Transfer of 2-Aminoethanethiolate (aet) from Nickel(II) to Cobalt(III) Coordination Sphere. Synthesis, Crystal Structure, and Some Properties of an S-Bridged Trinuclear Complex [Ni{Co(aet)2(en)}2]4+
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- Takumi Konno
- Department of Chemistry, University of TsukubaTsukuba, Ibaraki 305
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- Jinsai Hidaka
- Department of Industrial Chemistry, Faculty of Engineering, Kinki University in KyushuIizuka, Fukuoka 820
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- Ken-ichi Okamoto
- Department of Chemistry, University of TsukubaTsukuba, Ibaraki 305
説明
<jats:title>Abstract</jats:title> <jats:p>The reaction of [CoCl2(en)2]+ with [Ni(aet)2] in water gave an S-bridged CoIIINiIICoIII trinuclear complex, [Ni{Co(aet)2(en)}2]4+ (1), which indicates that the bidentate-N,S ligand aet transfers from the NiII to the CoIII coordination sphere. 1 formed only the racemic compound of Δ(C2-cis(S))Δ(C2-cis(S)) and Λ(C2-cis(S))Λ(C2-cis(S)) isomers, and its crystal structure was analyzed by X-ray diffraction. [Ni{Co(aet)2(en)}2]Cl4·6H2O, chemical formula C12H52N8O6S4Cl4Co2Ni, crystallizes in the monoclinic space group C2/c with a = 14.987(4), b = 19.480(3), c = 12.916(4) Å, β = 113.67(1)°, V = 3454(1) Å3, Z = 4, and R = 0.046. The central NiII atom is situated in an environment markedly distorted from a square-planar to a tetrahedral geometry, coordinated by four thiolato sulfur atoms from two octahedral C2-cis(S)-[Co(aet)2(en)]+ units. The H2O2 oxidation of 1 caused the cleavage of the Ni–S bonds to afford the mononuclear sulfinato complex, [Co(NH2CH2CH2SO2-N,S)2(en)]+ (2), retaining the C2-cis(S) geometry of 1. 1 and 2 were optically resolved and their absorption, CD, and NMR spectral behavior are reported.</jats:p>
収録刊行物
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- Bulletin of the Chemical Society of Japan
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Bulletin of the Chemical Society of Japan 68 (5), 1353-1359, 1995-05-01
Oxford University Press (OUP)
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詳細情報 詳細情報について
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- CRID
- 1360002219104139392
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- NII論文ID
- 130004149171
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- ISSN
- 13480634
- 00092673
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