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Oda A, Ohkubo T, Yumura T, et al. Synthesis of an unexpected [Zn2](2+) species utilizing an MFI-type zeolite as a nano-reaction pot and its manipulation with light and heat. Dalton Trans. 2015;44(21):10038-47doi: 10.1039/c5dt01088h.
Oda, A., Ohkubo, T., Yumura, T., Kobayashi, H., & Kuroda, Y. (2015). Synthesis of an unexpected [Zn2](2+) species utilizing an MFI-type zeolite as a nano-reaction pot and its manipulation with light and heat. Dalton transactions (Cambridge, England : 2003), 44(21), 10038-47. https://doi.org/10.1039/c5dt01088h
Oda, Akira, et al. "Synthesis of an unexpected [Zn2](2+) species utilizing an MFI-type zeolite as a nano-reaction pot and its manipulation with light and heat." Dalton transactions (Cambridge, England : 2003) vol. 44,21 (2015): 10038-47. doi: https://doi.org/10.1039/c5dt01088h
Oda A, Ohkubo T, Yumura T, Kobayashi H, Kuroda Y. Synthesis of an unexpected [Zn2](2+) species utilizing an MFI-type zeolite as a nano-reaction pot and its manipulation with light and heat. Dalton Trans. 2015 Jun 07;44(21):10038-47. doi: 10.1039/c5dt01088h. PMID: 25947340.
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Dalton Trans. 2015 Jun 07;44(21):10038-47. doi: 10.1039/c5dt01088h.

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

Dalton transactions (Cambridge, England : 2003)

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

Affiliations

  1. Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima, Kita-ku, Okayama 700-8530, Japan. [email protected].

PMID: 25947340 DOI: 10.1039/c5dt01088h

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 42 000 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.

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