A Microporous Co(II)-Based 3-D Metal Organic Framework Built from Magnetic Infinite Rod-Shaped Secondary Building Units

Andreas Kourtellaris, Eleni E. Moushi, Ioannis Spanopoulos, Pantelis N. Trikalitis, Michael Pissas, Giannis S. Papaefstathiou, Yiannis Sanakis*, Anastasios J. Tasiopoulos

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The synthesis and characterization of {[Co5(INA)3(HCOO)7(DMF)(H2O)]·2DMF·4H2O} (INA = the anion of isonicotinic acid) denoted as Co5-INA·2DMF·4H2O is reported. The compound was isolated from the reaction of Co(NO3)2·6H2O with HINA in the presence of HCOOH in N,N-dimethylformamide (DMF) at 100 °C. It exhibits a rigid 3-D porous structure based on Co5 repeating units which are linked through carboxylate ligands (from HCOO and INA) to form an infinite rod-shaped secondary building unit (SBU). The rods are connected through isonicotinate ligands to produce a unique (3,3,4,4,4-coordinated) 5-nodal 3D network with point symbol (4.5.6.72.9)(4.5.62.7.8)(4.5.7)2(5.62.73). Gas sorption studies revealed that Co5-INA displays a microporous structure with BET area 264.5 m2 g–1 and CO2 uptake of 1.96/1.29 mmol·g–1 at 273/298 K (1 bar), respectively. Magnetism studies revealed that Co5-INA displays spin canting behavior with a spin glass relaxation process at ca. 5.0 K.

Original languageEnglish (US)
Pages (from-to)4056-4062
Number of pages7
JournalEuropean Journal of Inorganic Chemistry
Volume2019
Issue number38
DOIs
StatePublished - Oct 17 2019
Externally publishedYes

Keywords

  • Cobalt
  • Gas sorption studies
  • Magnetic properties
  • Metal organic frameworks
  • Structure elucidation

ASJC Scopus subject areas

  • Inorganic Chemistry

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