Hydrophilic [60]Fullerene Carboxylic Acid Derivatives Retaining the Original 60π Electronic System.

Periya, Vijayalakshmi K.; Koike, Inami; Kitamura, Yukihiro; Iwamatsu, Sho‐ichi; Murata, Shizuaki

doi:10.1002/chin.200505093

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“…The clear broad peak at 3395 cm À1 within the range of 3600-3100 cm À1 indicates the characteristic O-H stretching, which does not appear in the IR spectrum of pristine C 60 ( Fig. 4b) but has been reported to be present also in the IR spectrum of pristine C 60 (OH) 12 ( Fig. 4c), 24 thus this initially conrms the attachment of -OH groups onto the C 60 cage aer functionalization.…”

Section: Identication Of -Oh Groupsmentioning

confidence: 99%

“…NaOH, H 2 SO 4 , and PTC (causes impurities in fullerenol), which is a cleaner approach to produce fullerenol in an easier and a faster way. Previously, C 60 (OH) 12 was used as a starting material to synthesize highly soluble fullerenols [C 60 (OH) 36 , C 60 (OH) 40 ] by vigorously stirring 24 , C 60 (OH) 36 and C 60 (OH) 40 . Moreover, compounds that express specic biochemical functions, which are required for diagnostics as well as drug therapy studies, can be derivatized from C 60 (OH) 8 $2H 2 O by conjugating it with other potential functional groups or biomolecules.…”

Section: Future Prospectsmentioning

confidence: 99%

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Hydration or hydroxylation: direct synthesis of fullerenol from pristine fullerene [C₆₀] via acoustic cavitation in the presence of hydrogen peroxide

et al. 2017

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A green and clean approach that requires low energy and avoids the use of any toxic or corrosive reagents/ solvents for the synthesis of potential fullerenol moieties [C 60 (OH) n $mH 2 O] was proposed in this investigation, in which pristine fullerene (C 60 ) in dil. H 2 O 2 (30%) aqueous media was ultrasonicated (20 kHz, 200 W) at 30% amplitude for 1 h. The attachment of hydroxyl groups (-OH) was investigated via FTIR and the quantification of -OH groups attached to the C 60 cage was conducted via elemental analysis. The number of secondary bound water molecules (mH 2 O) with each fullerenol molecule [C 60 (OH) n ] was measured via TGA, and the estimated average structure of fullerenol was calculated to be C 60 (OH) 8 $2H 2 O. The synthesized fullerenol was moderately soluble in water and DMSO. Furthermore, the size of the synthesized C 60 (OH) 8 $2H 2 O particles determined by both AFM and DLS analysis was found to be in the range of 135-155 nm. The proposed ultrasound-assisted acoustic cavitation technique encompasses a one-step facile reaction strategy, requires less time for the reaction, and reduces the number of solvents required for the separation and purification of C 60 (OH) 8 $2H 2 O, which could be scalable for the commercial synthesis of fullerenol moieties in the future.

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Section: Identication Of -Oh Groupsmentioning

confidence: 99%

Section: Future Prospectsmentioning

confidence: 99%

Hydration or hydroxylation: direct synthesis of fullerenol from pristine fullerene [C₆₀] via acoustic cavitation in the presence of hydrogen peroxide

et al. 2017

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show abstract

Hydrophilic [60]Fullerene Carboxylic Acid Derivatives Retaining the Original 60π Electronic System.

Cited by 1 publication

References 1 publication

Hydration or hydroxylation: direct synthesis of fullerenol from pristine fullerene [C₆₀] via acoustic cavitation in the presence of hydrogen peroxide

Hydration or hydroxylation: direct synthesis of fullerenol from pristine fullerene [C₆₀] via acoustic cavitation in the presence of hydrogen peroxide

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Hydrophilic [60]Fullerene Carboxylic Acid Derivatives Retaining the Original 60π Electronic System.

Cited by 1 publication

References 1 publication

Hydration or hydroxylation: direct synthesis of fullerenol from pristine fullerene [C60] via acoustic cavitation in the presence of hydrogen peroxide

Hydration or hydroxylation: direct synthesis of fullerenol from pristine fullerene [C60] via acoustic cavitation in the presence of hydrogen peroxide

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Hydration or hydroxylation: direct synthesis of fullerenol from pristine fullerene [C₆₀] via acoustic cavitation in the presence of hydrogen peroxide

Hydration or hydroxylation: direct synthesis of fullerenol from pristine fullerene [C₆₀] via acoustic cavitation in the presence of hydrogen peroxide