A dual linker metal-organic framework demonstrating ligand-based emission for the selective detection of carbon tetrachloride

Nathan D. Rudd, Hao Wang, Simon J. Teat, Jing Li

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A novel luminescent metal-organic framework (LMOF) was synthesized through the incorporation of a molecular fluorophore and an anthracene-based colinker into a Zn-based structure. The compound crystallizes in a body-centered orthorhombic crystal system (space group: Imma). The three-dimensional porous network of Zn4(adc)4(tppe) (LMOF-271) exhibits no interpenetration and is classified as a 2-nodal, (4,6)-c net (sqc124 type) with (4-c)(6-c)2 stoichiometry. LMOF-271 contains two-dimensional sheets of paddle-wheel-type Zn-SBUs interconnected by anthracene-based colinkers, with tetradentate chromophores linking the nets together. Pristine LMOF-271 emits blue light (λem = 475 nm) upon UV excitation (λex = 365 nm). LMOF-271 selectively detects the toxic environmental contaminant carbon tetrachloride over similar volatile organic solvents, namely dichloromethane and chloroform. This work represents the first study making use of a LMOF to selectively and effectively detect carbon tetrachloride via luminescence signal change with a high KSV value of 48,903 M−1 and a detection limit of 22 ppb.

Original languageEnglish
Pages (from-to)312-317
Number of pages6
JournalInorganica Chimica Acta
Volume470
DOIs
Publication statusPublished - Jan 30 2018

Fingerprint

Carbon tetrachloride
Carbon Tetrachloride
carbon tetrachloride
Metals
Ligands
ligands
metals
Anthracene
anthracene
paddles
Fluorophores
Poisons
Methylene Chloride
Dichloromethane
Chromophores
Chloroform
Chlorine compounds
wheels
chloroform
Stoichiometry

Keywords

  • Ligand-based emission
  • Luminescent metal-organic framework
  • Stern-volmer analysis
  • VOC detection

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

A dual linker metal-organic framework demonstrating ligand-based emission for the selective detection of carbon tetrachloride. / Rudd, Nathan D.; Wang, Hao; Teat, Simon J.; Li, Jing.

In: Inorganica Chimica Acta, Vol. 470, 30.01.2018, p. 312-317.

Research output: Contribution to journalArticle

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