Defining the origins of multiple emission/excitation in rhenium-bisthiazole complexes

Nicholas Azzarelli, Shashikanth Ponnala, Alexander Aguirre, Sara J. Dampf, Margaret P. Davis, Michael T. Ruggiero, Valerie Lopez Diaz, John W. Babich, Michael Coogan, Timothy Michael Korter, Robert Patrick Doyle, Jon A Zubieta

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The underlying mechanism of the unusual emissive behavior of [Re(CO) 3 -1,1-bis-4-thiazole-(1,4)-diaminobutane)] bromide (4-BT) has been investigated. Synthesis and spectroscopic characterization of structurally similar isomers ([Re(CO) 3 -1,1-bis-2-thiazole-(1,4)-diaminobutane)] bromide (2-BT)) and the location of triplet states, solid state and low temperature spectroscopic measurements, and DFT calculations show that the photophysical properties are not due to photoisomerization as previously hypothesized. The results show that the unusual emissive behavior is not observed in structural isomers, is specific to the previously reported complex, 4-BT, and may arise from vibrational energy relaxation and vibrational cooling. Translation of the unusual emissive behavior to the solid state offers an interesting platform allowing this complex to be potentially utilized as a probe, sensor or photonic device.

Original languageEnglish (US)
Pages (from-to)301-309
Number of pages9
JournalInorganica Chimica Acta
Volume489
DOIs
StatePublished - Apr 1 2019

Fingerprint

Rhenium
Thiazoles
Putrescine
rhenium
Carbon Monoxide
Bromides
Isomers
Photoisomerization
Photonic devices
bromides
isomers
Discrete Fourier transforms
excitation
solid state
Cooling
atomic energy levels
Sensors
platforms
photonics
cooling

Keywords

  • DFT
  • Fluorescence
  • Kasha-Vavilov Rule
  • Rhenium tricarbonyl
  • Solid state fluorescence
  • Thiazole ligands
  • X-ray crystallography

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Defining the origins of multiple emission/excitation in rhenium-bisthiazole complexes. / Azzarelli, Nicholas; Ponnala, Shashikanth; Aguirre, Alexander; Dampf, Sara J.; Davis, Margaret P.; Ruggiero, Michael T.; Lopez Diaz, Valerie; Babich, John W.; Coogan, Michael; Korter, Timothy Michael; Doyle, Robert Patrick; Zubieta, Jon A.

In: Inorganica Chimica Acta, Vol. 489, 01.04.2019, p. 301-309.

Research output: Contribution to journalArticle

Azzarelli, N, Ponnala, S, Aguirre, A, Dampf, SJ, Davis, MP, Ruggiero, MT, Lopez Diaz, V, Babich, JW, Coogan, M, Korter, TM, Doyle, RP & Zubieta, JA 2019, 'Defining the origins of multiple emission/excitation in rhenium-bisthiazole complexes', Inorganica Chimica Acta, vol. 489, pp. 301-309. https://doi.org/10.1016/j.ica.2019.01.028
Azzarelli N, Ponnala S, Aguirre A, Dampf SJ, Davis MP, Ruggiero MT et al. Defining the origins of multiple emission/excitation in rhenium-bisthiazole complexes. Inorganica Chimica Acta. 2019 Apr 1;489:301-309. https://doi.org/10.1016/j.ica.2019.01.028
Azzarelli, Nicholas ; Ponnala, Shashikanth ; Aguirre, Alexander ; Dampf, Sara J. ; Davis, Margaret P. ; Ruggiero, Michael T. ; Lopez Diaz, Valerie ; Babich, John W. ; Coogan, Michael ; Korter, Timothy Michael ; Doyle, Robert Patrick ; Zubieta, Jon A. / Defining the origins of multiple emission/excitation in rhenium-bisthiazole complexes. In: Inorganica Chimica Acta. 2019 ; Vol. 489. pp. 301-309.
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