2. Emission Enhancement and
Chromism in a Salen-Based Gel
System
Peng Chen, Ran Lu, Pengchong
Xue, Tinghua Xu, Guojun Chen,
Yingying Zhao
3. Ran Lu
• Jilin University
• State Key Laboratory of
Supramolecular Structure
and Materials
• 130 papers on Sci-Finder
• 9 Mater. Chem. Phys.
• 5 Langmuir
• 5 J. Mater. Research
• Various other ACS papers
4. Emission Enhancement and
Chromism in a Salen-Based Gel
System
• Functional gelsenhanced charge
transport, fluorescence, catalysis, sensing
abilities
• States that: “self-assembled properties of
metal-salen complexes remains
unexplored in the field of gels, although…”
5. J Aggregates
• Salphen aggregates exhibit J-bands
(bathochromic shift)
• What about a gel system with
thermochromism properties, based on
salphen/salen type molecules with various
metals?
12. Summary
• New salen-based organogelator
• Gels in several solvents
• Moleculenanofibers3-D network
• Aggregation-induced emission
enhancement (AIE) J-aggregates + no
intramolecular rotation
• Solutionfaint blue; Gelbright green
• Reversible chromism due to NH/OH
tautomerism
13. Supramolecular Assembly via
Noncovalent Metal Coordination
Chemistry: Synthesis,
Characterization, and Elastic
Properties
Christina Ott, Johannes M. Kranenburg, Carlos, Guerrero-Sanchez,
Stephanie Hoeppener, Daan Wouters, Ulrich S. Schubert
19. Micelles
• Polymers dissolved in THF and H2O added
dropwise to induce aggregation of
insoluble SPS block. More water added to
“freeze” micelles.
• SPS39-[Ru]-PEG70