.1659(19) Å, b = 7.5298(18) Å, c = 19.130(5) Å, β = 97.935(4)°, V = 1165.0(5) Å3, Z = 2, D = 1.210 Mg m−3. Compound 2 crystallized in the monoclinic P21/n space group with unit cell parameters a = 12.6940(9) Å, b = 7.7267(6) Å, c = 19.9754(15) Å, β = 97.220(1)°, V = 1943.7(3) Å3, Z = 4, D = 1.355 Mg m−3. Compound 3a crystallized in the monoclinic P21/c space group with unit cell parameters a = 16.8137(14) Å, b = 10.5577(9) Å, c = 31.344(3) Å, β = 103.618(1)°, V = 5407.5(8) Å3, Z = 8, D = 1.308 Mg m−3. Compound 3b crystallized in the monoclinic Pc space group with unit cell parameters a = 15.594 Å, b = 12.564 Å, c = 18.339 Å, β = 90.224(1)°, V = 3593.0 Å3, Z = 4, D = 1.236 Mg m−3. This paper describes the crystal structure of four spiro-bis(1,2,3,4-tetrahydronaphthalene)-based derivatives—that serve as precursors polymers of intrinsic microporosity and provide the important site of contortion within fused-ring structures.
报告了四种螺双萘类单体 1、2、3a 和 3b 的结构。每种化合物都是甲氧基化的前体,经过脱保护后形成的单体可成功用于合成具有内在微孔的聚合物。螺环中心是变形的部位,由于其刚性,导致固态包装效率低下,从而在最终聚合物中产生微孔。化合物 1 在单斜 P2/c 空间群中结晶,单胞参数 a = 8.1659(19) Å, b = 7.5298(18) Å, c = 19.130(5) Å, β = 97.935(4)°, V = 1165.0(5) Å3, Z = 2, D = 1.210 Mg m−3.化合物 2 在单斜 P21/n 空间群中结晶,单胞参数 a = 12.6940(9) Å, b = 7.7267(6) Å, c = 19.9754(15) Å, β = 97.220(1)°, V = 1943.7(3) Å3, Z = 4, D = 1.355 Mg m−3.化合物 3a 在单斜 P21/c 空间群中结晶,单胞参数 a = 16.8137(14) Å, b = 10.5577(9) Å, c = 31.344(3) Å, β = 103.618(1)°, V = 5407.5(8) Å3, Z = 8, D = 1.308 Mg m−3.化合物 3b 在单斜 Pc 空间群中结晶,单胞参数 a = 15.594 Å, b = 12.564 Å, c = 18.339 Å, β = 90.224(1)°, V = 3593.0 Å3, Z = 4, D = 1.236 Mg m−3.本文描述了四种螺双(1,2,3,4-四氢萘基)衍生物的晶体结构,这些衍生物可作为具有内在微孔的聚合物前体,并为融合环结构提供了重要的变形部位。