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Title: Reactions of ruthenium trichloride with imidazole and histamine: Crystal structure of the complex (C{sub 5}N{sub 3}H{sub 11}){sub 2}[Ru{sub 2}Ocl{sub 10}]

Abstract

Cation-anionic ruthenium(III) complexes with imidazole and histamine of the composition (C{sub 3}H{sub 5}N{sub 2}){sub 3}[RuCl{sub 6}] (I) and (C{sub 5}N{sub 3}H{sub 11}){sub 2}Cl[RuCl{sub 6}]{center_dot}H{sub 2}O (II) and the ruthenium(IV) complex with histamine (C{sub 5}N{sub 3}H{sub 11}){sub 2}[Ru{sub 2}OCl{sub 10}] (III) were synthesized. In solutions of complex II in 6 M HCl, ruthenium(III) oxidizes to ruthenium(IV) in the presence of air at room temperature, thus forming a ruthenium(IV) oxo complex. Structures of complexes I-III are determined by the IR spectroscopic method. An X-ray structural analysis of complex III was carried out. The crystals are monoclinic with the following lattice parameters: a = 10.182(1) {angstrom}, b = 10.747(2) {angstrom}, c = 12.396(1) {angstrom}, {beta} = 112.97(1){degrees}, space group P2{sub 1}/c, Z = 2, V = 1248.9(3) {angstrom}{sup 3}, d(calcd.) = 2.57 g/cm{sup 3}; R = 0.034. Ruthenium atoms have an octahedral environment constituted of five chlorine atoms and a bridging oxygen atom situated in the center of inversion. The binuclear complex anion contains a linear Ru-O-Ru fragment with the Ru{center_dot}{center_dot}{center_dot}Ru distance of 3.5749(3) {angstrom}. The Ru-O bond equals 1.7881(4) {angstrom}; Ru-Cl bonds range from 2.352(1) to 2.383(1) {angstrom}. A doubly protonated histamine cation adopts the syn-syn conformation, which is unusual for suchmore » complexes. Chlorine atoms of the complex anion and histamine molecules are involved in a system of hydrogen bonds (ordinary and bifurcated). Both NH groups of the imidazole ring and an NH{sub 3} group of the histamine side change are proton donors.« less

Authors:
; ; ; ;  [1]
  1. Kurnakov Institute of General and Inorganic Chemistry, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
35659
Resource Type:
Journal Article
Journal Name:
Russian Journal of Coordination Chemistry
Additional Journal Information:
Journal Volume: 20; Journal Issue: 4; Other Information: PBD: Apr 1994; TN: Translated from Koordinatsionnaya Khimiya; 20: No. 4, 294-299(1994)
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; RUTHENIUM COMPLEXES; CRYSTAL STRUCTURE; IMIDAZOLES; CHEMICAL REACTIONS; HISTAMINE; RUTHENIUM CHLORIDES; ABSORPTION SPECTROSCOPY; MONOCLINIC LATTICES; MOLECULAR STRUCTURE

Citation Formats

Efimenko, I A, Balakaeva, T A, Kurbakova, A P, Gorbunova, Yu E, and Mikhailov, Yu N. Reactions of ruthenium trichloride with imidazole and histamine: Crystal structure of the complex (C{sub 5}N{sub 3}H{sub 11}){sub 2}[Ru{sub 2}Ocl{sub 10}]. United States: N. p., 1994. Web.
Efimenko, I A, Balakaeva, T A, Kurbakova, A P, Gorbunova, Yu E, & Mikhailov, Yu N. Reactions of ruthenium trichloride with imidazole and histamine: Crystal structure of the complex (C{sub 5}N{sub 3}H{sub 11}){sub 2}[Ru{sub 2}Ocl{sub 10}]. United States.
Efimenko, I A, Balakaeva, T A, Kurbakova, A P, Gorbunova, Yu E, and Mikhailov, Yu N. Fri . "Reactions of ruthenium trichloride with imidazole and histamine: Crystal structure of the complex (C{sub 5}N{sub 3}H{sub 11}){sub 2}[Ru{sub 2}Ocl{sub 10}]". United States.
@article{osti_35659,
title = {Reactions of ruthenium trichloride with imidazole and histamine: Crystal structure of the complex (C{sub 5}N{sub 3}H{sub 11}){sub 2}[Ru{sub 2}Ocl{sub 10}]},
author = {Efimenko, I A and Balakaeva, T A and Kurbakova, A P and Gorbunova, Yu E and Mikhailov, Yu N},
abstractNote = {Cation-anionic ruthenium(III) complexes with imidazole and histamine of the composition (C{sub 3}H{sub 5}N{sub 2}){sub 3}[RuCl{sub 6}] (I) and (C{sub 5}N{sub 3}H{sub 11}){sub 2}Cl[RuCl{sub 6}]{center_dot}H{sub 2}O (II) and the ruthenium(IV) complex with histamine (C{sub 5}N{sub 3}H{sub 11}){sub 2}[Ru{sub 2}OCl{sub 10}] (III) were synthesized. In solutions of complex II in 6 M HCl, ruthenium(III) oxidizes to ruthenium(IV) in the presence of air at room temperature, thus forming a ruthenium(IV) oxo complex. Structures of complexes I-III are determined by the IR spectroscopic method. An X-ray structural analysis of complex III was carried out. The crystals are monoclinic with the following lattice parameters: a = 10.182(1) {angstrom}, b = 10.747(2) {angstrom}, c = 12.396(1) {angstrom}, {beta} = 112.97(1){degrees}, space group P2{sub 1}/c, Z = 2, V = 1248.9(3) {angstrom}{sup 3}, d(calcd.) = 2.57 g/cm{sup 3}; R = 0.034. Ruthenium atoms have an octahedral environment constituted of five chlorine atoms and a bridging oxygen atom situated in the center of inversion. The binuclear complex anion contains a linear Ru-O-Ru fragment with the Ru{center_dot}{center_dot}{center_dot}Ru distance of 3.5749(3) {angstrom}. The Ru-O bond equals 1.7881(4) {angstrom}; Ru-Cl bonds range from 2.352(1) to 2.383(1) {angstrom}. A doubly protonated histamine cation adopts the syn-syn conformation, which is unusual for such complexes. Chlorine atoms of the complex anion and histamine molecules are involved in a system of hydrogen bonds (ordinary and bifurcated). Both NH groups of the imidazole ring and an NH{sub 3} group of the histamine side change are proton donors.},
doi = {},
journal = {Russian Journal of Coordination Chemistry},
number = 4,
volume = 20,
place = {United States},
year = {1994},
month = {4}
}