Spectroscopy — Synthesis of Stable 2D Conductive Lanthanide Organic Frameworks (Lu-HHTP) for High-Performance Humidity Sensors

3 measurement groups · 15 results

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

Lu-HHTP black powder · Powder

Pressed KBr pellets, 400-4000 cm-1 at room temperature; compared Lu-HHTP with HHTP ligand

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
C=O FTIR peak indicating partial oxidation	around 1640 cm-1	—	around	Text Approximate	2 · Results and Discussion - Synthesis and Characterization · Figure 2A
C=C bending vibration FTIR region	1440-1450 cm-1	—	range	Text Range	2 · Results and Discussion - Synthesis and Characterization · Figure 2A
HHTP C-OH FTIR peak	around 1000 cm-1	—	around	Text Approximate	2 · Results and Discussion - Synthesis and Characterization · Figure 2A
Lu-O stretching vibration, HHTP oxygen	538 cm-1	—	—	Text Exact Reported	2 · Results and Discussion - Synthesis and Characterization · Figure 2A
Lu-O stretching vibration, water oxygen	685 cm-1	—	—	Text Exact Reported	2 · Results and Discussion - Synthesis and Characterization · Figure 2A
HHTP O-H FTIR stretching region	3000-3600 cm-1	—	range	Text Range	2 · Results and Discussion - Synthesis and Characterization · Figure 2A

Lu-HHTP after water or humidity exposure · Powder

High-resolution O 1s XPS spectra compared before and after 95% RH humidity sensing experiment

Temperature: 298
Atmosphere: 95% RH humidity exposure
Context: pristine Lu-HHTP after humidity sensing
Measurement source: 4 · Results and Discussion - humidity sensing mechanisms · Figure S7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
O 1s shift after humidity sensing	shifted towards a higher energy state after testing in 95% humidity	—	—	Text Qualitative	4 · Results and Discussion - humidity sensing mechanisms · Figure S7

Lu-HHTP black powder · Powder

Lu 4d, C 1s and O 1s high-resolution spectra and full XPS survey

Context: pristine Lu-HHTP powder
Measurement source: 3 · Results and Discussion - Synthesis and Characterization · Figure 2D-F; Figure S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
C 1s C=O binding energy	288.5 eV	—	—	Text Exact Reported	3 · Results and Discussion - Synthesis and Characterization · Figure 2D
C 1s C-O binding energy	286.0 eV	—	—	Text Exact Reported	3 · Results and Discussion - Synthesis and Characterization · Figure 2D
C 1s C=C/C-C binding energy	284.6 eV	—	—	Text Exact Reported	3 · Results and Discussion - Synthesis and Characterization · Figure 2D
Lu 4d3 binding energy	197.3 eV	—	—	Text Exact Reported	3 · Results and Discussion - Synthesis and Characterization · Figure 2D
Lu 4d5 binding energy	207.1 eV	—	—	Text Exact Reported	3 · Results and Discussion - Synthesis and Characterization · Figure 2D
O 1s C=O binding energy	533.1 eV	—	—	Text Exact Reported	3 · Results and Discussion - Synthesis and Characterization · Figure 2D
O 1s C-O binding energy	531.5 eV	—	—	Text Exact Reported	3 · Results and Discussion - Synthesis and Characterization · Figure 2D
*O 1s pi-pi binding energy**	536.2 eV	—	—	Text Exact Reported	3 · Results and Discussion - Synthesis and Characterization · Figure 2D