Structure and electrochemistry of the bridging-ligand mono-substituted diruthenium compound, [Ru2(II,III)(O2CCH3)3(admpym) (Cl)(MeOH)] (Hadmpym=2-amino-4,6-dimethylpyrimidine)

Chihiro Kachi-Terajima; Hitoshi Miyasaka; Tomohiko Ishii; Ken ichi Sugiura; Masahiro Yamashita

doi:10.1016/S0020-1693(02)00712-0

Structure and electrochemistry of the bridging-ligand mono-substituted diruthenium compound, [Ru₂(II,III)(O₂CCH₃)₃(admpym) (Cl)(MeOH)] (Hadmpym=2-amino-4,6-dimethylpyrimidine)

Chihiro Kachi-Terajima, Hitoshi Miyasaka, Tomohiko Ishii, Ken ichi Sugiura, Masahiro Yamashita

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

12 Citations (Scopus)

Abstract

The ligand substitution reaction of Ru₂(O₂CCH₃)₄Cl with 2-amino-4,6-dimethylpyrimidine (Hadmpym) under gentle refluxing conditions in methanol led to the formation of a bridging-ligand mono-substituted compound, [Ru₂(O₂CCH₃)₃(admpym)(Cl)(MeOH)] (1). Compound 1 crystallized in monoclinic space group P2₁/n (no. 14) with a=8.3074(8) Å, b=12.3722(8) Å, c=18.913(1) Å, β=95.559(3)°, V=1934.8(3) Å³, and Z=4. Temperature dependence of the magnetic susceptibility of 1 revealed it to be in a spin ground state S=3/2 arising from the electronic configuration of σ²π⁴δ²(δ* π*)³. Compound 1 undergoes three metal-centered redox reactions in electrochemistry: E_1/2^(ox)=+0.72 V (I_a/I_c<1, ΔE_p=0.17 V); E_1/2^(1,red)=-0.65 V (I_a/I_c≈1, ΔE_p=0.10 V); and E_1/2^(2,red)=-1.80 V (I_a/I_c≪1, ΔE_p=0.16 V). Then, the redox species produced by electrolysis were characterized by spectroscopic studies.

Original language	English
Pages (from-to)	210-215
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	332
Issue number	1
DOIs	https://doi.org/10.1016/S0020-1693(02)00712-0
Publication status	Published - 2002 Apr 17
Externally published	Yes

Keywords

Crystal structures
Diruthenium compounds
Electrochemistry
Metal-metal bond
Redox species
Spectroscopic studies

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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Structure and electrochemistry of the bridging-ligand mono-substituted diruthenium compound, [Ru₂(II,III)(O₂CCH₃)₃(admpym) (Cl)(MeOH)] (Hadmpym=2-amino-4,6-dimethylpyrimidine). / Kachi-Terajima, Chihiro; Miyasaka, Hitoshi; Ishii, Tomohiko; Sugiura, Ken ichi; Yamashita, Masahiro.

In: Inorganica Chimica Acta, Vol. 332, No. 1, 17.04.2002, p. 210-215.

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

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title = "Structure and electrochemistry of the bridging-ligand mono-substituted diruthenium compound, [Ru2(II,III)(O2CCH3)3(admpym) (Cl)(MeOH)] (Hadmpym=2-amino-4,6-dimethylpyrimidine)",

abstract = "The ligand substitution reaction of Ru2(O2CCH3)4Cl with 2-amino-4,6-dimethylpyrimidine (Hadmpym) under gentle refluxing conditions in methanol led to the formation of a bridging-ligand mono-substituted compound, [Ru2(O2CCH3)3(admpym)(Cl)(MeOH)] (1). Compound 1 crystallized in monoclinic space group P21/n (no. 14) with a=8.3074(8) {\AA}, b=12.3722(8) {\AA}, c=18.913(1) {\AA}, β=95.559(3)°, V=1934.8(3) {\AA}3, and Z=4. Temperature dependence of the magnetic susceptibility of 1 revealed it to be in a spin ground state S=3/2 arising from the electronic configuration of σ2π4δ2(δ* π*)3. Compound 1 undergoes three metal-centered redox reactions in electrochemistry: E1/2(ox)=+0.72 V (Ia/Ic<1, ΔEp=0.17 V); E1/2(1,red)=-0.65 V (Ia/Ic≈1, ΔEp=0.10 V); and E1/2(2,red)=-1.80 V (Ia/Ic≪1, ΔEp=0.16 V). Then, the redox species produced by electrolysis were characterized by spectroscopic studies.",

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AU - Kachi-Terajima, Chihiro

AU - Miyasaka, Hitoshi

AU - Ishii, Tomohiko

AU - Sugiura, Ken ichi

AU - Yamashita, Masahiro

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N2 - The ligand substitution reaction of Ru2(O2CCH3)4Cl with 2-amino-4,6-dimethylpyrimidine (Hadmpym) under gentle refluxing conditions in methanol led to the formation of a bridging-ligand mono-substituted compound, [Ru2(O2CCH3)3(admpym)(Cl)(MeOH)] (1). Compound 1 crystallized in monoclinic space group P21/n (no. 14) with a=8.3074(8) Å, b=12.3722(8) Å, c=18.913(1) Å, β=95.559(3)°, V=1934.8(3) Å3, and Z=4. Temperature dependence of the magnetic susceptibility of 1 revealed it to be in a spin ground state S=3/2 arising from the electronic configuration of σ2π4δ2(δ* π*)3. Compound 1 undergoes three metal-centered redox reactions in electrochemistry: E1/2(ox)=+0.72 V (Ia/Ic<1, ΔEp=0.17 V); E1/2(1,red)=-0.65 V (Ia/Ic≈1, ΔEp=0.10 V); and E1/2(2,red)=-1.80 V (Ia/Ic≪1, ΔEp=0.16 V). Then, the redox species produced by electrolysis were characterized by spectroscopic studies.

AB - The ligand substitution reaction of Ru2(O2CCH3)4Cl with 2-amino-4,6-dimethylpyrimidine (Hadmpym) under gentle refluxing conditions in methanol led to the formation of a bridging-ligand mono-substituted compound, [Ru2(O2CCH3)3(admpym)(Cl)(MeOH)] (1). Compound 1 crystallized in monoclinic space group P21/n (no. 14) with a=8.3074(8) Å, b=12.3722(8) Å, c=18.913(1) Å, β=95.559(3)°, V=1934.8(3) Å3, and Z=4. Temperature dependence of the magnetic susceptibility of 1 revealed it to be in a spin ground state S=3/2 arising from the electronic configuration of σ2π4δ2(δ* π*)3. Compound 1 undergoes three metal-centered redox reactions in electrochemistry: E1/2(ox)=+0.72 V (Ia/Ic<1, ΔEp=0.17 V); E1/2(1,red)=-0.65 V (Ia/Ic≈1, ΔEp=0.10 V); and E1/2(2,red)=-1.80 V (Ia/Ic≪1, ΔEp=0.16 V). Then, the redox species produced by electrolysis were characterized by spectroscopic studies.

KW - Crystal structures

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