<SUP>57</SUP>Fe Mössbauer, UV-visible, and FT-IR Study on Photoinduced Spin Transition of Fe<SUP>II</SUP> -Triazole Complex

• Mitsuoka Tadashi

  Department of Chemistry, Faculty of Science and Technology, Keio University

• Nakagawa Masaru

  Chemical Resources Laboratory, Tokyo Institute of Technology

• Iyoda Tomokazu

  Chemical Resources Laboratory, Tokyo Institute of Technology

• Einaga Yasuaki

  Department of Chemistry, Faculty of Science and Technology, Keio University

Bibliographic Information

Other Title

• 57Fe M^|^ouml;ssbauer, UV-visible, and FT-IR Study on Photoinduced Spin Transition of FeII -Triazole Complex

Abstract

We have synthesized a novel spin crossover Fe^II -triazole complex Fe (AZ-trz), where AZ-trz denotes 4-phenylazo-N-[1, 2, 4]triazole-4-yl-benzamide. ⁵⁷Fe Mössbauer spectra and magnetic susceptibility measurements of this compound exhibited a gradual spin crossover behavior by thermal change and also a light-induced excited spin state trapping (LIESST) effect. Both UV-visible absorption spectra and IR spectra confirmed the phenomena. The Fe^II high-spin, HS, state was induced by exciting a d-d electronic transition band of the Fe^II low-spin state species. Furthermore, the measurements revealed the lifetime of excited Fe^II HS state to be 1 min.

Journal

• Journal of Nuclear and Radiochemical Sciences

  Journal of Nuclear and Radiochemical Sciences 8 (1), 1-3, 2007

  The Japan Society of Nuclear and Radiochemical Sciences

Details

• CRID: 1390282679458077184
• NII Article ID: 10021101563
• NII Book ID: AA11948402
• DOI: 10.14494/jnrs2000.8.1
• COI: 1:CAS:528:DC%2BD2sXhtFemu7bE
• ISSN: 18835813
• ISSN: 13454749
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed