Kitao T., Bracco S., Comotti A. et al. · Journal of the American Chemical Society · 2015 · 5231-5238
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.
Confining PMPrS in PCP nanopores strongly improves photostability under UV irradiation relative to bulk PMPrS.
Caveat: Photostability was assessed after extracting PMPrS from the host; operational device stability was not demonstrated.
p006-p007 · UV Stability of PMPrS in 1 · Figure 7; Figure S9 · Linked to 5 structured results
The aluminium PCP hosts themselves do not produce the observed transient photoconductivity signal; the transport signal arises from PMPrS guest chains.
Caveat: Host-only control is reported qualitatively from TRMC traces, not as a numeric detection limit.
p006 · Charge Carrier Mobility of PMPrS in 1 · Figure S8 · Linked to 3 structured results
The narrower 1a channel forces PMPrS into a more extended trans-like conformation, giving higher mobility than the wider 1b channel where disordered conformations are more frequent.
Caveat: Conformation is inferred from Raman, solid-state NMR, and MD rather than a directly solved polymer-chain crystal structure.
p005-p006 · Conformation and Charge Carrier Mobility · Figures 4-6 · Linked to 9 structured results
The 1a and 1b PCP nanochannels accommodate PMPrS as individual single polymer chains rather than bulk polymer domains outside the crystals.
Caveat: Single-chain occupancy is inferred from pore/chain dimensions plus ensemble characterisation, not directly imaged as an isolated chain.
p003-p004 · Results and Discussion - Characterization · Figures 2-3; Figures S1-S5 · Linked to 9 structured results
The nanopores protect UV-generated transient silicon species from oxygen attack and sterically suppress silylene extrusion, helping preserve Si-Si bonds and chain length.
Caveat: Mechanism is inferred from TAS, oxygen adsorption, and GPC/UV-vis stability evidence; transient recombination inside pores is proposed rather than directly observed.
p006-p007 · UV Stability of PMPrS in 1 · Figure S10 · Linked to 4 structured results
Confinement of PMPrS as single chains increases local hole mobility by more than an order of magnitude compared with bulk PMPrS by eliminating slow interchain hopping.
Caveat: TRMC mobility is local transient photoconductivity-derived mobility, not a two-terminal device conductivity.
p006 · Charge Carrier Mobility of PMPrS in 1 · Figure 6 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| PCP host 1a / DUT-4, [Al(OH)(2,6-naphthalenedicarboxylate)]n | [Al(OH)(L)]n, L = 2,6-naphthalenedicarboxylateAl(OH) inorganic chains/nodes · 2,6-naphthalenedicarboxylate | 3D · PristinePorous coordination polymer with one-dimensional channels of 8.5 x 8.5 A2 cross-section; identified as DUT-4. | p001-p002 · Abstract and Introduction · Figure 1 |
| 1a loaded with polymethylpropylsilane (1a-PMPrS) | [Al(OH)(2,6-naphthalenedicarboxylate)]n containing PMPrS chainsAl(OH) host framework · 2,6-naphthalenedicarboxylate host linker; polymethylpropylsilane guest polymer | 3D · CompositeHost-guest nanocomposite with single PMPrS chains confined in 8.5 x 8.5 A2 one-dimensional pores. | p003-p006 · Results and Discussion · Figures 2-6 |
| PCP host 1b / DUT-5, [Al(OH)(4,4'-biphenyldicarboxylate)]n | [Al(OH)(L)]n, L = 4,4'-biphenyldicarboxylateAl(OH) inorganic chains/nodes · 4,4'-biphenyldicarboxylate | 3D · PristinePorous coordination polymer with one-dimensional channels of 11.1 x 11.1 A2 cross-section; identified as DUT-5. | p001-p002 · Abstract and Introduction · Figure 1 |
| 1b loaded with polymethylpropylsilane (1b-PMPrS) | [Al(OH)(4,4'-biphenyldicarboxylate)]n containing PMPrS chainsAl(OH) host framework · 4,4'-biphenyldicarboxylate host linker; polymethylpropylsilane guest polymer | 3D · CompositeHost-guest nanocomposite with single PMPrS chains confined in 11.1 x 11.1 A2 one-dimensional pores. | p003-p006 · Results and Discussion · Figures 2-6 |
| polymethylpropylsilane (PMPrS) | [-Si(CH3)(Pr)-]nnone · not applicable; organosilicon polymer | 1D · Model SystemConductive polysilane guest/control polymer with sigma-conjugated Si-Si backbone. | p002-p003 · Experimental Section · Figure 1c |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| bulk PMPrS polymerresearch_0390__mat__pmprs_polymer | Powder · Pristine Control · Model | Wurtz-condensation polymer isolated by fractional precipitation and vacuum drying. | p002-p003 · Experimental Section - Synthesis of PMPrS |
| bulk PMPrS after UV irradiationresearch_0390__mat__pmprs_polymer | Unknown · Pristine Control · Model | Bulk PMPrS irradiated under air with a 500 W ultrahigh-pressure mercury lamp, 300-400 nm, for 24 h at room temperature. | p002-p006 · Photoirradiation and UV Stability · Figures 7; S9 |
| bulk PMPrS blended with PMMA/PDI for TRMC and TASresearch_0390__mat__pmprs_polymer | Thin Film · Pristine Control · Composite | Bulk PMPrS measured in a PMMA matrix with 10 wt percent PDI to facilitate charge generation and estimate quantum efficiency. | p003 · Time-Resolved Microwave Conductivity Measurements · Figure S7 |
| polycrystalline 1a-PMPrS in PMMA matrix on quartz for TRMCresearch_0390__mat__pcp_1a_pmprs | Thin Film · Target Sample · Composite | Polycrystalline film of 1-PMPrS dispersed in PMMA matrix and fixed onto quartz at the electric-field maximum in the microwave cavity.quartz substrate | p003 · Time-Resolved Microwave Conductivity Measurements · Figure 6 |
| 1a-PMPrS powder composite, 30 wt percent PMPrSresearch_0390__mat__pcp_1a_pmprs | Powder · Target Sample · Guest Loaded | Host 1a dried, immersed in PMPrS/hexane solution, then hexane removed by evacuation at 120 C for 12 h. | p003-p004 · Results and Discussion - Characterization of 1-PMPrS · Figures 2-3 |
| pristine host 1a powderresearch_0390__mat__pcp_1a_dut4 | Powder · Pristine Control · Pristine Framework | Prepared by previously described method; activated before N2 adsorption by reduced pressure treatment at 373 K for 5 h. | p002 · Experimental Section - Materials · Figures 1-2; Figure S2 |
| polycrystalline 1b-PMPrS in PMMA matrix on quartz for TRMCresearch_0390__mat__pcp_1b_pmprs | Thin Film · Target Sample · Composite | Polycrystalline film of 1-PMPrS dispersed in PMMA matrix and fixed onto quartz at the electric-field maximum in the microwave cavity.quartz substrate | p003 · Time-Resolved Microwave Conductivity Measurements · Figure 6 |
| 1b-PMPrS powder composite, 30 wt percent PMPrSresearch_0390__mat__pcp_1b_pmprs | Powder · Target Sample · Guest Loaded | Host 1b dried, immersed in PMPrS/hexane solution, then hexane removed by evacuation at 120 C for 12 h. | p003-p004 · Results and Discussion - Characterization of 1-PMPrS · Figures 2-3; Figure S6 |
| pristine host 1b powderresearch_0390__mat__pcp_1b_dut5 | Powder · Pristine Control · Pristine Framework | Prepared by previously described method; activated before N2 adsorption by reduced pressure treatment at 373 K for 5 h. | p002 · Experimental Section - Materials · Figures 1-2; Figure S2 |
| PMPrS extracted from UV-irradiated 1a-PMPrSresearch_0390__mat__pmprs_polymer | Unknown · Target Sample · Model | 1a-PMPrS exposed to UV light for 24 h in air; host decomposed in 0.05 M Na4-EDTA and PMPrS extracted with hexane. | p002-p006 · Photoirradiation and Extraction; UV Stability · Figures 7; S9 |
| PMPrS extracted from UV-irradiated 1b-PMPrSresearch_0390__mat__pmprs_polymer | Unknown · Target Sample · Model | 1b-PMPrS exposed to UV light for 24 h in air; host decomposed in 0.05 M Na4-EDTA and PMPrS extracted with hexane. | p002-p006 · Photoirradiation and Extraction; UV Stability · Figures 7; S9 |