Spectroscopy — Immobilizing Redox-Active Tricycloquinazoline into a 2D Conductive Metal–Organic Framework for Lithium Storage

4 measurement groups · 7 results

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

Pristine Cu-HHTQ black powder · Powder

UV-vis spectrum measured with UV-2600 spectrophotometer; band gap from Tauc extrapolation.

Context: pristine framework
Measurement source: main p.3 / article p.24469 · Results and discussion · Figure S13

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Optical band gapMarked as a best value within this paper	1.18 eV	—	—	Text Exact Reported	main p.3 / article p.24469 · Results and discussion · Figure S13

Cu-HHTQ composite working electrode · Electrode

Cu-HHTQ electrode analysed through discharge/charge states; ion etching and scraped-powder checks.

Atmosphere: Scraped powders handled in argon atmosphere
Geometry: electrode and scraped active powder
Context: composite electrode containing pristine Cu-HHTQ active material
Measurement source: SI S20-S21 / rendered p021-p022 · 16. Ex situ characterizations of Cu-HHTQ · Figures S29-S32

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu redox during discharge/charge	Cu(II) peaks at 933.6 and 936.1 eV disappear on full discharge; Cu(I) peak at 933.5 eV appears; Cu(II) recovers on charge	—	—	Text Qualitative	main p.5 / article p.24471 · Results and discussion · Figures S30-S32
Cu-HHTQ N 1s reversible C=N/C-N change	C=N decreases and C-N increases during discharge; reverses on charge	—	—	Qualitative Qualitative	main p.5 / article p.24471 · Results and discussion · Figure S29

Pristine Cu-HHTQ black powder · Powder

Survey and high-resolution Cu 2p spectra of pristine Cu-HHTQ.

Context: pristine framework
Measurement source: main p.3 / article p.24469 · Results and discussion · Figure S10

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu 2p3/2 binding energy, main Cu(II) environment	933.2 eV	—	—	Text Exact Reported	main p.3 / article p.24469 · Results and discussion · Figure S10c
Cu 2p3/2 binding energy, weaker Cu(II) environment	935.6 eV	—	—	Text Exact Reported	main p.3 / article p.24469 · Results and discussion · Figure S10c

TQ composite working electrode · Electrode

TQ electrode analysed at pristine and charged/discharged states.

Geometry: electrode
Context: molecular pristine control electrode
Measurement source: main p.5 / article p.24471 · Results and discussion · Figure 3c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Pristine TQ C=N N 1s binding energy	398.9 eV	—	—	Text Exact Reported	main p.5 / article p.24471 · Results and discussion · Figure 3c
Pristine TQ C-N N 1s binding energy	401.3 eV	—	—	Text Exact Reported	main p.5 / article p.24471 · Results and discussion · Figure 3c