Misumi Y., Yamaguchi A., Zhang Z. et al. · Journal of the American Chemical Society · 2020 · 16513-16517
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.
Cu(I) cations are detectable in Cu3(HHTP)2 and are attributed to diamagnetic structural defects.
Caveat: The fraction of Cu(I) is not quantified in the article or SI.
main p.2 · Results · Figures S4-S5 · Linked to 2 structured results
Low-temperature magnetic heat capacity of Cu3(HHTP)2 follows an approximate T^0.52 dependence, which the authors interpret as rational for a non-Fermi liquid at ultralow temperature.
Caveat: The low-temperature heat-capacity fit includes a Schottky term and requires lattice-subtraction assumptions using Zn3(HHTP)2.
main p.3 · Results · Figure 3b; Figure S11 · Linked to 2 structured results
Cu3(HHTP)2 is proposed as a candidate quantum spin liquid with no evidence of long-range magnetic ordering down to 38 mK.
Caveat: The paper presents thermodynamic evidence for candidacy rather than direct microscopic proof of a QSL state; further NMR and applied-field studies are proposed.
main p.3-p.4 · Results and conclusion · Figure 2; Figure 3; Figure 4 · Linked to 4 structured results
Cu(II) cations in Cu3(HHTP)2 form a 2D Kagome lattice that provides the geometrically frustrated spin network.
Caveat: Cu(I) defects are detectable by spectroscopy, though authors argue these do not alter the main characteristics.
main p.1 · Introduction · Figure 1 · Linked to 2 structured results
Cu3(HHTP)2 is a semiconductive 2D MOF, with pressed-pellet conductivity substantially higher than isostructural Zn3(HHTP)2.
Caveat: Conductivity values are pressed-pellet four-probe values, not single-crystal or oriented-film transport.
SI p.S15 · S13 Temperature variable conductivity · Figure S12 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu3(HHTP)2Browse family: Cu₃(HHTP)₂ / Cu–HHTP | Cu3(HHTP)2Cu cations; mainly Cu(II) S = 1/2 with detectable Cu(I) defects · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) | 2D · PristineTwo-dimensional semiconductive metal-organic framework with honeycomb layers and a Kagome lattice arrangement of Cu(II) cations. | main p.1 · Introduction · Figure 1 |
| Zn3(HHTP)2Browse family: Zn–HHTP family | Zn3(HHTP)2Zn(II) cations · 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) | 2D · PristineIsostructural HHTP-based 2D MOF used as a diamagnetic control for Cu3(HHTP)2. | main p.3 · Results · Figure 4; Figure S11 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Activated Cu3(HHTP)2 powderresearch_0801__mat__cu_hhtp | Powder · Target Sample · Pristine Framework | Water and acetone solvent exchange, vacuum for 3 h, stored under argon. | SI p.S2 and p.S4 · S1 Experimental details; S2 PXRD · Figure S1 |
| Cu3(HHTP)2-silver pellet for heat capacityresearch_0801__mat__cu_hhtp | Pellet · Target Sample · Composite | MOF mixed with silver particles and pressed into a pellet for heat-capacity measurements. | SI p.S3 · Details of physical property measurements |
| Cu3(HHTP)2-silver pellet for ultralow-temperature susceptibilityresearch_0801__mat__cu_hhtp | Pellet · Target Sample · Composite | MOF mixed with silver particles and pressed into a pellet to improve thermal conductivity for ultralow-temperature susceptibility. | SI p.S2 · Details of physical property measurements |
| As-prepared Cu3(HHTP)2 powderresearch_0801__mat__cu_hhtp | Powder · Target Sample · Guest Loaded | Solvothermal product before activation; dark purplish powder rinsed with water and acetone. | SI p.S2 and p.S9 · S1 Experimental details; S7 TGA · Figure S6 |
| Cu3(HHTP)2 pressed pellet with gold-wire four-probe contactsresearch_0801__mat__cu_hhtp | Pellet · Target Sample · Pristine Framework | Pressed MOF pellet contacted by four gold wires using gold paste for temperature-variable conductivity measurement. | SI p.S15 · S13 Temperature variable conductivity measurement · Figure S12 |
| Activated Zn3(HHTP)2 powderresearch_0801__mat__zn_hhtp | Powder · Pristine Control · Pristine Framework | Water and acetone solvent exchange, vacuum for 3 h, stored under argon. | SI p.S2 · Activation of as-prepared sample |
| As-prepared Zn3(HHTP)2 powderresearch_0801__mat__zn_hhtp | Powder · Pristine Control · Guest Loaded | Solvothermal product before activation, prepared by the same reported procedure with Zn precursor. | SI p.S2 · S1 Experimental details |
| Zn3(HHTP)2 heat-capacity control sampleresearch_0801__mat__zn_hhtp | Pellet · Pristine Control · Pristine Framework | Heat-capacity sample used for comparison and lattice heat-capacity estimation. | main p.3 · Results · Figure 4; Figure S11 |
| Zn3(HHTP)2 pressed pellet with gold-wire four-probe contactsresearch_0801__mat__zn_hhtp | Pellet · Pristine Control · Pristine Framework | Pressed MOF pellet contacted by four gold wires using gold paste for temperature-variable conductivity measurement. | SI p.S15 · S13 Temperature variable conductivity measurement · Figure S12 |