Molecular structure and spectroscopic properties of [2,3,9,10,16,17,23,24-octakis(3-carboxyphenoxy)phthalocyaninato-κ4N](pyridine-κN)zinc(ii) pyridine octasolvate

Rei Fujishiro, Hayato Sonoyama, Yuki Ide, Shigeki Mori*, Tamotsu Sugimori, Atsushi Nagai, Katsumi Yoshino, Mikio Nakamura, Takahisa Ikeue

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The title complex, [2,3,9,10,16,17,23,24-octakis(3-carboxyphenoxy)-phthalocyaninato-k 4N](pyridine-kN)zinc(II)pyridine octasolvate abbreviated as [ZnPc(3-CO2H)8(Py)]'8(Py) (2), has been obtained by recrystallization of [ZnPc(3-CO2H)8] (1) from pyridine. Molecular structure of 2 determined by X-ray crystallography exhibits the anticipated N5 square pyramidal coordination around zinc(II) ion, where the average Zn-N(Pc) and Zn-N(Py) bond lengths are 2.027(4) Å and 2.121(4) Å, respectively. The deviation of the zinc(II) ion from phthalocyanine N4 plane is 0.417 Å. Eight pyridine molecules are involved in hydrogen bonding with the carboxylic acid moieties of phenoxy rings in a 1:1 Two discrete phthalocyanine molecules in a unit cell are stacked in a back-to-back fashion with an interplanar distance of 3.376 Å. Pyridine solutions of 1 exhibit well-resolved 1H NMR, UV-Vis, and fluorescent spectra, suggesting that 1 exists pyridine ligated monomeric species.

Original languageEnglish
Pages (from-to)131-139
Number of pages9
JournalHeterocycles
Volume94
Issue number1
DOIs
StatePublished - 2017

ASJC Scopus subject areas

  • Analytical Chemistry
  • Pharmacology
  • Organic Chemistry

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