Thermal polycondensation of anthracene for carbon precursors

Valovičová, V.; Plevová, Eva; Vaculíková, Lenka; Ritz, Michal; Vallová, Silvie

doi:10.1007/s10973-015-5124-9

Cited by 2 publications

(2 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 5 shows the typical infrared spectra of the DPA crystals in the range of 2000−400 cm −1 . The Raman spectra show very strong absorption bands at 1414 and 1294 cm −1 , which are respectively attributed to the stretching vibrations of the anthracene framework loop [17] and the CC bridge bond between the benzene rings, which is invisible in the Raman spectra of pure anthracene and benzene [17,18]. Some moderately strong absorption bands are also observed in the Raman spectra.…”

Section: Structure Of Dpa Crystalsmentioning

confidence: 96%

“…The absorption peak at 1001 cm −1 originates from the symmetric stretching vibrations of the benzene ring. The absorption peaks at 680−660 cm −1 may be attributed to the breathing vibrations of substituted anthracycline compounds, which do not exist in the Raman spectra of anthracene and toluene [17]. The absorption peaks at wavenumbers <700 cm −1 arise from the CC deformed vibrations bending off the plane of the benzene ring and anthracycline [22].…”

Section: Structure Of Dpa Crystalsmentioning

confidence: 97%

See 1 more Smart Citation

Structure, Optical, and Thermal Properties of 9, 10-Diphenylanthracene Crystals

Zhu

et al. 2019

Crystals

View full text Add to dashboard Cite

9,10-diphenylanthracene (DPA) single crystal is a promising scintillator material for fast-neutron detection. Two centimetre-sized polymorph crystals of DPA were grown by melting and solution methods (DPA-Melt and DPA-Solution, respectively), and characterised by single-crystal X-ray diffraction, Raman spectroscopy, Fourier-transform infrared spectroscopy, fluorescence spectroscopy, UV-Vis absorbance spectroscopy, and thermogravimetric/differential scanning calorimetry. The DPA-Melt crystal possessed a P21/n structure, with excitation bands at approximately 331, 348, 367, and 387 nm, and the strongest emission wavelength at approximately 454 nm. On the other hand, the DPA-Solution crystal possessed a C2/c structure, with excitation bands at approximately 335, 353, 372, and 396 nm, and the strongest emission wavelength at approximately 468 nm. The two kinds of DPA crystals have the same molecular formula but different crystal structures, crystal lattice constants, and cell parameters. The theoretical density of the DPA-Solution crystal was 1.239 g/cm3, while that of the DPA-Melt crystal was 1.211 g/cm3. The two types of crystals exhibited the same melting point, but the thermal stability of the DPA-Solution crystal is better than that of the DPA-Melt crystal.

show abstract

Section: Structure Of Dpa Crystalsmentioning

confidence: 96%

Section: Structure Of Dpa Crystalsmentioning

confidence: 97%