(Mesitylene)ruthenium π-complexes with benzo-15-crown-5 and dibenzo-18-crown-6

Perekalin, Dmitry S.; Babak, Maria V.; Novikov, Valentin V.; Corsini, Maddalena; Zanello, Piero; Kudinov, Alexander R.

doi:10.1016/j.jorganchem.2010.01.032

Cited by 3 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The crystal structure of 1· Na + C1O 4 – shows the anticipated coordination of the sodium cation within the crown 20. The bond lengths from Na(1) to O(6), O(7) and O(8) (2.468, 2.416 and 2.431 Å, respectively) are similar to those found21,22 for sodium adducts of the free benzo‐15‐crown‐5.…”

Section: Resultssupporting

confidence: 66%

Spectroscopic, Structural and DFT Study of the Responses of Carbonylmetal Crown Ether Complexes to Alkali Metal Cations

et al. 2011

View full text Add to dashboard Cite

Keywords:Crown compounds / Alkali metal ions / IR spectroscopy / Density functional calculations / Molecular sensors / Carbonyl ligands FTIR spectra of tricarbonyl(η 6 -benzo-15-crown-5)chromium(0) (1) in the presence of lithium, sodium and potassium perchlorate salts in methanol show different responses in the Cr-CO vibrational region of the spectrum. Data from the symmetric (ν sym ) and antisymmetric (ν asym ) Cr-CO vibrational stretching modes have been analysed by principal component analysis (PCA) to generate a factor score plot that provides a visual representation of these differential responses. X-ray crystallographic data for the sodium perchlorate complex 1·Na + and dimensions from DFT-derived structures of 1·Li + , 1·Na + and 1·K + indicate that binding M + in the crown causes electron density and structural changes in the [O(4)-C(9)-C(4)-O(8)]Cr-C(1)=O(1) sections of 1, which vary depending on the nature of the cation. This suggests a mode

show abstract

Section: Resultssupporting

confidence: 66%

Spectroscopic, Structural and DFT Study of the Responses of Carbonylmetal Crown Ether Complexes to Alkali Metal Cations

et al. 2011

View full text Add to dashboard Cite

show abstract

“…Introduction of functionalities into [M(η 6 -arene) 2 ] 0/ n + as a next step was described for Cr or Mo, − but studies with [M(η 6 -arene) 2 ] n + in bioorganometallic chemistry are generally rare. Only ruthenium and osmium are exceptions. ,− Whereas [M(η 6 -arene) 2 ] species for M = Cr, Mo are stable but air-sensitive, the group 7 homologous [M(η 6 -arene) 2 ] + compounds remain essentially unstudied in any respect. The [Mn(η 6 -arene) 2 ] + complex is highly unstable and was obtained via metal vapor synthesis and in situ oxidation in low yields .…”

Section: Introductionmentioning

confidence: 99%

Bis-Arene Complexes [Re(η⁶-arene)₂]⁺ as Highly Stable Bioorganometallic Scaffolds

et al. 2016

View full text Add to dashboard Cite

The synthesis of mono- and difunctionalized [Re(η-CHR)(η-CHR)] (n = 0, 1; R = COOH, Br) complexes starting from [Re(η-benzene)] is described. The lithiation of [Re(η-benzene)] with n-BuLi leads preferentially to the neutral, alkylated product [Re(η-CH)(η-CH-Bu)] but not to the expected deprotonation of the arene ring. Deprotonation/lithiation with LDA gave the mono- and the dilithiated products in situ. Their reactions with 1,1,2,2-tetra-bromoethane (TBE) or with CO, respectively, gave [Re(η-CHBr)(η-CH)], [Re(η-CHBr)], or [Re(η-CHCOOH)(η-CH)], [Re(η-CHCOOH)]. These functionalized derivatives of [Re(η-benzene)] represent novel precursors for the synthesis of bioconjugates to bioactive structures, comparable to [Co(Cp)] or [Fe(Cp)]. Different model compounds [Re(η-CHR)(η-CHR)] (n = 0, 1; R = -SCHPh, -NHPh, -CONHCHPh, -CH-COdpa) were synthesized via amide bond formation and nucleophilic aromatic substitution. These conjugates were fully characterized including X-ray structure analyses of most products. For all complexes, the H NMR arene proton signals are strongly upfield-shifted as compared to those of the noncoordinated arenes. The electrochemical analyses show an irreversible, probably substituent-centered oxidation, which contrasts the cyclic voltammetry of the underivatized complexes where oxidation is fully reversible. The stability of the core and the reactivity of the substituents make these bis-arene complexes useful precursors in medicinal inorganic chemistry, comparable to cobaltocenium or ferrocene.

show abstract

Synthesis, reactivity, electrochemical behaviour, and molecular structure of crown ether cyrhetrene complexes

Godoy

Gómez

Agurto

et al. 2015

Journal of Organometallic Chemistry

View full text Add to dashboard Cite

(Mesitylene)ruthenium π-complexes with benzo-15-crown-5 and dibenzo-18-crown-6

Cited by 3 publications

References 17 publications

Spectroscopic, Structural and DFT Study of the Responses of Carbonylmetal Crown Ether Complexes to Alkali Metal Cations

Spectroscopic, Structural and DFT Study of the Responses of Carbonylmetal Crown Ether Complexes to Alkali Metal Cations

Bis-Arene Complexes [Re(η⁶-arene)₂]⁺ as Highly Stable Bioorganometallic Scaffolds

Synthesis, reactivity, electrochemical behaviour, and molecular structure of crown ether cyrhetrene complexes

Contact Info

Product

Resources

About

(Mesitylene)ruthenium π-complexes with benzo-15-crown-5 and dibenzo-18-crown-6

Cited by 3 publications

References 17 publications

Spectroscopic, Structural and DFT Study of the Responses of Carbonylmetal Crown Ether Complexes to Alkali Metal Cations

Spectroscopic, Structural and DFT Study of the Responses of Carbonylmetal Crown Ether Complexes to Alkali Metal Cations

Bis-Arene Complexes [Re(η6-arene)2]+ as Highly Stable Bioorganometallic Scaffolds

Synthesis, reactivity, electrochemical behaviour, and molecular structure of crown ether cyrhetrene complexes

Contact Info

Product

Resources

About

Bis-Arene Complexes [Re(η⁶-arene)₂]⁺ as Highly Stable Bioorganometallic Scaffolds