Spectroscopy — Synthesis and changes of conductivities and thermal stabilities of 4,4′-oxybis [N-(3,4-dihydroxybenzilidene) aniline] chelate polymers

14 measurement groups · 37 results

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

FT-IR spectroscopy, Perkin Elmer FT-IR Spectrum One with universal ATR sampling accessory

Infrared spectroscopy

3,4-HBA monomer, pristine pressed pellet/solid · Pellet

FT-IR spectra recorded from 4000 to 550 cm^-1.

Geometry: ATR sampling accessory
Context: pristine solid characterisation
Measurement source: 3-4 · Sections 2.4 and 3.1 · Table 1; Fig. 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
3,4-HBA imine C=N band	1594	—	—	Table Exact Reported	4 · Table 1 · Table 1
3,4-HBA O-H band	3208	—	—	Table Exact Reported	4 · Table 1 · Table 1

FT-IR spectroscopy, Perkin Elmer FT-IR Spectrum One with universal ATR sampling accessory

Infrared spectroscopy

P-3,4-HBA-Cd pristine coordination-polymer solid/pellet · Pellet

FT-IR spectra recorded from 4000 to 550 cm^-1.

Geometry: ATR sampling accessory
Context: pristine solid characterisation
Measurement source: 3-4 · Sections 2.4 and 3.1 · Table 1; Fig. 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
P-3,4-HBA-Cd imine C=N band	1575	—	—	Table Exact Reported	4 · Table 1 · Table 1
P-3,4-HBA-Cd M-O band	611	—	—	Table Exact Reported	4 · Table 1 · Table 1

FT-IR spectroscopy, Perkin Elmer FT-IR Spectrum One with universal ATR sampling accessory

Infrared spectroscopy

P-3,4-HBA-Co pristine coordination-polymer solid/pellet · Pellet

FT-IR spectra recorded from 4000 to 550 cm^-1.

Geometry: ATR sampling accessory
Context: pristine solid characterisation
Measurement source: 3-4 · Sections 2.4 and 3.1 · Table 1; Fig. 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
P-3,4-HBA-Co imine C=N band	1575	—	—	Table Exact Reported	4 · Table 1 · Table 1
P-3,4-HBA-Co M-O band	612	—	—	Table Exact Reported	4 · Table 1 · Table 1

FT-IR spectroscopy, Perkin Elmer FT-IR Spectrum One with universal ATR sampling accessory

Infrared spectroscopy

P-3,4-HBA-Cr pristine coordination-polymer solid/pellet · Pellet

FT-IR spectra recorded from 4000 to 550 cm^-1.

Geometry: ATR sampling accessory
Context: pristine solid characterisation
Measurement source: 3-4 · Sections 2.4 and 3.1 · Table 1; Fig. 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
P-3,4-HBA-Cr imine C=N band	1582	—	—	Table Exact Reported	4 · Table 1 · Table 1
P-3,4-HBA-Cr M-O band	619	—	—	Table Exact Reported	4 · Table 1 · Table 1

FT-IR spectroscopy, Perkin Elmer FT-IR Spectrum One with universal ATR sampling accessory

Infrared spectroscopy

P-3,4-HBA-Cu pristine coordination-polymer solid/pellet · Pellet

FT-IR spectra recorded from 4000 to 550 cm^-1.

Geometry: ATR sampling accessory
Context: pristine solid characterisation
Measurement source: 3-4 · Sections 2.4 and 3.1 · Table 1; Fig. 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
P-3,4-HBA-Cu imine C=N band	1574	—	—	Table Exact Reported	4 · Table 1 · Table 1
P-3,4-HBA-Cu M-O band	619	—	—	Table Exact Reported	4 · Table 1 · Table 1

FT-IR spectroscopy, Perkin Elmer FT-IR Spectrum One with universal ATR sampling accessory

Infrared spectroscopy

P-3,4-HBA-Mn pristine coordination-polymer solid/pellet · Pellet

FT-IR spectra recorded from 4000 to 550 cm^-1.

Geometry: ATR sampling accessory
Context: pristine solid characterisation
Measurement source: 3-4 · Sections 2.4 and 3.1 · Table 1; Fig. 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
P-3,4-HBA-Mn imine C=N band	1578	—	—	Table Exact Reported	4 · Table 1 · Table 1
P-3,4-HBA-Mn M-O band	612	—	—	Table Exact Reported	4 · Table 1 · Table 1
P-3,4-HBA-Mn O-H band	3212	—	—	Table Exact Reported	4 · Table 1 · Table 1

FT-IR spectroscopy, Perkin Elmer FT-IR Spectrum One with universal ATR sampling accessory

Infrared spectroscopy

P-3,4-HBA-Ni pristine coordination-polymer solid/pellet · Pellet

FT-IR spectra recorded from 4000 to 550 cm^-1.

Geometry: ATR sampling accessory
Context: pristine solid characterisation
Measurement source: 3-4 · Sections 2.4 and 3.1 · Table 1; Fig. 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
P-3,4-HBA-Ni imine C=N band	1579	—	—	Table Exact Reported	4 · Table 1 · Table 1
P-3,4-HBA-Ni M-O band	612	—	—	Table Exact Reported	4 · Table 1 · Table 1

FT-IR spectroscopy, Perkin Elmer FT-IR Spectrum One with universal ATR sampling accessory

Infrared spectroscopy

P-3,4-HBA-Pb pristine coordination-polymer solid/pellet · Pellet

FT-IR spectra recorded from 4000 to 550 cm^-1.

Geometry: ATR sampling accessory
Context: pristine solid characterisation
Measurement source: 3-4 · Sections 2.4 and 3.1 · Table 1; Fig. 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
P-3,4-HBA-Pb imine C=N band	1572	—	—	Table Exact Reported	4 · Table 1 · Table 1
P-3,4-HBA-Pb M-O band	601	—	—	Table Exact Reported	4 · Table 1 · Table 1

FT-IR spectroscopy, Perkin Elmer FT-IR Spectrum One with universal ATR sampling accessory

Infrared spectroscopy

P-3,4-HBA-Zn pristine coordination-polymer solid/pellet · Pellet

FT-IR spectra recorded from 4000 to 550 cm^-1.

Geometry: ATR sampling accessory
Context: pristine solid characterisation
Measurement source: 3-4 · Sections 2.4 and 3.1 · Table 1; Fig. 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
P-3,4-HBA-Zn imine C=N band	1578	—	—	Table Exact Reported	4 · Table 1 · Table 1
P-3,4-HBA-Zn M-O band	615	—	—	Table Exact Reported	4 · Table 1 · Table 1

FT-IR spectroscopy, Perkin Elmer FT-IR Spectrum One with universal ATR sampling accessory

Infrared spectroscopy

P-3,4-HBA-Zr pristine coordination-polymer solid/pellet · Pellet

FT-IR spectra recorded from 4000 to 550 cm^-1.

Geometry: ATR sampling accessory
Context: pristine solid characterisation
Measurement source: 3-4 · Sections 2.4 and 3.1 · Table 1; Fig. 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
P-3,4-HBA-Zr imine C=N band	1582	—	—	Table Exact Reported	4 · Table 1 · Table 1
P-3,4-HBA-Zr M-O band	613	—	—	Table Exact Reported	4 · Table 1 · Table 1

1H and 13C NMR spectroscopy, Bruker AC FT-NMR at 400 and 100.6 MHz

Nuclear magnetic resonance

3,4-HBA monomer, pristine pressed pellet/solid · Pellet

DMSO-d6 solvent, 25 °C, tetramethylsilane internal standard.

Temperature: 298.15
Geometry: solution NMR
Context: monomer structural assignment
Measurement source: 2-3 · Sections 2.2 and 2.4 · Fig. 2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
3,4-HBA 1H NMR assignments	9.53 (s, 4H, -OH), 8.41 (s, 2H, -CH=N-), 7.45, 7.27, 7.21, 7.05, 6.88 ppm aromatic/proton assignments	—	—	Text Qualitative	2 · Section 2.2
3,4-HBA OH:imine:aromatic proton integration ratio	2.0:1.0:7.3	—	—	Text Exact Reported	4 · Section 3.1 · Fig. 2a

1H and 13C NMR spectroscopy, Bruker AC FT-NMR at 400 and 100.6 MHz

Nuclear magnetic resonance

P-3,4-HBA-Cr pristine coordination-polymer solid/pellet · Pellet

DMSO-d6/DMSO solution, 25 °C; P-3,4-HBA-Cr was relatively soluble.

Temperature: 298.15
Geometry: solution NMR
Context: pristine Cr coordination polymer structural assignment
Measurement source: 3-5 · Sections 2.3, 2.4, 3.1 · Fig. 3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
P-3,4-HBA-Cr 1H NMR assignments	10.39 (terminal -OH), 8.34 (-CH=N-), 8.09-6.30 ppm aromatic	—	—	Text Qualitative	3 · Section 2.3
P-3,4-HBA-Cr C1 chemical shift after polymerisation	146.39 ppm	—	—	Text Exact Reported	4 · Section 3.1 · Figs. 2b and 3b
P-3,4-HBA-Cr C6 chemical shift after polymerisation	143.33 ppm	—	—	Text Exact Reported	4 · Section 3.1 · Figs. 2b and 3b

UV-vis absorption spectroscopy, Perkin Elmer Lambda 25

UV-visible and optical absorption spectroscopy

3,4-HBA monomer, pristine pressed pellet/solid · Pellet

Absorption spectra recorded in methanol at 25 °C; optical band gaps calculated from absorption edges in Fig. 4b.

Temperature: 298.15
Geometry: solution UV-vis in methanol
Context: pristine optical/electronic characterisation
Measurement source: 4,6 · Sections 2.6 and 3.3 · Fig. 4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
3,4-HBA optical band gap Eg	2.58 eV	—	—	Text Exact Reported	6 · Section 3.3 · Fig. 4b
3,4-HBA UV-vis absorption maximum 1	207 nm	—	—	Text Exact Reported	4 · Section 3.3 · Fig. 4a
3,4-HBA UV-vis absorption maximum 2	233 nm	—	—	Text Exact Reported	4 · Section 3.3 · Fig. 4a
3,4-HBA UV-vis absorption maximum 3	286 nm	—	—	Text Exact Reported	4 · Section 3.3 · Fig. 4a
3,4-HBA UV-vis absorption maximum 4	337 nm	—	—	Text Exact Reported	4 · Section 3.3 · Fig. 4a
3,4-HBA UV-vis absorption maximum 5	435 nm	—	—	Text Exact Reported	4 · Section 3.3 · Fig. 4a

UV-vis absorption spectroscopy, Perkin Elmer Lambda 25

UV-visible and optical absorption spectroscopy

P-3,4-HBA-Cr pristine coordination-polymer solid/pellet · Pellet

Absorption spectra recorded in methanol at 25 °C; optical band gaps calculated from absorption edges in Fig. 4b.

Temperature: 298.15
Geometry: solution UV-vis in methanol
Context: pristine optical/electronic characterisation
Measurement source: 4,6 · Sections 2.6 and 3.3 · Fig. 4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
P-3,4-HBA-Cr optical band gap EgMarked as a best value within this paper	2.39 eV	—	—	Text Exact Reported	6 · Section 3.3 · Fig. 4b
P-3,4-HBA-Cr UV-vis absorption maximum 1	206 nm	—	—	Text Exact Reported	4 · Section 3.3 · Fig. 4a
P-3,4-HBA-Cr UV-vis absorption maximum 2	285 nm	—	—	Text Exact Reported	4 · Section 3.3 · Fig. 4a
P-3,4-HBA-Cr UV-vis absorption maximum 3	340 nm	—	—	Text Exact Reported	4 · Section 3.3 · Fig. 4a
P-3,4-HBA-Cr UV-vis absorption maximum 4	458 nm	—	—	Text Exact Reported	4 · Section 3.3 · Fig. 4a