Spectroscopy — Stable organic radical stacked by in situ coordination to rare earth cations in MOF materials

Measurement evidence

Spectroscopy

Stable organic radical stacked by in situ coordination to rare earth cations in MOF materials · Gandara F., Snejko N., Andres A.D. et al. · RSC Advances · 2012 · 949-955

2 measurement groups · 5 results

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

FTIR spectroscopy on KBr pellets using FTIR Nicolet Magna-550

Infrared spectroscopy

La-RPF8 bulk powder/crystals · Powder

IR spectra recorded in 4000-400 cm-1 region; La-RPF8 spectrum shown in SI.

Geometry: KBr pellet
Context: pristine La-RPF8
Measurement source: p002-p003 / journal pp.950-951 · UV-vis and IR measurements; Results · Fig. S1.1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
coordinated CO stretch band	ca. 1430 cm^-1	—	approximately	Text Approximate	p003 / journal p.951 · Results and discussions · Fig. S1.1
coordinated CO stretch band	1520 cm^-1	—	—	Text Rounded Reported	p003 / journal p.951 · Results and discussions · Fig. S1.1

UV-vis-NIR diffuse-reflectance/absorbance spectroscopy using Shimadzu UV-2401 PC; samples dispersed in BaSO4

UV-visible and optical absorption spectroscopy

La-RPF8 bulk powder/crystals · Powder

Powder absorption spectra recorded from 200 to 900 nm at room temperature and compared with Na2AQDS.

Temperature: room temperature
Geometry: powder dispersed in BaSO4
Context: pristine La-RPF8 compared with Na2AQDS powder control
Measurement source: p002 and p006 / journal pp.950,954 · UV-vis and IR measurements; optical discussion · Fig. 6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
photoluminescence emission	no emission band observed from organic part or rare-earth 4f transitions	—	—	Text Qualitative	p006 / journal p.954 · Optical discussion
optical gap upper bound from 900 nm range	gap energy lower than 1.38 eV (900 nm)	—	less than	Text Approximate	p006 / journal p.954 · Optical discussion · Fig. 6
broad NIR absorption transition	around 800 nm	—	around	Text Approximate	p006 / journal p.954 · Optical discussion · Fig. 6