Nyakuchena J., Ostresh S., Streater D. et al. · Journal of Physical Chemistry C · 2024 · 315-320
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 Cu-pyrene 1D coordination nanosheets are presented as truncated models for studying charge transport mechanisms relevant to 2D conductive MOFs.
Caveat: The materials are coordination nanosheets used as model systems, not full 2D MOFs.
4 · Introduction · Linked to 2 structured results
Disappearance of the 2500 cm-1 S-H stretch in Cu-PTT and Cu-tBuPTT indicates formation of nanosheets through metal-to-ligand coordination.
Caveat: FTIR is used as coordination evidence but no full crystal structure is reported for the nanosheets.
8 · Results and Discussion · Figure 2a · Linked to 2 structured results
Cu-PTT and Cu-tBuPTT contain mixed Cu(I)/Cu(II) valence states.
Caveat: Based on fitted Cu 2p XPS components.
9 · Results and Discussion · Figure S7 · Linked to 4 structured results
Introducing tert-butyl groups increases the calculated interlayer distance from 4.68 A in Cu-PTT to 4.92 A in Cu-tBuPTT and reduces pi-pi interaction.
Caveat: Interlayer distances are DFT-optimised values, not direct experimental distances for the nanosheets.
9-10 · Results and Discussion · Figure S6 · Linked to 3 structured results
Cu-PTT exhibits stronger and longer-lived photoconduction than Cu-tBuPTT under OPTP conditions.
Caveat: Main text uses typographical sample names Cu-PPT and Cu-t-BuPPT in this paragraph; context and figures indicate Cu-PTT and Cu-tBuPTT.
10-11 · Results and Discussion · Figure 3a; Table S1 · Linked to 4 structured results
Increasing the distance between 1D layers reduces photoconduction and carrier lifetime by disrupting through-space charge transport pathways.
Caveat: Mechanistic assignment combines experimental OPTP trends with DFT interlayer distances and schematic interpretation.
11 · Results and Discussion · Figure 3b · Linked to 6 structured results
Broad NIR-extending diffuse reflectance absorption in both nanosheets suggests low-energy transitions associated with charge carriers or low-energy trap states.
Caveat: Spectroscopic inference, not a direct conductivity measurement.
9 · Results and Discussion · Figure 2c · Linked to 2 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Cu-Pyrene-4,5,9,10 tetrathiol coordination nanosheet (Cu-PTT) | Not specifiedCu from CuCl2/CuCl2.2H2O; XPS indicates mixed Cu(I)/Cu(II) · pyrene-4,5,9,10-tetrathiol (PTT) | 1D · PristineCu-based 1D coordination nanosheet; truncated model of 2D conductive MOFs; weak ab-plane interactions and pyrene interlayer stacking. | 2 · Abstract |
| Cu-2,7-ditertbutyl-pyrene-4,5,9,10-tetrathiol coordination nanosheet (Cu-tBuPTT) | Not specifiedCu from CuCl2/CuCl2.2H2O; XPS indicates mixed Cu(I)/Cu(II) · 2,7-ditertbutyl-pyrene-4,5,9,10-tetrathiol (tBuPTT) | 1D · PristineCu-based 1D coordination nanosheet with tert-butyl groups increasing interlayer distance and reducing pi-pi interaction. | 2 · Abstract |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| Cu-PTT nanosheet powderresearch_0401__mat__mat_cu_ptt | Nanosheet · Target Sample · Pristine Framework | Brown precipitate collected by centrifugation and dried; powder samples prepared as 3 um mylar tape cells for OPTP. | 8 · Results and Discussion |
| Cu-tBuPTT nanosheet powderresearch_0401__mat__mat_cu_tbuptt | Nanosheet · Target Sample · Pristine Framework | Brown precipitate collected by centrifugation and dried; powder samples prepared as 3 um mylar tape cells for OPTP. | 8 · Results and Discussion |