Self-assembly of a binodal metal-organic framework exhibiting a demi-regular lattice

Research output: Contribution to journalArticle

Researchers

  • Linghao Yan

  • Guowen Kuang
  • Qiushi Zhang
  • Xuesong Shang
  • Pei Nian Liu
  • Nian Lin

Research units

  • Hong Kong University of Science and Technology
  • East China University of Science and Technology

Abstract

Designing metal-organic frameworks with new topologies is a long-standing quest because new topologies often accompany new properties and functions. Here we report that 1,3,5-tris[4-(pyridin-4-yl)phenyl]benzene molecules coordinate with Cu atoms to form a two-dimensional framework in which Cu adatoms form a nanometer-scale demi-regular lattice. The lattice is articulated by perfectly arranged twofold and threefold pyridyl-Cu coordination motifs in a ratio of 1:6 and features local dodecagonal symmetry. This structure is thermodynamically robust and emerges solely when the molecular density is at a critical value. In comparison, we present three framework structures that consist of semi-regular and regular lattices of Cu atoms self-assembled out of 1,3,5-tris[4-(pyridin-4-yl)phenyl]benzene and trispyridylbenzene molecules. Thus a family of regular, semi-regular and demi-regular lattices can be achieved by Cu-pyridyl coordination.

Details

Original languageEnglish
Pages (from-to)111-121
Number of pages11
JournalFaraday Discussions
Volume204
Publication statusPublished - 1 Jan 2017
MoE publication typeA1 Journal article-refereed

ID: 38326481