Formation of the intermediate, aquohydroxobis (ethylenediamine)cobalt(III) complex, in the preparation of cis-bromoamminebis (ethylenediamine)cobalt(III) bromide by the reaction of bis[bis(ethylenediamine)cobalt(III)-μ-dihydroxo]diaquocobalt(II) sulfate with ammonium bromide in water

Kouichi Asakura; Kazuya Inoue; Shuichi Osanai; Dilip K. Kondepudi

doi:10.1080/00958979808053727

Formation of the intermediate, aquohydroxobis (ethylenediamine)cobalt(III) complex, in the preparation of cis-bromoamminebis (ethylenediamine)cobalt(III) bromide by the reaction of bis[bis(ethylenediamine)cobalt(III)-μ-dihydroxo]diaquocobalt(II) sulfate with ammonium bromide in water

Kouichi Asakura, Kazuya Inoue, Shuichi Osanai, Dilip K. Kondepudi

Department of Applied Chemistry

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

14 Citations (Scopus)

Abstract

The production of cis-[CoBr(NH₃)(en)₂]Br₂ by reaction of [Co(H₂O)₂{(OH)₂Co(en)₂} ₂](SO₄)₂ with ammonium bromide in water was investigated. The reaction seems to proceed through the intermediate. [Co(H₂O)(OH)(en)₂]²⁺, and then convert to the product, cis-[CoBr(NH₃)(en)₂]²⁺. This is supported by the observation that the absorption spectrum of the reaction solution immediately after the disappearance of the starting complex was different from that of cis-[CoBr(NH₃)(en)₂]²⁺ but was quite similar to that of [Co(H₂O)(OH)(en)₂]²⁺. In order to confirm this reaction pathway, cis-[Co(H₂O)(OH)(en)₂]Br₂ was prepared and reacted with ammonium bromide producing the expected complex, cis-[CoBr(NH₃)(en)₂]Br₂.

Original language	English
Pages (from-to)	159-164
Number of pages	6
Journal	Journal of Coordination Chemistry
Volume	46
Issue number	2
DOIs	https://doi.org/10.1080/00958979808053727
Publication status	Published - 1998

Keywords

Ammonium bromide
Cobalt
Ethylenediamine
Intermediate
Reaction mechanisms

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Materials Chemistry

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Asakura, K., Inoue, K., Osanai, S., & Kondepudi, D. K. (1998). Formation of the intermediate, aquohydroxobis (ethylenediamine)cobalt(III) complex, in the preparation of cis-bromoamminebis (ethylenediamine)cobalt(III) bromide by the reaction of bis[bis(ethylenediamine)cobalt(III)-μ-dihydroxo]diaquocobalt(II) sulfate with ammonium bromide in water. Journal of Coordination Chemistry, 46(2), 159-164. https://doi.org/10.1080/00958979808053727

Formation of the intermediate, aquohydroxobis (ethylenediamine)cobalt(III) complex, in the preparation of cis-bromoamminebis (ethylenediamine)cobalt(III) bromide by the reaction of bis[bis(ethylenediamine)cobalt(III)-μ-dihydroxo]diaquocobalt(II) sulfate with ammonium bromide in water. / Asakura, Kouichi; Inoue, Kazuya; Osanai, Shuichi et al.
In: Journal of Coordination Chemistry, Vol. 46, No. 2, 1998, p. 159-164.

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

Asakura, K, Inoue, K, Osanai, S & Kondepudi, DK 1998, 'Formation of the intermediate, aquohydroxobis (ethylenediamine)cobalt(III) complex, in the preparation of cis-bromoamminebis (ethylenediamine)cobalt(III) bromide by the reaction of bis[bis(ethylenediamine)cobalt(III)-μ-dihydroxo]diaquocobalt(II) sulfate with ammonium bromide in water', Journal of Coordination Chemistry, vol. 46, no. 2, pp. 159-164. https://doi.org/10.1080/00958979808053727

Asakura K, Inoue K, Osanai S, Kondepudi DK. Formation of the intermediate, aquohydroxobis (ethylenediamine)cobalt(III) complex, in the preparation of cis-bromoamminebis (ethylenediamine)cobalt(III) bromide by the reaction of bis[bis(ethylenediamine)cobalt(III)-μ-dihydroxo]diaquocobalt(II) sulfate with ammonium bromide in water. Journal of Coordination Chemistry. 1998;46(2):159-164. doi: 10.1080/00958979808053727

Asakura, Kouichi ; Inoue, Kazuya ; Osanai, Shuichi et al. / Formation of the intermediate, aquohydroxobis (ethylenediamine)cobalt(III) complex, in the preparation of cis-bromoamminebis (ethylenediamine)cobalt(III) bromide by the reaction of bis[bis(ethylenediamine)cobalt(III)-μ-dihydroxo]diaquocobalt(II) sulfate with ammonium bromide in water. In: Journal of Coordination Chemistry. 1998 ; Vol. 46, No. 2. pp. 159-164.

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abstract = "The production of cis-[CoBr(NH3)(en)2]Br2 by reaction of [Co(H2O)2{(OH)2Co(en)2} 2](SO4)2 with ammonium bromide in water was investigated. The reaction seems to proceed through the intermediate. [Co(H2O)(OH)(en)2]2+, and then convert to the product, cis-[CoBr(NH3)(en)2]2+. This is supported by the observation that the absorption spectrum of the reaction solution immediately after the disappearance of the starting complex was different from that of cis-[CoBr(NH3)(en)2]2+ but was quite similar to that of [Co(H2O)(OH)(en)2]2+. In order to confirm this reaction pathway, cis-[Co(H2O)(OH)(en)2]Br2 was prepared and reacted with ammonium bromide producing the expected complex, cis-[CoBr(NH3)(en)2]Br2.",

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author = "Kouichi Asakura and Kazuya Inoue and Shuichi Osanai and Kondepudi, {Dilip K.}",

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AU - Asakura, Kouichi

AU - Inoue, Kazuya

AU - Osanai, Shuichi

AU - Kondepudi, Dilip K.

PY - 1998

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N2 - The production of cis-[CoBr(NH3)(en)2]Br2 by reaction of [Co(H2O)2{(OH)2Co(en)2} 2](SO4)2 with ammonium bromide in water was investigated. The reaction seems to proceed through the intermediate. [Co(H2O)(OH)(en)2]2+, and then convert to the product, cis-[CoBr(NH3)(en)2]2+. This is supported by the observation that the absorption spectrum of the reaction solution immediately after the disappearance of the starting complex was different from that of cis-[CoBr(NH3)(en)2]2+ but was quite similar to that of [Co(H2O)(OH)(en)2]2+. In order to confirm this reaction pathway, cis-[Co(H2O)(OH)(en)2]Br2 was prepared and reacted with ammonium bromide producing the expected complex, cis-[CoBr(NH3)(en)2]Br2.

AB - The production of cis-[CoBr(NH3)(en)2]Br2 by reaction of [Co(H2O)2{(OH)2Co(en)2} 2](SO4)2 with ammonium bromide in water was investigated. The reaction seems to proceed through the intermediate. [Co(H2O)(OH)(en)2]2+, and then convert to the product, cis-[CoBr(NH3)(en)2]2+. This is supported by the observation that the absorption spectrum of the reaction solution immediately after the disappearance of the starting complex was different from that of cis-[CoBr(NH3)(en)2]2+ but was quite similar to that of [Co(H2O)(OH)(en)2]2+. In order to confirm this reaction pathway, cis-[Co(H2O)(OH)(en)2]Br2 was prepared and reacted with ammonium bromide producing the expected complex, cis-[CoBr(NH3)(en)2]Br2.

KW - Ammonium bromide

KW - Cobalt

KW - Ethylenediamine

KW - Intermediate

KW - Reaction mechanisms

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Formation of the intermediate, aquohydroxobis (ethylenediamine)cobalt(III) complex, in the preparation of cis-bromoamminebis (ethylenediamine)cobalt(III) bromide by the reaction of bis[bis(ethylenediamine)cobalt(III)-μ-dihydroxo]diaquocobalt(II) sulfate with ammonium bromide in water

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