Spectroscopy — Mimicking the Electron Transport Chain and Active Site of [FeFe] Hydrogenases in One Metal-Organic Framework: Factors That Influence Charge Transport

Measurement evidence

Spectroscopy

Mimicking the Electron Transport Chain and Active Site of [FeFe] Hydrogenases in One Metal-Organic Framework: Factors That Influence Charge Transport · Castner A.T., Johnson B.A., Cohen S.M. et al. · Journal of the American Chemical Society · 2021 · 7991-7999

3 measurement groups · 10 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

ATR-FTIR spectroscopy

PCN-700_NDI_FeFe powder · Powder

Room-temperature ATR-FTIR from 4000 to 650 cm-1 used to verify introduced linker signatures in PCN-700 materials.

Context
pristine and guest-loaded MOF powders
Measurement source
p003 / article p.7993 · Synthesis and Characterization · Figure 2a
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
FeFe carbonyl stretch peaks in PCN-700_NDI_FeFe2077, 2041, and 2000 cm-1Text
Rounded Reported
p004 / article p.7994 · Synthesis and Characterization · Figure 2a
NDI imide C-N stretch in PCN-700_NDIapproximately 1334 cm-1Text
Approximate
p003 / article p.7993 · Synthesis and Characterization · Figure 2a
NDI imide C=O stretch in PCN-700_NDI1705 cm-1Text
Rounded Reported
p003 / article p.7993 · Synthesis and Characterization · Figure 2a
ta diagnostic ATR-FTIR feature in PCN-700_NDI_ta1506 cm-1Text
Rounded Reported
p003 / article p.7993 · Synthesis and Characterization · Figure 2a

ICP-OES metal analysis

PCN-700_NDI_FeFe powder · Powder

Approximately 5 mg MOF digested in 4:1 69% HNO3:30% H2O2, microwave 10 min at 160 C, diluted to 5 mL and syringe filtered.

Context
target guest-loaded powder
Measurement source
p012 / SI p.12 · Digestion of PCN-700_NDI_FeFe for ICP-OES
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
PCN-700_NDI_FeFe active-site model occupancy65-78% of total linker vacant sites65-78%Text
Range
p004 / article p.7994 · Synthesis and Characterization

1H NMR of digested MOF samples

PCN-700_NDI_ta powder · Powder

Approximately 5 mg MOF digested in 0.55 mL DMSO-d6 plus 0.05 mL 35% DCl in D2O and sonicated at least 20 min.

Temperature
293
Context
guest-loaded powder composition
Measurement source
p012 / SI p.12 · 1H NMR of digested MOF samples · Figures S9-S11, Table S1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
PCN-700_NDI NDI incorporation yield78%Text
Rounded Reported
p003 / article p.7993 · Synthesis and Characterization · Figure S10, Table S1
PCN-700_NDI Me2dpdc:NDI linker ratioapproximately 8:1.56Text
Approximate
p003 / article p.7993 · Synthesis and Characterization · Figure S10, Table S1
PCN-700_NDI_ta NDI occupancy of vacant sites76%Text
Rounded Reported
p003 / article p.7993 · Synthesis and Characterization · Figure S11, Table S1
PCN-700_NDI_ta Me2dpdc:NDI:ta linker ratioapproximately 8:1.52:1.8Text
Approximate
p003 / article p.7993 · Synthesis and Characterization · Figure S11, Table S1
PCN-700_NDI_ta ta occupancy90%Text
Rounded Reported
p003 / article p.7993 · Synthesis and Characterization · Figure S11, Table S1