Linear-dichroic infrared spectral analysis of Cu(I)–homocysteine complex

Ivanova, Bojidarka; Arnaudov, M.; Bontchev, P.R.

doi:10.1016/s1386-1425(03)00310-x

Cited by 108 publications

(52 citation statements)

References 15 publications

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“…The shoulder band at 2882 cm -1 may originate from the C-H stretching in the (-CH 2 ) and (-CH 3 ) groups [50,51]. The relatively wide band at 2344 cm -1 may either correspond to the symmetric (NH 3 + ) stretching frequency [52] or to the carbon-oxygen bonds in the ketene groups [50]. Another relatively broad peak at ~2100 cm -1 is attributed to the allene (C=C=C) group [53].…”

Section: Adsorption Of Methyl Orange By the Synthesized Activated Carbonmentioning

confidence: 99%

Adsorption capability of activated carbon synthesized from coconut shell

Islam¹,

Ang²,

Gharehkhani³

et al. 2016

Carbon letters

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Activated carbon was synthesized from coconut shells. The Brunauer, Emmett and Teller surface area of the synthesized activated carbon was found to be 1640 m 2 /g with a pore volume of 1.032 cm 3 /g. The average pore diameter of the activated carbon was found to be 2.52 nm. By applying the size-strain plot method to the X-ray diffraction data, the crystallite size and the crystal strain was determined to be 42.46 nm and 0.000489897, respectively, which indicate a perfect crystallite structure. The field emission scanning electron microscopy image showed the presence of well-developed pores on the surface of the activated carbon. The presence of important functional groups was shown by the Fourier transform infrared spectroscopy spectrum. The adsorption of methyl orange onto the activated carbon reached 100% after 12 min. Kinetic analysis indicated that the adsorption of methyl orange solution by the activated carbon followed a pseudo-second-order kinetic mechanism (R 2 > 0.995). Therefore, the results show that the produced activated carbon can be used as a proper adsorbent for dye containing effluents.

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Section: Adsorption Of Methyl Orange By the Synthesized Activated Carbonmentioning

confidence: 99%

Adsorption capability of activated carbon synthesized from coconut shell

Islam¹,

Ang²,

Gharehkhani³

et al. 2016

Carbon letters

View full text Add to dashboard Cite

show abstract

“…Oriented solid samples were obtained as a suspension in a nematic liquid crystal of the 4'-cyano-4'-alkylbicyclohexyl type (ZLI 1695, Merck). This new orientation solid-state method [15] used in linear-dichroic infrared (IR-LD) spectroscopy for accuracy, precision and the influence of the liquid crystal medium on peak positions and integral absorbances of the guest molecule bands as well as the optimization of experimental conditions and an experimental design for quantitative evaluation of the impact of four input factors have been presented [16][17][18]. The nature and balance of the forces in the nematic liquid crystal suspension system, the mathematical model for their clearance, morphology of the suspended particles and the influence of the space system types on the degree of orientation i.e.…”

Section: Methodsmentioning

confidence: 99%

Solid-state linear polarized IR-spectroscopy of croconic and rhodizonic acids

Kolev¹,

Koleva

Spiteller

2008

Open Chemistry

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Abstract:The applications of linear-polarized IR-spectroscopy to oriented colloid suspensions in a nematic host are demonstrated with croconic and rhodizonic acids. The experimental IR vibrational assignments of the solid-state of both neutral compounds are presented. Assignments are supported by theoretical quantum chemical calculations and vibrational analysis at the DFT level of theoretical approximation with the 6-311++G** basis set.© Versita Warsaw and Springer-Verlag Berlin Heidelberg.

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“…A 4-cyano-4'-alkylbicyclohexyl mixture (ZLI-1695, Merck) was used as orientation host, applying the technique, colloid suspension in nematic liquid crystal [20][21][22][23]. The elemental analysis was performed according to the classical methods: C and H as CO 2 and H 2 O, N -through the Duma's method, chlorine -by titration with Hg(NO 3 ) 2 after a wet digestion of the sample.…”

Section: Methodsmentioning

confidence: 99%

Novel organic material with potential NLO application - electronic and spectroscopic properties

et al. 2008

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Novel dicyanoisophorone derivative, (E)-2-(3-(4-aminostyryl)-5,5-dimethylcyclohex-2-enylidene)malononitrile, is synthesized and its structure elucidated by means of conventional and linear polarized IR-spectroscopy of oriented colloids in nematic host, H-COSY NMR, HPLC tandem ESI MS-MS spectrometry, UV-VIS and thermal methods.Ab initio and DFT level of theory are used to theoretically obtain the electronic structure and optical properties, both in ground and exited state, of the compound.© Versita Warsaw and Springer-Verlag Berlin Heidelberg.

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Linear-dichroic infrared spectral analysis of Cu(I)–homocysteine complex

Cited by 108 publications

References 15 publications

Adsorption capability of activated carbon synthesized from coconut shell

Adsorption capability of activated carbon synthesized from coconut shell

Solid-state linear polarized IR-spectroscopy of croconic and rhodizonic acids

Novel organic material with potential NLO application - electronic and spectroscopic properties

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