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A neutral hexacoordinate silicon complex containing two 2,6-bis(benzimidazol-2′-yl)pyridine (bzimpy) ligands has been synthesized and explored as a potential electron transport layer and electroluminescent layer in organic electronic devices. The air and water stable complex is fluorescent in solution with a λ max = 510 nm and a QY = 57%. Thin films grown via thermal evaporation also fluoresce and possess an average electron mobility of 6.3 × 10 −5 cm 2 V −1 s −1 . An ITO/Si(bzimpy) 2 /Al device exhibits electroluminescence with λ max = 560 nm.
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Progress toward colorimetric and fluorescent detection of carbonyl sulfide
We report here that a fluorescent benzobisimidazolium salt (TBBI) can be used for the fluorescent and colorimetric detection of carbonyl sulfide (COS) over related heterocumulenes including CO 2 and CS 2 in wet MeCN. The reaction between TBBI and COS in the presence of fluoride yields a highly fluorescent ( λ em = 354 nm) and colored product ( λ max = 321, 621 nm), that is readily observed by the naked eye. We view these results as a first step toward developing activity-based probes for COS detection.
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- Award ID(s):
- 1625529
- PAR ID:
- 10309028
- Date Published:
- Journal Name:
- Chemical Communications
- Volume:
- 56
- Issue:
- 67
- ISSN:
- 1359-7345
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1039/d0cc04528d
