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 | |
| Publication status | Published - 2002 Nov |
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ASJC Scopus subject areas
- Materials Chemistry
Cite this
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, 11.2002, p. 91-101.Research output: Contribution to journal › Article
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TY - JOUR
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
PY - 2002/11
Y1 - 2002/11
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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UR - http://www.scopus.com/inward/citedby.url?scp=0036871009&partnerID=8YFLogxK
U2 - 10.1016/S0151-9107(02)90017-6
DO - 10.1016/S0151-9107(02)90017-6
M3 - Article
AN - SCOPUS:0036871009
VL - 27
SP - 91
EP - 101
JO - Annales de Chimie: Science des Materiaux
JF - Annales de Chimie: Science des Materiaux
SN - 0151-9107
IS - 6
ER -