Development of new Luminescent Coordination Polymers / MOFs for Molecular Detection

2. Development of new luminescent
coordination polymers/ MOFs for
molecular detection
First year graduate student symposium 2020,
Bern
Franck Oswald, Fromm Group

3. INTRODUCTION
Qualitative Analysis
molecular detection
“To be or not to be ?”
The Sense:
Time-Price Limit-Danger
Electronics / Optics
NMR, IR, XRD, MS
Chemistry / Biology
PCR
Carl Wilhelm
Scheele
(1742 –1786)
Semi-quantitative Analysis
How many ?
Quantitative Analysis
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4. INTRODUCTION
Chemical detection
Intramolecular reactions Supramolecular interactions
H-bonding
π-π
interactions
Coordination
Coordination polymers / MOFs
Cation /
anion
Combustion
Organic
reaction
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5. INTRODUCTION
Coordination polymers
Organic ligand Metal Ion
MOFs
Organic ligand
Metal Ion
= Building Units 2
(2D)
Building Units 1
(1D)
Organic ligand
Building Units
(3D)
1D
2D
3D
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6. INTRODUCTION
Properties:
• Infinite types of structures
• Porous materials
• Supramolecular interaction
Applications: (source)
• Gaz storage
• Catalysis
• CO2 reduction
• Water Uptake
• Separation membranes
• Hydrogen Evolution Reaction
• Molecular detection
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7. PRELIMINARY WORK
Vasylevskyi, S. I.; Bassani, D. M.; Fromm, K. M. Inorganic Chemistry 2019, 58
(9), 5646-5653.
Excitation band : 380 nm
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8. AIM OF THE PROJECT
Development of new luminescent coordination polymers and MOFs for molecular
detection
Design new ligands
Anthracene
Fonctionnalisation
BMIPA
BMAPA
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9. LIGANDS’ SYNTHESIS
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10. X-RAY OF THE LIGANDS
Ortho-BMIPA Meta-BMIPA Para-BMIPA
Angle: 83° Angle: 72° Angle: 66°
Interaction : pi-pi (T
shape)
Interaction : Hydrogen
bonding
Interaction : pi-pi
stacking (T-shape and
face to face)
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11. UV-VISIBLE MEASUREMENTS
Absorbance in liquid Emission in liquid Emission in solid
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
300 350 400 450 500 550
Normalize
Absorbance
[A]
Wavelength [nm]
DCM
orth-BMAPA orth-BMIPA
met-BMAPA met-BMIPA
para-BMAPA para-BMIPA
-0.2
0
0.2
0.4
0.6
0.8
1
1.2
400 450 500 550 600 650
Wavelength [nm]
DCM
met-BMIPA met-BMIPA
orth-BMAPA orth-BMIPA
para-BMAPA para-BMIPA
-0.2
0
0.2
0.4
0.6
0.8
1
1.2
400 450 500 550 600 650
Wavelength [nm]
SOLID
orth-BMAPA s orth-BMIPA s
met-BMAPA s met-BMIPA s
para-BMAPA s para-BMIPA s
Excitation wavelength : 380 nm
Ԑ n-BMIPA: ? L mol-1cm-1
Ԑ n-BMAPA: ? L mol-1cm-1
Excitation wavelength : 380 nm
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12. COORDINATION POLYMER
Meta-BMIPA AgClO 1.8 % of unit cell
volume
48.83 Å
Angle: 72°
Interaction : Hydrogen bonding Can’t be used for
detection
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13. MOFs
Li, X.; YangZ.-M. Crystal Growth & Design 2016, 16 (8), 4374-4382.
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14. CONCLUSION
Development of new luminescent coordination polymers and MOFs for molecular
detection
1. New ligands
X-ray
Uv-visible
2. New Coordination polymer
and MOF
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15. OUTLOOK
1. Designing new
ligands
Base structure
Functionalizin
g positions
Design linkers
2. Metals
Study the
Influence
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16. OUTLOOK
Ligands
3. Coordination Polymers and
MOFs
Metals
Proprieties
Detection
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17. ACKNOWLEDGMENTS
Thanks for your Attention
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