Formation of zwitterionic fullerodendron using a new DBN-focal dendron

Yutaka Takaguchi, Maki Hosokawa, Masatoshi Mayahara, Tomoyuki Tajima, Takahiro Sasamori, Norihiro Tokitoh

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A new poly(amidoamine) dendron having 1,5-diazabicyclo[4.3.0]non-5-ene (DBN) at the focal point was synthesized. Interestingly, formation of zwitterionic fullerodendrons (λmax = 930 nm for C60 and 795 nm for C70) were observed by Vis-NIR spectroscopy upon the reaction of C60 or C70 with the DBN-focal dendron. In particular, the C70 anion was effectively stabilized by the site isolation effect of the dendritic wedge. The half-life of fullerodendron 12b having C70 anion at the focal point reaches 7,345 min, which is 20 times longer than that of complex between C60 and pristine DBN. Furthermore, in order to confirm the structure of the zwitterionic complex, fullerodendron 12a was reprecipitated from benzonitrile/1,2,4-trimethylbenzene, and was observed using IR spectroscopy and APPI-MS.

Original languageEnglish
Pages (from-to)613-624
Number of pages12
JournalSensors
Volume10
Issue number1
DOIs
Publication statusPublished - Jan 2010

Fingerprint

Anions
Negative ions
anions
Near-Infrared Spectroscopy
half life
wedges
spectroscopy
Half-Life
Infrared spectroscopy
isolation
Spectrum Analysis
Spectroscopy
dendron
1,5-diazabicyclo(4.3.0)non-5-ene
pseudocumene
pristine (C60)
benzonitrile
Poly(amidoamine)

Keywords

  • DBN
  • Dendrimer
  • Fullerene
  • Fullerene anion
  • Fullerodendron

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Biochemistry

Cite this

Formation of zwitterionic fullerodendron using a new DBN-focal dendron. / Takaguchi, Yutaka; Hosokawa, Maki; Mayahara, Masatoshi; Tajima, Tomoyuki; Sasamori, Takahiro; Tokitoh, Norihiro.

In: Sensors, Vol. 10, No. 1, 01.2010, p. 613-624.

Research output: Contribution to journalArticle

Takaguchi, Y, Hosokawa, M, Mayahara, M, Tajima, T, Sasamori, T & Tokitoh, N 2010, 'Formation of zwitterionic fullerodendron using a new DBN-focal dendron', Sensors, vol. 10, no. 1, pp. 613-624. https://doi.org/10.3390/s100100613
Takaguchi, Yutaka ; Hosokawa, Maki ; Mayahara, Masatoshi ; Tajima, Tomoyuki ; Sasamori, Takahiro ; Tokitoh, Norihiro. / Formation of zwitterionic fullerodendron using a new DBN-focal dendron. In: Sensors. 2010 ; Vol. 10, No. 1. pp. 613-624.
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