A comparison of the loop-current effect of silicon phthalocyanine and silicon naphthalocyanine rings on their axial ligands

Toshiki Koyama, Takahiko Suzuki, Kenji Hanabusa, Hirofusa Shirai, Nagao Kobayashi

研究成果: Article査読

26 被引用数 (Scopus)

抄録

Silicone phthalocyanine (SiPc) and naphthalocyanine (SiNc) containing two n-dodecyloxy axial ligands were synthesized and their NMR spectra were recorded. The effect of the Pc or Nc ring current on their axial ligands was compared between the two systems by using chemical shifts. The ring current effect was larger for Pc in the close vicinity of the molecular center, but at a higher point (about 10 or more carbon atoms) that by the Nc ring becomes stronger. The effect was calculated by computer on the basis of the loop-current effect of π- electrons. Thus, a five- or nine-loop model was used for the Pc or Nc ring, respectively. In close accord with the above experimental results, calculations indicate that the loop-current effect of Pc is larger in the close vicinity of the molecular center but at a distance of more than c. 5 Å from the molecular center that of the Nc ring becomes larger.

本文言語English
ページ(範囲)41-45
ページ数5
ジャーナルInorganica Chimica Acta
218
1-2
DOI
出版ステータスPublished - 1994 4

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

フィンガープリント 「A comparison of the loop-current effect of silicon phthalocyanine and silicon naphthalocyanine rings on their axial ligands」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル