Role of molecular strain on the solid-state synthesis of coordination compounds from iron(II) chloride tetrahydrate and 1,10-phenanthroline under mechanical stress

Tadashi Ohshita; Daisuke Nakajima; Atsushi Tsukamoto; Naoko Tsuchiya; Tetsuhiko Isobe; Mamoru Senna; Naoki Yoshioka; Hidenari Inoue

doi:10.1016/S0151-9107(02)90017-6

Role of molecular strain on the solid-state synthesis of coordination compounds from iron(II) chloride tetrahydrate and 1,10-phenanthroline under mechanical stress

Tadashi Ohshita, Daisuke Nakajima, Atsushi Tsukamoto, Naoko Tsuchiya, Tetsuhiko Isobe, Mamoru Senna, Naoki Yoshioka, Hidenari Inoue

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

A powdered crystalline mixture of iron(II) chloride tetrahydrate (FeCl₂·4H₂O) and 1,10-phenanthroline (phen) was subjected to mechanical stressing in Ar by a planetary ball-mill. By milling for 3h, the mixture turned completely non-crystalline. New IR absorption bands appeared simultaneously at 358cm^-1 due to Fe-N(phen) stretching and at 207cm^-1 due to N-Fe-N(phen) bending for [Fe(phen)₃]²⁺. Only a doublet peak due to [Fe(phen)₃]Cl₂·nH₂O was detected in the Mössbauer spectrum. All these results indicate consistently the formation of [Fe(phen)₃]Cl₂·nH₂O by milling with an almost quantitative yield. Disproportionation of the hydrated water molecules was observed after milling FeCl₂·4H₂O alone for 3h. The molecular strain triggers a solid-state exchange reaction between H₂O and phen at the contact point of two dissimilar solid particles under mechanical stressing, and promotes formation of [Fe(phen)₃]Cl₂·nH₂O in the solid state.

Original language	English
Pages (from-to)	91-101
Number of pages	11
Journal	Annales de Chimie: Science des Materiaux
Volume	27
Issue number	6
DOIs	https://doi.org/10.1016/S0151-9107(02)90017-6
Publication status	Published - 2002

ASJC Scopus subject areas

Materials Chemistry

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Ohshita, T., Nakajima, D., Tsukamoto, A., Tsuchiya, N., Isobe, T., Senna, M., Yoshioka, N., & Inoue, H. (2002). Role of molecular strain on the solid-state synthesis of coordination compounds from iron(II) chloride tetrahydrate and 1,10-phenanthroline under mechanical stress. Annales de Chimie: Science des Materiaux, 27(6), 91-101. https://doi.org/10.1016/S0151-9107(02)90017-6

Role of molecular strain on the solid-state synthesis of coordination compounds from iron(II) chloride tetrahydrate and 1,10-phenanthroline under mechanical stress. / Ohshita, Tadashi; Nakajima, Daisuke; Tsukamoto, Atsushi; Tsuchiya, Naoko; Isobe, Tetsuhiko; Senna, Mamoru; Yoshioka, Naoki; Inoue, Hidenari.

In: Annales de Chimie: Science des Materiaux, Vol. 27, No. 6, 2002, p. 91-101.

Research output: Contribution to journal › Article › peer-review

Ohshita, T, Nakajima, D, Tsukamoto, A, Tsuchiya, N, Isobe, T, Senna, M, Yoshioka, N & Inoue, H 2002, 'Role of molecular strain on the solid-state synthesis of coordination compounds from iron(II) chloride tetrahydrate and 1,10-phenanthroline under mechanical stress', Annales de Chimie: Science des Materiaux, vol. 27, no. 6, pp. 91-101. https://doi.org/10.1016/S0151-9107(02)90017-6

Ohshita, Tadashi ; Nakajima, Daisuke ; Tsukamoto, Atsushi ; Tsuchiya, Naoko ; Isobe, Tetsuhiko ; Senna, Mamoru ; Yoshioka, Naoki ; Inoue, Hidenari. / Role of molecular strain on the solid-state synthesis of coordination compounds from iron(II) chloride tetrahydrate and 1,10-phenanthroline under mechanical stress. In: Annales de Chimie: Science des Materiaux. 2002 ; Vol. 27, No. 6. pp. 91-101.

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title = "Role of molecular strain on the solid-state synthesis of coordination compounds from iron(II) chloride tetrahydrate and 1,10-phenanthroline under mechanical stress",

abstract = "A powdered crystalline mixture of iron(II) chloride tetrahydrate (FeCl2·4H2O) and 1,10-phenanthroline (phen) was subjected to mechanical stressing in Ar by a planetary ball-mill. By milling for 3h, the mixture turned completely non-crystalline. New IR absorption bands appeared simultaneously at 358cm-1 due to Fe-N(phen) stretching and at 207cm-1 due to N-Fe-N(phen) bending for [Fe(phen)3]2+. Only a doublet peak due to [Fe(phen)3]Cl2·nH2O was detected in the M{\"o}ssbauer spectrum. All these results indicate consistently the formation of [Fe(phen)3]Cl2·nH2O by milling with an almost quantitative yield. Disproportionation of the hydrated water molecules was observed after milling FeCl2·4H2O alone for 3h. The molecular strain triggers a solid-state exchange reaction between H2O and phen at the contact point of two dissimilar solid particles under mechanical stressing, and promotes formation of [Fe(phen)3]Cl2·nH2O in the solid state.",

author = "Tadashi Ohshita and Daisuke Nakajima and Atsushi Tsukamoto and Naoko Tsuchiya and Tetsuhiko Isobe and Mamoru Senna and Naoki Yoshioka and Hidenari Inoue",

note = "Funding Information: We thank Prof. C. Bansal of Hyderabad University for valuable discussion. This work was supported by the Grant-in-Aid for Scientific Researches (No. 09490033) from the Ministry of Education, Science, Sports and Culture of Japan.",

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doi = "10.1016/S0151-9107(02)90017-6",

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T1 - Role of molecular strain on the solid-state synthesis of coordination compounds from iron(II) chloride tetrahydrate and 1,10-phenanthroline under mechanical stress

AU - Ohshita, Tadashi

AU - Nakajima, Daisuke

AU - Tsukamoto, Atsushi

AU - Tsuchiya, Naoko

AU - Isobe, Tetsuhiko

AU - Senna, Mamoru

AU - Yoshioka, Naoki

AU - Inoue, Hidenari

N1 - Funding Information: We thank Prof. C. Bansal of Hyderabad University for valuable discussion. This work was supported by the Grant-in-Aid for Scientific Researches (No. 09490033) from the Ministry of Education, Science, Sports and Culture of Japan.

PY - 2002

Y1 - 2002

N2 - A powdered crystalline mixture of iron(II) chloride tetrahydrate (FeCl2·4H2O) and 1,10-phenanthroline (phen) was subjected to mechanical stressing in Ar by a planetary ball-mill. By milling for 3h, the mixture turned completely non-crystalline. New IR absorption bands appeared simultaneously at 358cm-1 due to Fe-N(phen) stretching and at 207cm-1 due to N-Fe-N(phen) bending for [Fe(phen)3]2+. Only a doublet peak due to [Fe(phen)3]Cl2·nH2O was detected in the Mössbauer spectrum. All these results indicate consistently the formation of [Fe(phen)3]Cl2·nH2O by milling with an almost quantitative yield. Disproportionation of the hydrated water molecules was observed after milling FeCl2·4H2O alone for 3h. The molecular strain triggers a solid-state exchange reaction between H2O and phen at the contact point of two dissimilar solid particles under mechanical stressing, and promotes formation of [Fe(phen)3]Cl2·nH2O in the solid state.

AB - A powdered crystalline mixture of iron(II) chloride tetrahydrate (FeCl2·4H2O) and 1,10-phenanthroline (phen) was subjected to mechanical stressing in Ar by a planetary ball-mill. By milling for 3h, the mixture turned completely non-crystalline. New IR absorption bands appeared simultaneously at 358cm-1 due to Fe-N(phen) stretching and at 207cm-1 due to N-Fe-N(phen) bending for [Fe(phen)3]2+. Only a doublet peak due to [Fe(phen)3]Cl2·nH2O was detected in the Mössbauer spectrum. All these results indicate consistently the formation of [Fe(phen)3]Cl2·nH2O by milling with an almost quantitative yield. Disproportionation of the hydrated water molecules was observed after milling FeCl2·4H2O alone for 3h. The molecular strain triggers a solid-state exchange reaction between H2O and phen at the contact point of two dissimilar solid particles under mechanical stressing, and promotes formation of [Fe(phen)3]Cl2·nH2O in the solid state.

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Role of molecular strain on the solid-state synthesis of coordination compounds from iron(II) chloride tetrahydrate and 1,10-phenanthroline under mechanical stress

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