Electrochemistry Application — Probing charge transfer characteristics in a donor-acceptor metal-organic framework by Raman spectroelectrochemistry and pressure-dependence studies

3 measurement groups · 13 results

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

cyclic voltammetry of ligand controls

Voltammetry

solid DPNI · Powder

DPNI solid-state and H4TTFTC solution-state (0.03 mM) in 0.2 M LiClO4/ethylene glycol; potentials vs Fc0/+.

Atmosphere: supporting electrolyte degassed with high purity Ar
Geometry: standard three-electrode configuration
Context: ligand controls
Measurement source: SI p007 · Cyclic Voltammetry · Fig. S8a-b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
DPNI reduction R1 potential	approximately -0.70 V vs Fc0/+	—	visual estimate from plot	Figure Axis Approximate	SI p007 · Figure S8 caption · Fig. S8a
DPNI reduction R2 potential	approximately -1.13 V vs Fc0/+	—	visual estimate from plot	Figure Axis Approximate	SI p007 · Figure S8 caption · Fig. S8a
H4TTFTC oxidation O1 potential	approximately 0.23 V vs Fc0/+	—	visual estimate from plot	Figure Axis Approximate	SI p007 · Figure S8 caption · Fig. S8b
H4TTFTC oxidation O2 potential	approximately 0.55 V vs Fc0/+	—	visual estimate from plot	Figure Axis Approximate	SI p007 · Figure S8 caption · Fig. S8b

solid-state cyclic voltammetry

Voltammetry

solid-state [(Zn(DMF))2(TTFTC)(DPNI)] CV electrode · Electrode

0.2 M LiClO4/ethylene glycol; scan rates 50, 100 and 200 mV s^-1; potentials vs Fc0/+; powder confined on electrode.

Atmosphere: supporting electrolyte degassed with high purity Ar
Geometry: standard three-electrode configuration
Context: pristine framework
Measurement source: SI p007 · Cyclic Voltammetry · Fig. S8c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
MOF oxidation O1 potential	approximately 0.05 V vs Fc0/+	—	visual estimate from plot	Figure Axis Approximate	SI p007 · Figure S8 caption · Fig. S8c
MOF oxidation O2 potential	approximately 0.35 V vs Fc0/+	—	visual estimate from plot	Figure Axis Approximate	SI p007 · Figure S8 caption · Fig. S8c
MOF reduction R1 potential	approximately -0.55 V vs Fc0/+	—	visual estimate from plot	Figure Axis Approximate	SI p007 · Figure S8 caption · Fig. S8c
MOF reduction R2 potential	approximately -0.95 V vs Fc0/+	—	visual estimate from plot	Figure Axis Approximate	SI p007 · Figure S8 caption · Fig. S8c
MOF reduction R3 potential	approximately -1.28 V vs Fc0/+	—	visual estimate from plot	Figure Axis Approximate	SI p007 · Figure S8 caption · Fig. S8c

in situ solid-state Raman spectroelectrochemistry

Raman spectroscopy

[(Zn(DMF))2(TTFTC)(DPNI)] powder on DS-150 screen-printed electrode · Electrode

DS-150 screen-printed electrode; 0.2 M LiClO4/ethylene glycol; 785 nm laser; 150-2000 cm^-1; 120 s exposure; 5% laser power; potentials increased in small increments.

Geometry: powder on glassy carbon working electrode with Pt counter and Ag reference
Context: pristine framework on electrode
Measurement source: p003-p005 / journal pages 25774-25776 · In situ solid state Raman spectroelectrochemistry · Fig. 3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Raman SEC oxidation reversibility	starting spectrum not recovered after returning to 0 V	—	—	Text Qualitative	p005 / journal page 25776 · In situ Raman spectroelectrochemistry · Fig. S8
anodic potential inducing SEC spectral change	0.4 V	—	—	Text Exact Reported	p005 / journal page 25776 · In situ Raman spectroelectrochemistry · Fig. 3
TTFTC0 peak decreasing during oxidation	1521 cm^-1	—	—	Text Exact Reported	p005 / journal page 25776 · In situ Raman spectroelectrochemistry · Fig. 3
TTFTC0 peak decreasing during oxidation	477 cm^-1	—	—	Text Exact Reported	p005 / journal page 25776 · In situ Raman spectroelectrochemistry · Fig. 3