Synthesis, characterization, and electrochemistry of tetracarbonyl(6-ferrocenyl-2,2 '-bipyridine)tungsten(0)

Date

2007-04-15

Author

Edinc, Pelin
Oenal, Ahmet M.
Özkar, Saim

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

200
views

0
downloads

6-Ferrocenyl-2,2'-bipyridine (fcbpy) was prepared by the reaction of lithiated ferrocene with bipyridine and employed as a bidentate ligand for the formation of tetracarbonyl(6-ferrocenyl-2,2'-bipyridine)tungsten(0). The labile complex pentacarbonyl[eta(2)-bis(trimethylsilyl)ethyne]tungsten(0) reacts with fcbpy in CH2Cl2 to yield the disubstitution product, W(CO)(4)(fcbpy), which was isolated as analytically pure substance and characterized by elemental analysis, IR, UV-Vis, MS, H-1 and C-13 NMR spectroscopies. Electrochemistry of the fcbpy molecule and its Complex W(CO)(4)(fcbpy) was studied by cyclic voltammetry and controlled potential electrolysis combined with UV-Vis spectrometer. In the cyclic voltammogram of both the fcbyp molecule and its complex, an irreversible reduction and a reversible oxidation are assigned to the bipyridine and ferrocene moieties, respectively. The W(CO)(4)(fcbpy) complex exhibits additionally two irreversible oxidations due to the tungsten centered electron transfer reactions.

Subject Keywords

Physical and Theoretical Chemistry, Inorganic Chemistry, Organic Chemistry, Materials Chemistry, Biochemistry

URI

https://hdl.handle.net/11511/62760

Journal

JOURNAL OF ORGANOMETALLIC CHEMISTRY

DOI

https://doi.org/10.1016/j.jorganchem.2007.01.006

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Insertion of Fischer Carbene Complexes into the Carbon-Carbon Bond of 1,2-Diphenylcyclopropenone: Formation of Cyclobutenones and o- and p-Methoxyphenol Derivatives Zora, Metin (American Chemical Society (ACS), 1994-08-01) Thereactionbetween1,2-diphenylcyclopro-penoneandFischercarbenecomplexeshasbeeninves-tigated.Thereactionproducedamixtureofdipheny-lacetyleneandcyclobutenones.Whena,ß-unsaturatedcarbenecomplexeswereemployed,benzannulationprod-uctsanddiphenylacetylenewereproduced.Amecha-nisminvolvingmetallacyclobutenoneformation,followedbyeithercarbeneinsertionandreductiveeliminationorfragmentationhasbeenproposed.Recently,wereportedthatcarbon—carbonbondin-sertionisthemajorreactionpathwaywhenFischercarbenecomplexesreactwith1,2-...
Selective recognition of anionic cell membranes using targeted liposomes coated with zinc(II)-bis(dipicolylamine) affinity units Türkyılmaz, Serhan; Palumbo, Rachael; Smith, Bradley D. (Royal Society of Chemistry (RSC), 2014-08-14) Zinc(II)-bis(dipicolylamine) (Zn(2)BDPA) coated liposomes are shown to have high recognition selectivity towards vesicle and cell membranes with anionic surfaces. Robust synthetic methods were developed to produce Zn(2)BDPA-PEG-lipid conjugates with varying PEG linker chain length. One conjugate (Zn(2)BDPA-PEG(2000)-DSPE) was used in liposome formulations doped with the Lipophilic near-infrared fluorophore DiR. Fluorescence cell microscopy studies demonstrated that the multivalent Liposomes selectively and ...
Dipole moments of some styrene copolymers Küçükyavuz, Zühal; Baysal, Bahattin (American Chemical Society (ACS), 1988-7) Dipolemomentsofpoly(styrene-co-p-chlorostyrene),poly(styrene-co-p-methoxystyrene),poly(styrene-co-4-vinylpyridine),andpoly(styrene-co-N-vinylcarbazole)copolymersweredeterminedintoluenesolutionsatdifferenttemperatures.Thesamplesweresynthesizedbyusingfree-radicalinitiators.Theeffectsofthenatureofthepolargroup,composition,andtemperatureonthedipolemomentratiowereinvestigated.Themean-squaredipolemomentperstructuralunitshowsapositivedeviationfromlinearity,inagreementwithcalculationsbyMarkbasedonrotationalisomeric...
SYNTHESIS AND STEREOCHEMISTRY OF PENTACARBONYL(PHOSPHOLE)METAL(0) AND TETRACARBONYLBIS(PHOSPHOLE)METAL(0) COMPLEXES OF 6B ELEMENTS OZER, Z; Özkar, Saim (Informa UK Limited, 1992-01-01) Pentacarbonylphospholemetal(0) and cis-tetracarbonylbis(phosphole)metal(0) complexes were synthesized from the thermal reaction of M(CO)5(THF) and M(CO)4(COD) (M: Cr, Mo, W) with corresponding phosphole (1-phenyl-3,4-dimethylphosphole, 1-phenyl-3-methylphosphole, and 1-phenylphosphole). These complexes were isolated as orange crystals by column chromatography on silicagel at 253 K and crystallization from n-hexane at 223 K and characterized by means of IR and NMR (H-1, C-13, and P-31). Spectroscopic data sh...
CONDUCTIVE PROPERTIES OF POLY(4-VINYLPYRIDINE) POLY(DIMETHYLSILOXANE) BLOCK-COPOLYMERS DOPED WITH TETRACYANOQUINODIMETHANE NUGAY, N; KUCUKYAVUZ, Z; KUCUKYAVUZ, S (Elsevier BV, 1993-01-01) Poly(4-vinylpyridine)-poly(dimethylsiloxane) (P4VP-PDMS) block copolymers with various compositions were prepared by anionic polymerization. The 4VP block was quaternized with methyl iodide and reacted with 7,7',8,8'-tetracyanoquinodimethane (TCNQ), which is in both anion radical (TCNQ-.) and neutral form (TCNQ0). The products were then characterized by H-1 nuclear magnetic resonance and Fourier-transform infra-red spectroscopy, scanning electron microscopy and differential scanning calorimetry techniques. ...

Citation Formats

P. Edinc, A. M. Oenal, and S. Özkar, “Synthesis, characterization, and electrochemistry of tetracarbonyl(6-ferrocenyl-2,2 ’-bipyridine)tungsten(0),” JOURNAL OF ORGANOMETALLIC CHEMISTRY, pp. 1983–1989, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62760.