Synthesis of an unexpected [Zn2]2+ species utilizing an MFI-type zeolite as a nano-reaction pot and its manipulation with light and heat

Akira Oda, Takahiro Ohkubo, Takashi Yumura, Hisayoshi Kobayashi, Yasushige Kuroda

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Compared with mercury, the existence of [Zn2]2+ species is rare. We succeeded in preparing a stable [Zn2]2+ species by utilizing an MFI-type zeolite as a nano-reaction pot, which was confirmed using XAFS spectroscopy: the bands at R = 2.35 Å due to the Zn+-Zn+ scattering and at 9660.7 eV due to the 1s-σ∗ (the anti-bonding orbital comprised of the 4s-4s orbital) transition of the [Zn2]2+ species. This species also gives the characteristic band around 42000 cm-1 due to its σ-σ∗ transition. Furthermore, UV-irradiation corresponding to the σ-σ∗ transition causes the bond dissociation, forming two unprecedented Zn+ ions, and detached Zn+ ions were recombined through heat-treatment at 573 K: [Zn+-Zn+] 2Zn+. These processes were reproduced by applying the DFT calculation method to the assumed triplet, σ(α)-σ∗(α), structure formed on the M7-S2 site with the specific Al array in the MFI-type zeolite. Research into the specific field using zeolites to synthesize "ultra-state ions" is very promising. This journal is

Original languageEnglish
Pages (from-to)10038-10047
Number of pages10
JournalDalton Transactions
Volume44
Issue number21
DOIs
Publication statusPublished - Jun 7 2015

ASJC Scopus subject areas

  • Inorganic Chemistry

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