Mono-, Bis-, and Tris-Chelate Zn(II) Complexes with Imidazo[1,5-a]pyridine: Luminescence and Structural Dependence
Abstract
:1. Introduction
2. Results and Discussion
2.1. Synthesis
2.2. Optical Characterization
2.3. Structural Characterization
2.4. Vibrational Characterization
2.5. Mass Spectrometry
3. Materials and Methods
3.1. Experimental Techniques
3.2. Syntheses
General Procedure for Zn(II) Complexes
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Compound | Absorption (nm) | Excitation (nm) | Emission (nm) | Stokes Shift (nm) | Quantum Yield (%) |
---|---|---|---|---|---|
L | 377 sh | 377 | 463 | 79 | 19 |
324 | |||||
[Zn(L)Cl2] | 395 sh | 376 | 462 sh | 64 | 32 |
376 | 440 | ||||
362 | 416 sh | ||||
[Zn(L)(NO3)2] | 394 sh | 375 | 462 sh 439 418 sh | 64 | 36 |
375 | |||||
363 | |||||
318 | |||||
294 sh | |||||
[Zn(L)2(NO3)](NO3) | 398 sh | 373 | 460 sh 435 415 sh | 62 | 35 |
373 | |||||
361 | |||||
322 | |||||
[Zn(L)3][Zn(SCN)4] | 395 sh | 374 | 460 sh 438 | 64 | 25 |
374 | |||||
359 | |||||
323 | |||||
296 sh |
Compound | Excitation (nm) | Emission (nm) | Stokes Shift (nm) | Quantum Yield (%) |
---|---|---|---|---|
L | 425 | 520 sh | 83 | 5 |
491 | ||||
460 | ||||
[Zn(L)Cl2] | 418 | 498 | 142 | 6 |
[Zn(L)(NO3)2] | 444 | 493 | 125 | 7 |
[Zn(L)2(NO3)](NO3) | 425 | 495 | 105 | 2 |
[Zn(L)3][Zn(SCN)4] | 423 | 475 | 91 | <1 |
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Cerrato, V.; Volpi, G.; Priola, E.; Giordana, A.; Garino, C.; Rabezzana, R.; Diana, E. Mono-, Bis-, and Tris-Chelate Zn(II) Complexes with Imidazo[1,5-a]pyridine: Luminescence and Structural Dependence. Molecules 2023, 28, 3703. https://doi.org/10.3390/molecules28093703
Cerrato V, Volpi G, Priola E, Giordana A, Garino C, Rabezzana R, Diana E. Mono-, Bis-, and Tris-Chelate Zn(II) Complexes with Imidazo[1,5-a]pyridine: Luminescence and Structural Dependence. Molecules. 2023; 28(9):3703. https://doi.org/10.3390/molecules28093703
Chicago/Turabian StyleCerrato, Valerio, Giorgio Volpi, Emanuele Priola, Alessia Giordana, Claudio Garino, Roberto Rabezzana, and Eliano Diana. 2023. "Mono-, Bis-, and Tris-Chelate Zn(II) Complexes with Imidazo[1,5-a]pyridine: Luminescence and Structural Dependence" Molecules 28, no. 9: 3703. https://doi.org/10.3390/molecules28093703