Spectroscopy — Quantum spin liquid state in a two-dimensional semiconductive metal−organic framework

4 measurement groups · 6 results

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

Activated Cu3(HHTP)2 powder · Powder

Central field 300 mT and scan range 100 mT; spectra from 15 to 300 K shown.

Temperature: 15-300
Geometry: Powder EPR
Context: Pristine framework powder
Measurement source: SI p.S2 and p.S5 · S1 Experimental details; S3 EPR · Figure S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu3(HHTP)2 EPR g valueMarked as a best value within this paper	g = 2.12	—	—	Caption Exact Reported	SI p.S5 · S3 EPR · Figure S2

Activated Cu3(HHTP)2 powder · Powder

Sample and standards mixed with boron nitrite, ground, and pressed into pellets; standards were Cu2O for Cu(I) and CuSO4.5H2O for Cu(II).

Geometry: Boron nitrite pellet
Context: Pristine framework powder diluted in boron nitrite for spectroscopy
Measurement source: SI p.S2 and p.S8 · S1 Experimental details; S6 XAFS · Figure S5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu(I) cations suggested by XANES	pre-edge expansion suggested possible existence of Cu(I) cations	—	—	Caption Qualitative	SI p.S8 · S6 XAFS · Figure S5

Activated Cu3(HHTP)2 powder · Powder

Crystalline sample mounted on carbon tape; 60 scans integrated around Cu 2p.

Geometry: Powder on carbon tape
Context: Pristine framework powder
Measurement source: SI p.S2 and p.S7 · S1 Experimental details; S5 XPS · Figure S4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu mixed valency indicated by XPS	possible mix valency of Cu(I) and Cu(II)	—	—	Caption Qualitative	SI p.S7 · S5 XPS · Figure S4

Activated Zn3(HHTP)2 powder · Powder

Central field 300 mT and scan range 100 mT; spectra from 15 to 300 K shown.

Temperature: 15-300
Geometry: Powder EPR
Context: Pristine framework control powder
Measurement source: SI p.S2 and p.S5 · S1 Experimental details; S3 EPR · Figure S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Zn3(HHTP)2 organic radical g parallel	g = 2.003	—	—	Caption Exact Reported	SI p.S5 · S3 EPR · Figure S2
Zn3(HHTP)2 organic radical g perpendicular	g = 2.004	—	—	Caption Exact Reported	SI p.S5 · S3 EPR · Figure S2
Zn3(HHTP)2 radical abundance	<0.1%	—	<	Text Approximate	main p.3 · Results · Figure S2