Enhancing Pore-Environment Complexity Using a Trapezoidal Linker: Toward Stepwise Assembly of Multivariate Quinary Metal-Organic Frameworks. Academic Article uri icon

abstract

  • Multicomponent metal-organic frameworks (MOFs) promise the precise placement of synergistic functional groups with atomic-level precision, capable of promoting fascinating developments in basic sciences and applications. However, the complexity of multicomponent systems poses a challenge to their structural design and synthesis. Herein, we show that linkers of low symmetry can bring new opportunities to the construction of multicomponent MOFs. A carbazole-tetracarboxylate linker of  C s point group symmetry was designed and combined with an 8-connected Zr6 cluster to generate a low-symmetry MOF, PCN-609. PCN-609 contains coordinatively unsaturated Zr sites arranged within a lattice with three crystallographically distinct pockets, which can accommodate linear linkers of different lengths. Sequential linker installation was carried out to postsynthetically insert three linear linkers into PCN-609, giving rise to a quinary MOF. Functionalization of each linker from the quinary MOF system creates multivariate pore environments with unprecedented complexity.

author list (cited authors)

  • Pang, J., Yuan, S., Qin, J., Wu, M., Lollar, C. T., Li, J., ... Zhou, H.

complete list of authors

  • Pang, Jiandong||Yuan, Shuai||Qin, Junsheng||Wu, Mingyan||Lollar, Christina T||Li, Jialuo||Huang, Ning||Li, Bao||Zhang, Peng||Zhou, Hong-Cai

publication date

  • January 1, 2018 11:11 AM