Han Lei, Xu Lan-Ping, Zhao Wen-Na
Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China.
Acta Crystallogr C. 2011 Jul;67(Pt 7):m227-9. doi: 10.1107/S0108270111022566. Epub 2011 Jun 17.
The amino-functionalized helical chiral one-dimensional coordination polymer catena-poly[[bis(pyridine-κN)zinc(II)]-μ-2-aminobenzene-1,4-dicarboxylato-κ(4)O(1),O(1'):O(4),O(4')], Zn(C(8)H(5)NO(4))(C(5)H(5)N)(2), has an extended structure that is assembled from 2-aminobenzene-1,4-dicarboxylate anions and Zn(2+) cations and which presents a left-handed 4(3) helix with a pitch of 25.6975 (9) Å. All the pyridine rings and all the amino groups point away from the helix to generate a hollow tube with a cross-section of approximately 8 × 8 Å running parallel to the crystallographic c direction. Each single-stranded helix is interdigitated with four neighbouring helices via N-H···O hydrogen bonds, which gives rise to a dense homochiral three-dimensional supramolecular network.
氨基官能化的螺旋手性一维配位聚合物链状聚[[双（吡啶-κN）锌（II）]-μ-2-氨基苯-1,4-二羧酸根-κ（4）O（1），O（1'）：O（4），O（4'）]，[Zn（C₈H₅NO₄）（C₅H₅N）₂]ₙ，具有由2-氨基苯-1,4-二羧酸根阴离子和Zn²⁺阳离子组装而成的扩展结构，呈现出螺距为25.6975（9）Å的左手4₃螺旋。所有吡啶环和所有氨基都指向远离螺旋的方向，形成一个平行于晶体学c方向的横截面约为8×8 Å的中空管。每个单链螺旋通过N-H···O氢键与四个相邻螺旋相互穿插，形成一个密集的同手性三维超分子网络。
