Spectroscopy — Piperazine-linked metal covalent organic framework-coated fibers for efficient electro-enhanced solid-phase microextraction of chlorophenols

3 measurement groups · 11 results

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

CuPc-MCOF powder · Powder

Nicolet 6700; 4000-400 cm-1 range; normal scanning speed; 16 scans.

Geometry: Powder sample
Context: pristine framework powder
Measurement source: p.2-p.3 · 2.2. Instruments; 3.1. Synthesis and characterization · Fig. 1b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
FT-IR C-N piperazine-ring band	1273 cm-1	—	—	Text Exact Reported	p.3 · 3.1. Synthesis and characterization · Fig. 1b
FT-IR C-N piperazine-ring band	1618 cm-1	—	—	Text Exact Reported	p.3 · 3.1. Synthesis and characterization · Fig. 1b
FT-IR N-H stretching vibration	around 3329 cm-1	—	—	Text Approximate	p.3 · 3.1. Synthesis and characterization · Fig. 1b

CuPc-MCOF powder · Powder

CuPc-MCOF soaked for 72 h in 6 M HCl, 6 M NaOH, MeOH, DMF and DCM; washed/dried material examined by FT-IR and XRD.

Geometry: Powder after soaking
Context: pristine framework powder under chemical-stability challenge
Measurement source: p.6 · 3.3. Stability of CuPc-MCOF coated fibers · Fig. S8-S9

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
FT-IR stability after solvent/acid/base soaking	FT-IR pattern was basically unchanged	—	—	Text Qualitative	p.6 · 3.3. Stability of CuPc-MCOF coated fibers · Fig. S8
XRD stability after solvent/acid/base soaking	no obvious change in peak intensity and position of PXRD	—	—	Text Qualitative	p.6 · 3.3. Stability of CuPc-MCOF coated fibers · Fig. S9

CuPc-MCOF powder · Powder

ESCALAB 250 X-ray instrument with monochromatic Al Kalpha source.

Geometry: Powder sample
Context: pristine framework powder
Measurement source: p.3 · 3.1. Synthesis and characterization · Fig. 1d-f; Fig. S3-S4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
XPS C 1s C-N binding energy	286.5 eV	—	—	Text Exact Reported	p.3 · 3.1. Synthesis and characterization · Fig. 1e
XPS Cu(II) 2p1/2 binding energy	954.3 eV	—	—	Text Exact Reported	p.3 · 3.1. Synthesis and characterization · Fig. 1d
XPS Cu(II) 2p3/2 binding energy	934.4 eV	—	—	Text Exact Reported	p.3 · 3.1. Synthesis and characterization · Fig. 1d
Cu content in CuPc-MCOF	1.31%	—	—	Text Exact Reported	p.8 · 3.7. Extraction mechanism · Fig. 1d,f
XPS N 1s C=N binding energy	398.1 eV	—	—	Text Exact Reported	p.3 · 3.1. Synthesis and characterization · Fig. 1e
XPS N 1s -NH- binding energy	398.6 eV	—	—	Text Exact Reported	p.3 · 3.1. Synthesis and characterization · Fig. 1e