An Ni-based coordination polymer with a bamboo-like crystal structure

Abstract

An Ni-based coordination polymer with a crystal structure reminiscent of bamboo has been synthesized, the Ni²⁺ ions exhibiting a slightly distorted octa­hedral coordination geometry with N atoms and O atoms.

An Ni-based coordination polymer, namely, poly[tetra­aqua­bis­[4,7-bis­(1H-pyrazol-4-yl)benzo[c][1,2,5]thia­diazole][μ₄-5,5′-(1,3,6,8-tetra­oxo-1,3,6,8-tetra­hydro­benzo[lmn][3,8]phenanthroline-2,7-di­yl)diisophthalato]dinickel(II)], {[Ni₂(C₃₀H₁₀N₂O₁₂)(C₁₂H₈N₆S)₂(H₂O)₄]·2C₃H₇NO·H₂O}_n or Ni-BIBT-BINDI, with a crystal structure reminiscent of bamboo has been synthesized, the Ni²⁺ ions exhibiting a slightly distorted octa­hedral coordination geometry with N atoms and O atoms. The bond lengths of the Ni—O bonds range from 2.032 to 2.121 Å, and those of the Ni—N bonds are approximately 2.080 Å. The BINDI ligands are connected to each other by the Ni—O bonds, which form the backbone of the bamboo, while the BIBT ligands are connected to the backbone of the bamboo through Ni—N bonds and grows on both sides of the bamboo, constituting the bamboo leaves.