Preparation and characterization of [MIII(SeCH2CH2NH2){N(CH2CH2NH2)3}]2+ (MIII = Co, Rh) and molecular structure of the perchlorate of the rhodium(III) complex

Kiyohiko Nakajima, Masaaki Kojima, Junnosuke Fujita, Toshio Ishii, Shigeru Ohba, Masatoki Ito, Yoshihiko Saito

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Abstract

By reaction of [RhCl2(tren)]+ (tren = tris(2-aminoethyl)amine) with CH3SeCH2CH2NH2 in water in the presence of NaBH4, or in its absence in ethanol, only one of the two geometrical isomers of [Rh(SeCH2CH2NH2)(tren)]2+ was formed. Both of the two geometrical isomers of the corresponding CoIII complex were formed by the reaction of CoII-tren species with (NH2CH2CH2Se-)2. The structure of the RhIII complex was determined by the X-ray method. Crystal data [Rh(C2H6NSe)(C6H18N4)](ClO4)2, monoclinic, space group P21/c, a = 9.012(1), b = 14.438(1), c = 14.550(4) Å, β = 104.81(1)°, and Z = 4. The final R value was 0.026. The complex ion has a distorted octahedral structure with cis(tertiary amine nitrogen, Se) configuration. The RhN bond length for the amine nitrogen bonded trans to the selenium atom is longer by 0.039(6) Å than the average cis RhN distance for the two other primary amine nitrogen of the tren ligand, indicating rans influence of the selenium atom.

Original languageEnglish
Pages (from-to)143-147
Number of pages5
JournalInorganica Chimica Acta
Volume99
Issue number2
DOIs
Publication statusPublished - 1985 May 1

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Rhodium
perchlorates
Molecular Structure
rhodium
Molecular structure
Amines
amines
molecular structure
Nitrogen
Selenium
Isomers
preparation
selenium
nitrogen
Atoms
isomers
Bond length
Ethanol
X-Rays
Ions

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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Preparation and characterization of [MIII(SeCH2CH2NH2){N(CH2CH2NH2)3}]2+ (MIII = Co, Rh) and molecular structure of the perchlorate of the rhodium(III) complex. / Nakajima, Kiyohiko; Kojima, Masaaki; Fujita, Junnosuke; Ishii, Toshio; Ohba, Shigeru; Ito, Masatoki; Saito, Yoshihiko.

In: Inorganica Chimica Acta, Vol. 99, No. 2, 01.05.1985, p. 143-147.

Research output: Contribution to journalArticle

Nakajima, Kiyohiko ; Kojima, Masaaki ; Fujita, Junnosuke ; Ishii, Toshio ; Ohba, Shigeru ; Ito, Masatoki ; Saito, Yoshihiko. / Preparation and characterization of [MIII(SeCH2CH2NH2){N(CH2CH2NH2)3}]2+ (MIII = Co, Rh) and molecular structure of the perchlorate of the rhodium(III) complex. In: Inorganica Chimica Acta. 1985 ; Vol. 99, No. 2. pp. 143-147.
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abstract = "By reaction of [RhCl2(tren)]+ (tren = tris(2-aminoethyl)amine) with CH3SeCH2CH2NH2 in water in the presence of NaBH4, or in its absence in ethanol, only one of the two geometrical isomers of [Rh(SeCH2CH2NH2)(tren)]2+ was formed. Both of the two geometrical isomers of the corresponding CoIII complex were formed by the reaction of CoII-tren species with (NH2CH2CH2Se-)2. The structure of the RhIII complex was determined by the X-ray method. Crystal data [Rh(C2H6NSe)(C6H18N4)](ClO4)2, monoclinic, space group P21/c, a = 9.012(1), b = 14.438(1), c = 14.550(4) {\AA}, β = 104.81(1)°, and Z = 4. The final R value was 0.026. The complex ion has a distorted octahedral structure with cis(tertiary amine nitrogen, Se) configuration. The RhN bond length for the amine nitrogen bonded trans to the selenium atom is longer by 0.039(6) {\AA} than the average cis RhN distance for the two other primary amine nitrogen of the tren ligand, indicating rans influence of the selenium atom.",
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T1 - Preparation and characterization of [MIII(SeCH2CH2NH2){N(CH2CH2NH2)3}]2+ (MIII = Co, Rh) and molecular structure of the perchlorate of the rhodium(III) complex

AU - Nakajima, Kiyohiko

AU - Kojima, Masaaki

AU - Fujita, Junnosuke

AU - Ishii, Toshio

AU - Ohba, Shigeru

AU - Ito, Masatoki

AU - Saito, Yoshihiko

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AB - By reaction of [RhCl2(tren)]+ (tren = tris(2-aminoethyl)amine) with CH3SeCH2CH2NH2 in water in the presence of NaBH4, or in its absence in ethanol, only one of the two geometrical isomers of [Rh(SeCH2CH2NH2)(tren)]2+ was formed. Both of the two geometrical isomers of the corresponding CoIII complex were formed by the reaction of CoII-tren species with (NH2CH2CH2Se-)2. The structure of the RhIII complex was determined by the X-ray method. Crystal data [Rh(C2H6NSe)(C6H18N4)](ClO4)2, monoclinic, space group P21/c, a = 9.012(1), b = 14.438(1), c = 14.550(4) Å, β = 104.81(1)°, and Z = 4. The final R value was 0.026. The complex ion has a distorted octahedral structure with cis(tertiary amine nitrogen, Se) configuration. The RhN bond length for the amine nitrogen bonded trans to the selenium atom is longer by 0.039(6) Å than the average cis RhN distance for the two other primary amine nitrogen of the tren ligand, indicating rans influence of the selenium atom.

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