Erratum: Polarized fluorescence spectrum of triphenylene in an‐heptane single crystal. Evidence for deformed molecules

catena-Poly[[[4-amino-N-(quinoxalin-2-yl)benzenesulfonamidato]aquacadmium(II)]-μ-4-amino-N-(quinoxalin-2-yl)benzenesulfonamidato], [Cd(C14H11N4O2S)2(H2O)], has been synthesized hydrothermally and characterized by single-crystal X-ray diffraction, elemental analysis, fluorescence, IR and thermal analysis. Single-crystal X-ray analysis reveals that the complex is a one-dimensional zigzag chain structure, and the CdIIcation has a distorted octahedral coordination geometry formed by five N atoms from three different sulfaquinoxaline ligands and one O atom from a water molecule. The fluorescence spectrum reveals that the complex emits strong blue fluorescence and thermal analysis shows that the complex has high thermal stability.

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Characterization of the orientation of ethanol-water clusters by polarized fluorescence spectrum

Acta Physica Sinica ◽

10.7498/aps.56.2962 ◽

2007 ◽

Vol 56 (5) ◽

pp. 2962

Author(s):

Liu Ying ◽

Song Chun-Yuan ◽

He Wen-Liang ◽

Luo Xiao-Sen ◽

Lu Jian ◽

...

Keyword(s):

Fluorescence Spectrum ◽

Water Clusters ◽

Polarized Fluorescence

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A Fluorescence Study of Hematoporphyrin

Applied Spectroscopy ◽

10.1366/000370273774333137 ◽

1973 ◽

Vol 27 (6) ◽

pp. 444-449 ◽

Cited By ~ 36

Author(s):

R. C. Srivastava ◽

V. D. Anand ◽

W. R. Carper

Keyword(s):

Fluorescence Spectrum ◽

Visible Region ◽

Molecular Association ◽

Polarized Fluorescence ◽

Fluorescence Study ◽

Absorption Bands ◽

Intense Band ◽

Fluorescence Characteristics ◽

Polarization Factor

The fluorescence characteristics of hematoporphyrin have been studied at 26°C as a function of concentration and pH. The pk values are 4.7 and 8.2 as determined in water and water-ethanol mixtures. The fluorescence spectrum consists of a peak at 625 nm and a second, less intense band at 675 nm. These emission bands are assigned to the Qy (0 → 0) and Qx (0 → 0) states. The four absorption bands in the visible region are assigned to π → π* transitions as follows: 502 nm, (1 ← 0); 536 nm, Qy (0 ← 0); 557 nm, Qx (1 ← 0); and 605 nm, Qx (0 ← 0). Corresponding excitation wavelengths include 505,540,570, and 620 nm. Polarized fluorescence is used to establish molecular association as a function of concentration. The polarization factor is used to verify the change from D2h to D4h symmetry as a function of pH.

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Fluorescence spectrum of phenanthrene single crystal at 4°K

Australian Journal of Chemistry ◽

10.1071/ch9660415 ◽

1966 ◽

Vol 19 (3) ◽

pp. 415 ◽

Cited By ~ 2

Author(s):

TN Misra ◽

AR Lacey ◽

LE Lyons

Keyword(s):

Single Crystal ◽

Single Crystals ◽

Fluorescence Spectrum ◽

Vibrational Frequencies

The fluorescence spectrum of anthracene-free phenanthrene single crystals at 4�K has been investigated. The whole spectrum has been analysed in terms of three superimposed spectra, one (weak) originating in a free pure exciton level of the pure phenanthrene crystal and two associated with defects. One of the defect spectra is very strong. All three series can be analysed in terms of similar if not identical vibrational frequencies.

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Polarized fluorescence of a crystal having uniaxially oriented molecules by a carbazole-diyl-bridged macrocage

CrystEngComm ◽

10.1039/c9ce00706g ◽

2019 ◽

Vol 21 (26) ◽

pp. 3910-3914 ◽

Cited By ~ 2

Author(s):

Hikaru Hashimoto ◽

Yusuke Inagaki ◽

Hiroyuki Momma ◽

Eunsang Kwon ◽

Kentaro Yamaguchi ◽

...

Keyword(s):

Single Crystal ◽

Electron System ◽

Polarized Fluorescence ◽

Oriented Molecules

An axially oriented π-electron system is achieved in a single crystal of a macrocage molecule, and polarized fluorescence of the single crystal was observed.

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Electronic Spectroscopy of Mixed Cyclophanes: [2.2](9,10)Anthraceno(1,4)naphthalenophane

Australian Journal of Chemistry ◽

10.1071/ch9892201 ◽

1989 ◽

Vol 42 (12) ◽

pp. 2201 ◽

Cited By ~ 7

Author(s):

J Ferguson ◽

RJ Robbins ◽

GJ Wilson

Keyword(s):

Absorption Spectrum ◽

Single Crystal ◽

Fluorescence Spectrum ◽

Absorption Spectra ◽

Fluorescence Polarization ◽

Fluorescence Spectra ◽

Electronic Spectroscopy ◽

Absorption And Fluorescence Spectra ◽

Absorption Bands ◽

Absorption Intensity

The absorption and fluorescence spectra of [2.21(9,10) anthraceno (1,4) naphthalenophane are reported. The anisotropy of the absorption bands was measured by two methods, ( i ) from fluorescence polarization ratios in a rigid glass and (ii) from single crystal absorption spectra at 23 K. The two states arising from the 1La states of the two chromophores were identified together with two states arising from other chromophore 1B2u states. Two states arising from the 1La states of the two chromophores were also identified. Whereas a coupled chromophore model accounts reasonably well for the latter two states, the energies and intensities of the bands arising from 1La chromophore states cannot be reconciled with this approach. Long axis polarized absorption intensity lying under the 1La, bands appears to be vibronically induced and not due to the 1Lb states. The absorption spectrum, fluorescence spectrum and fluorescence polarization ratios of a stable dimer were also observed. Its structure is similar to that of the stable dimer of anthracene in which the molecular long axes are parallel but the short axes make an angle of about 70� with each other.

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