Spectroscopy — Nanopore-induced host-guest charge transfer phenomena in a metal-organic framework

Measurement evidence

Spectroscopy

Nanopore-induced host-guest charge transfer phenomena in a metal-organic framework · Yamamoto S., Pirillo J., Hijikata Y. et al. · Chemical Science · 2018 · 3282-3289

4 measurement groups · 8 results

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

Solid-state UV-vis diffuse reflectance spectroscopy

TTF plus AQDC reaction residue · Powder

Reaction residues from AQDC plus donor molecules compared with guest-impregnated Mn-MOF samples.

Geometry
solid reaction residues
Context
non-MOF model controls
Measurement source
p.7 · The confinement effect of the micropores · Fig. 5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
TMPDA plus AQDC control protonation band range400-600 nmCaption
Range
p.7 · Figure caption · Fig. 5
TTF plus AQDC control lacks CT band near 750 nmabsorption bands around 750 nm were absentText
Qualitative
p.7 · The confinement effect of the micropores · Fig. 5

Temperature-variable continuous-wave X-band EPR, JEOL JES-FA200

Compound 2 Mn-MOF 7TMPDA crystals · Single Crystal

Mn-MOF and guest crystals measured over low-temperature ranges to compare line-width broadening.

Temperature
5-80
Context
comparison of pristine Mn-MOF and compounds 1 and 2
Measurement source
p.6 · Experimental evidence of charge transfer · Fig. 4 and Fig. S11
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Mn-MOF EPR g valueg=2.03Text
Exact Reported
p.6 · Experimental evidence of charge transfer · Fig. S11
Compound 2 EPR line-width behaviouronly slightly broadened below Tc; miniscule compared with Mn-MOF and 1Text
Qualitative
p.7 · Experimental evidence of charge transfer · Fig. 4

Raman spectroscopy, Photon Design RSM-310

Compound 1 Mn-MOF 5TTF crystals · Single Crystal

Excitation laser wavelength 1064 nm; Mn-MOF, TTF and compound 1 compared.

Context
guest-loaded target sample versus controls
Measurement source
SI p.13 · S10. Raman spectrum · Fig. S12
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Compound 1 C=C Raman stretch1512 cm-1Caption
Exact Reported
SI p.13 · S10. Raman spectrum · Fig. S12
TTF C=C Raman stretch1514 cm-1Caption
Exact Reported
SI p.13 · S10. Raman spectrum · Fig. S12

Solid-state UV-vis-NIR diffuse reflectance spectroscopy, JASCO V-570

Compound 1 Mn-MOF 5TTF crystals · Single Crystal

Mn-MOF, donor molecules and guest-loaded crystals measured from 200-1400 nm; guest crystals mixed with BaSO4 1:10 by weight.

Geometry
BaSO4-diluted crystal powder
Context
comparison of pristine Mn-MOF, free donors, compound 1 and compound 2
Measurement source
p.4 · Physical measurements · Fig. 3
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Compound 1 charge-transfer band740 nmText
Rounded Reported
p.6 · Experimental evidence of charge transfer · Fig. 3
Compound 2 charge-transfer band790 nmText
Rounded Reported
p.6 · Experimental evidence of charge transfer · Fig. 3