The infrared and Raman spectra of 2,5 and 2,6 dialkyl-p-benzoquinones

George, W. O.; Leigh, Michael J.; Strickson, J.A.

doi:10.1016/0584-8539(71)80074-0

Cited by 4 publications

(1 citation statement)

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“…24 The round absorption bands located in the range 1360-1440 cm -1 of spectrum LN100 (similarly in LN200) can be attributed to CH 2 bending (1360 cm -1 ) 25,26 and CH 2 wagging (1440 cm -1 ), 25 respectively, while the C-C skeletal stretching mode at 940 cm -1 can be clearly identified for the LN100 sample. 25,26 These hydrocarbon species reflect the fact that at 100 °C, certain organic compounds (backbones) are still retained or encapsulated in the amorphous gel LN100. In particular, the C-O mode at 1278 cm -1 27 indicates that the solvent 2-propanol and hydrolysis products (alcohols) are still included in the gel at this temperature.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Lithium Niobate Gels Using a Metal Alkoxide−Metal Nitrate Precursor

Zeng

Tung

1996

Chem. Mater.

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Gel material (Li:Nb = 1:1) of LiNbO3 has been prepared from a novel precursor system, niobium(V) ethoxide−lithium nitrate. The resultant biphasic gel is calcined at various elevated temperatures and studied with FTIR/XRD/DTA/SEM methods for gel composition, crystallization, and morphological development. The progressive formation (crystallization) of LiNbO3 is observed over the calcination temperature range 200−400 °C. It is found that grain growth and secondary recrystallization occur sequentially at higher temperatures. Retention behaviors of carbon-containing species and nitrate ions encapsulated in the gel matrix and a possible LiNbO3 formation mechanism are also addressed.

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Section: Resultsmentioning

confidence: 99%