Spin-controlled fluorescence of chromophores organized on the surface of lipophilic linear iron (II) triazole complexes

Hiroyuki Matsukizono, Keita Kuroiwa, Nobuo Kimizuka

Research output: Contribution to conferencePaper

Abstract

Fe(II) triazole complexes have been attracting much interest due to their spin-crossover phenomenon which converts spin states by external stimuli. Recently, we have developed lipophilic Fe(II) triazole complexes which are disperse in organic media with maintaining the 1D polymer structures. To develop photofunctional Fe(II) triazole complexes in which fluorescence properties are regulated spin-crossover characteristics, we have newly synthesized lipophilic Fe(II) triazole complex [Fe(II)(1)3](Py-SO3 -)2 which contains 1-pyrenesulfonate ions as counter anions. The correlation between spin-crossover and fluorescent properties in the toluene solution state is investigated. This complex shows abrupt and reversible spin-crossover above room temperature in toluene. Interestingly, fluorescence intensity of pyrene chromophores incorporated on the surface of the 1D complex are highly quenched when Fe(II) ions are in the low spin state. Whereas, it is less quenched in the high spin state. Thus, photo relaxation processes of organic chromophores incorporated on the 1D Fe(II) triazole complex can be regulated depending on the spin-crossover characteristics.

Original languageEnglish
Pages4737-4738
Number of pages2
Publication statusPublished - Dec 1 2006
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan
Duration: Sep 20 2006Sep 22 2006

Other

Other55th Society of Polymer Science Japan Symposium on Macromolecules
CountryJapan
CityToyama
Period9/20/069/22/06

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Fingerprint Dive into the research topics of 'Spin-controlled fluorescence of chromophores organized on the surface of lipophilic linear iron (II) triazole complexes'. Together they form a unique fingerprint.

  • Cite this

    Matsukizono, H., Kuroiwa, K., & Kimizuka, N. (2006). Spin-controlled fluorescence of chromophores organized on the surface of lipophilic linear iron (II) triazole complexes. 4737-4738. Paper presented at 55th Society of Polymer Science Japan Symposium on Macromolecules, Toyama, Japan.