The importance of hydrogen bonded clusters in the stabilization of the intramolecular charge transfer state of 4,4'-diaminophenyl sulphone in alcohols and alcohol:acetonitrile mixtures

Shyh-Gang Su, John D. Simon

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The formation of the twisted intramolecular charge transfer (TICT) state of 4,4'-diaminophenyl sulphone (APS) has been examined in hexanol/acetonitrile mixtures. The TICT emission reveals wavelength dependent rise times which are sensitive to the alcohol concentration. Discernible wavelength-dependent rise times are observed for hexanol:acetonitrile mixtures above 1:2. Examination of the infrared O-H stretch for these solutions shows that above this ratio, hydrogen-bonded aggregates are formed. In addition, the emission dynamics of APS in neat hexanol are compared with those observed for 4,4'-dimethylaminophenyl sulphone (DMAPS) and 3,3'-diaminophenylsulphone (3,3'-APS).

Original languageEnglish
Pages (from-to)345-350
Number of pages6
JournalChemical Physics Letters
Volume132
Issue number4-5
DOIs
Publication statusPublished - 1986 Dec 19

Fingerprint

Hexanols
Dapsone
sulfones
acetonitrile
Charge transfer
Hydrogen
alcohols
Stabilization
stabilization
charge transfer
Alcohols
hydrogen
wavelengths
Wavelength
Sulfones
examination
Infrared radiation

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

Cite this

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abstract = "The formation of the twisted intramolecular charge transfer (TICT) state of 4,4'-diaminophenyl sulphone (APS) has been examined in hexanol/acetonitrile mixtures. The TICT emission reveals wavelength dependent rise times which are sensitive to the alcohol concentration. Discernible wavelength-dependent rise times are observed for hexanol:acetonitrile mixtures above 1:2. Examination of the infrared O-H stretch for these solutions shows that above this ratio, hydrogen-bonded aggregates are formed. In addition, the emission dynamics of APS in neat hexanol are compared with those observed for 4,4'-dimethylaminophenyl sulphone (DMAPS) and 3,3'-diaminophenylsulphone (3,3'-APS).",
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T1 - The importance of hydrogen bonded clusters in the stabilization of the intramolecular charge transfer state of 4,4'-diaminophenyl sulphone in alcohols and alcohol:acetonitrile mixtures

AU - Su, Shyh-Gang

AU - Simon, John D.

PY - 1986/12/19

Y1 - 1986/12/19

N2 - The formation of the twisted intramolecular charge transfer (TICT) state of 4,4'-diaminophenyl sulphone (APS) has been examined in hexanol/acetonitrile mixtures. The TICT emission reveals wavelength dependent rise times which are sensitive to the alcohol concentration. Discernible wavelength-dependent rise times are observed for hexanol:acetonitrile mixtures above 1:2. Examination of the infrared O-H stretch for these solutions shows that above this ratio, hydrogen-bonded aggregates are formed. In addition, the emission dynamics of APS in neat hexanol are compared with those observed for 4,4'-dimethylaminophenyl sulphone (DMAPS) and 3,3'-diaminophenylsulphone (3,3'-APS).

AB - The formation of the twisted intramolecular charge transfer (TICT) state of 4,4'-diaminophenyl sulphone (APS) has been examined in hexanol/acetonitrile mixtures. The TICT emission reveals wavelength dependent rise times which are sensitive to the alcohol concentration. Discernible wavelength-dependent rise times are observed for hexanol:acetonitrile mixtures above 1:2. Examination of the infrared O-H stretch for these solutions shows that above this ratio, hydrogen-bonded aggregates are formed. In addition, the emission dynamics of APS in neat hexanol are compared with those observed for 4,4'-dimethylaminophenyl sulphone (DMAPS) and 3,3'-diaminophenylsulphone (3,3'-APS).

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