cMOF Evidence Base
Other — Phosphonate Metal–Organic Frameworks: A Novel Family of Semiconductors

Measurement evidence

Other

Phosphonate Metal–Organic Frameworks: A Novel Family of Semiconductors · Siemensmeyer K., Peeples C.A., Tholen P. et al. · Advanced Materials · 2020 · 2000474

2 measurement groups · 9 results

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

VSM-SQUID magnetometry.

Magnetometry and magnetic susceptibility

Hand-picked TUB75 crystals · Single Crystal

2.57 mg hand-picked TUB75 crystals, equivalent to 6.06 umol Cu ions; magnetic fields 50 mT to 7 T; temperatures 2 K to 380 K; diamagnetic background measured with empty capsule at 1 T and 5 T.

Temperature
2-380
Geometry
standard Quantum Design SQUID measurement capsule
Context
pristine TUB75 crystals
Measurement source
3 · Magnetization measurements · Figure 4
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
fraction of Cu2+ ions contributing to high-temperature paramagnetic signal80%80 %—Text
Exact Reported		6 · Magnetic susceptibility fitting
Curie temperature from Curie-Weiss fitTC = 25 K25 K—Text
Exact Reported		6 · Magnetic susceptibility fitting · Figure 4C
dimer-chain JchainJchain = -2.6 K-2.6 K—Text
Exact Reported		6 · Magnetic susceptibility fitting
dimer-chain JdimerJdimer = 54 K54 K—Text
Exact Reported		6 · Magnetic susceptibility fitting
Heisenberg-chain JchainMarked as a best value within this paperJchain = 16.8 K16.8 K—Text
Exact Reported		5 · Magnetic susceptibility fitting
Heisenberg-chain inter-chain interaction J primeMarked as a best value within this paperJ' = -22 K-22 K—Text
Exact Reported		5 · Magnetic susceptibility fitting
Neel temperatureMarked as a best value within this paperT approximately 30 K30 K—Text
Approximate		3 · main text · Figure 4A
paramagnetic impurity contentapproximately 8%8 %—Text
Approximate		4 · main text · Figure 4B

Thermal decomposition behaviour cited from previous work on this phosphonate MOF family.

Hand-picked TUB75 crystals · Single Crystal

Thermal decomposition patterns previously reported for phosphonate MOFs constructed using 4,4'-bipyridine as auxiliary linker.

Context
phosphonate MOF family including TUB75
Measurement source
2 · main text
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
thermal stability before decomposition for related phosphonate MOFsapproximately 375 C648.15 K—Text
Approximate		2 · main text