Gandara F., Snejko N., Andres A.D. et al. · RSC Advances · 2012 · 949-955
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
The article/SI CCDC range 728638-72641 contains an error; the later correction states the correct CCDC numbers are 728638-728641.
Caveat: The correction is a separate text-only supplied document, not a data table.
text correction · Additions and corrections
The AQDS ligand in RPF8 is assigned as an AQDS3- anion radical based on elemental/electroneutrality evidence, absence of residual neutralising atoms, semiquinone bond-length changes, IR bands, and La-RPF8 paramagnetism.
Caveat: Magnetic moment is lower than one unpaired electron and authors attribute this to dimerisation/spin quenching; spectroscopy/structure provide stronger evidence.
p001 and p007 / journal pp.949,955 · Abstract; Conclusion · Table 2; Fig. 3 · Linked to 5 structured results
RPF8 is a pristine 2D lanthanide MOF family in which in situ formed AQDS3- semiquinone radicals pi-stack along the framework, giving measurable room-temperature single-crystal conductivity and high SCLC mobility.
Caveat: Transport was reported only for La-RPF8 single crystals, not every lanthanide member.
p006-p007 / journal pp.954-955 · Transport discussion; Conclusion · Fig. 5 · Linked to 4 structured results
Pure RPF8 formation requires water plus n-butanol, an AQDS/Ln ratio of 2, and a rare-earth cation; no rare earth gives sodium AQDS salt and Co/Fe controls give non-radical AQDS2- frameworks.
Caveat: Optimisation experiments are described qualitatively; full product analyses for failed/variant syntheses are not tabulated.
p003 / journal p.951 · Results and discussions · Linked to 1 structured result
La-RPF8 behaves as a small-gap semiconductor with ohmic low-voltage contacts and SCLC-like V^2 current at high voltages; carriers are probably electrons but holes cannot be ruled out.
Caveat: Carrier type is inferred from energy levels; mobility is a lower-limit estimate and injection barriers/traps were not fully treated.
p006-p007 / journal pp.954-955 · Transport/optical discussion · Fig. 5; Fig. 6 · Linked to 5 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| La-RPF7 non-semiquinone control framework | La framework with 2,6-AQDS; exact formula not reported in this paperLa3+ cations · 2,6-anthraquinone disulfonate without semiquinone radical | unknown · PristinePreviously reported polymeric framework used as a non-radical magnetic control. | p005 / journal p.953 · Magnetic properties · Fig. 3 |
| Lanthanide RPF8 semiquinone radical MOF family | C14H12O11S2Ln; equivalent to LnL(H2O)3 where L = 1,5-AQDS3- and Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, ErOcta-coordinated rare-earth cations Ln3+ (La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er) · in situ reduced anthraquinone-1,5-disulfonate semiquinone radical (1,5-AQDS3-) | 2D · PristineOrthorhombic P21212 lanthanide coordination framework; Ln zig-zag chains bridged by sulfonate groups are joined by AQDS radicals into double layers with 6^3 honeycomb topology and face-to-face pi-stacked AQDS columns along c. | p003-p004 / journal pp.951-952 · Crystal structure description · Fig. 1; Fig. 2 |
| sodium anthraquinone-1,5-disulfonate control | Na2AQDSNa+ counterions; no framework metal node in the reagent/control · fully oxidised anthraquinone-1,5-disulfonate dianion AQDS2- | 0D · UnknownMolecular/salt control used for synthesis, UV-vis comparison, and no-rare-earth synthesis experiment. | p001 and p006 / journal pp.949,954 · Experimental section; transport/optical discussion · Fig. 6 |
| Co-AQDS and Fe-AQDS non-radical coordination-polymer controls | M-AQDS control frameworks, M = Co or Fe; exact formula not reported in this paperCo2+ or Fe2+ cations hexacoordinated to two water molecules and four sulfonate O atoms · anthraquinone-1,5-disulfonate dianion AQDS2- | unknown · PristineTransition-metal structural controls with AQDS2- dianions and no radical species. | p003 / journal p.951 · Results and discussions |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Co-AQDS and Fe-AQDS transition-metal control productsresearch_0639__mat__mat_transition_m_aqds_controls | Powder · Pristine Control · Pristine Framework | Prepared from CoCl2 or FeCl2 using a molar composition equivalent to the rare-earth optimised mixture. | p003 / journal p.951 · Results and discussions · Table 2 |
| Dy-RPF8 powder for variable-field magnetisationresearch_0639__mat__mat_lnrpf8_family | Powder · Target Sample · Pristine Framework | Powder sample sealed in capsule for magnetic measurements; PPMS used for low-temperature high-field tests.typically 20 mg powder in diamagnetic polycarbonate capsule for SQUID measurements | p002 / journal p.950 · Magnetic measurements · Fig. 4; Fig. S4-3 |
| La-RPF7 non-radical magnetic controlresearch_0639__mat__mat_la_rpf7_control | Powder · Pristine Control · Pristine Framework | Previously synthesised La framework with 2,6-AQDS and no radical species. | p005 / journal p.953 · Magnetic properties · Fig. 3 |
| La-RPF8 bulk powder/crystalsresearch_0639__mat__mat_lnrpf8_family | Powder · Target Sample · Pristine Framework | Filtered, washed with deionised water and acetone, and dried in air after solvothermal synthesis. | p001 / journal p.949 · Experimental section |
| La-RPF8 single crystal for electrical transportresearch_0639__mat__mat_lnrpf8_family | Single Crystal · Target Sample · Pristine Framework | Dark La-RPF8 crystal contacted at both ends with silver paste to gold electrodes.gold electrodes contacted with silver paste · 0.420 x 0.055 x 0.055 mm crystal; current along longer dimension / stacking direction (001) | p006 / journal p.954 · Transport discussion · Fig. 5 |
| Pr-, Nd-, Sm-, Eu-, Gd-, Tb-, Dy-, Ho- and Er-RPF8 bulk powdersresearch_0639__mat__mat_lnrpf8_family | Powder · Target Sample · Pristine Framework | Prepared by the same solvothermal procedure as La-RPF8 using the corresponding rare-earth nitrate salts. | p001-p002 / journal pp.949-950 · Experimental section |
| La-, Pr-, Sm- and Gd-RPF8 single crystals for X-ray diffractionresearch_0639__mat__mat_lnrpf8_family | Single Crystal · Target Sample · Pristine Framework | Prismatic dark almost black crystals selected and mounted for SMART-CCD Bruker diffractometer measurements.glass fibre for XRD mounting · La 0.10 x 0.05 x 0.05 mm; Pr 0.30 x 0.06 x 0.02 mm; Sm 0.30 x 0.02 x 0.02 mm; Gd 0.30 x 0.02 x 0.02 mm | p002 / journal p.950 · Single-crystal structure determination and refinement · Table 1 |
| Na2AQDS powder controlresearch_0639__mat__mat_na2aqds_control | Powder · Pristine Control · Unknown | Commercial Na2AQDS used as received; dispersed in BaSO4 for UV-vis comparison. | p001 and p006 / journal pp.949,954 · Experimental section; optical discussion · Fig. 6 |
| No-rare-earth AQDS orange crystal controlresearch_0639__mat__mat_na2aqds_control | Single Crystal · Pristine Control · Unknown | Na2AQDS/water/butanol heated under RPF8-like conditions without rare-earth salt. | p003 / journal p.951 · Results and discussions |