[MU-BIS(DIALKYLPHOSPHINO)ALKANE]-BIS[PENTACARBONYLMETAL(0)] COMPLEXES OF THE GROUP-6B ELEMENTS - SYNTHESIS AND SPECTROSCOPIC STUDY

Date

1993-01-01

Author

OZER, Z
Özkar, Saim
PAMUK, HO

Metadata

Show full item record

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

Item Usage Stats

164
views

0
downloads

[mu-Bis(dialkylphosphino)alkane]-bis[pentacarbonylmetal(0)] complexes (CO)5MR2P(CH2)nPR2M(CO)5, (M: Cr, Mo, W; n: 1, 2, 3; R: CH3, C2H5, C6H5) were synthesized from the reaction of M(CO)5(CH3CN) with the appropriate ligand and characterized by means of IR and NMR (H-1, C-13, P-31) spectroscopy. Spectral data indicate that the complexes contain two identical M(CO)5 moieties linked to each other by the R2P(CH2)nPR2 ligand. Each metal atom has a pseudo-octahedral arrangement of the five CO ligands and one phosphorus atom.

Subject Keywords

General Chemistry

URI

https://hdl.handle.net/11511/48956

Journal

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES

DOI

https://doi.org/10.1515/znb-1993-0110

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-...
Determination of phytate in the Turkish diet by phosphorus-31 Fourier transform nuclear magnetic resonance spectroscopy Ersoz, Arzu; Akgun, Hulya; Aras, Namik K. (American Chemical Society (ACS), 1990-3) ThephytatecontentofdailydietsamplesfromuppermiddleclassfamiliesinTurkeywasdeter-minedbyphosphorus-31Fouriertransformnuclearmagneticresonancespectroscopy(31PFTNMR).Samples,collectedbyaduplicate-portiontechnique,werehomogenizedandfreeze-dried.Dietsam-pleswerestirredfor0.5hinaqueous3%(w/v)trichloroaceticacid,EDTAwasadded,andthepHwasadjustedto4.5±0.5beforeanalysis.Theaveragephytatecontentof10dietsampleswasfoundtobe1.55±0.70g/kg
Synthesis, characterization, and electrochemistry of tetracarbonyl(6-ferrocenyl-2,2 '-bipyridine)tungsten(0) Edinc, Pelin; Oenal, Ahmet M.; Özkar, Saim (Elsevier BV, 2007-04-15) 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 spectroscop...
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...
Ruthenium(III) acetylacetonate: A homogeneous catalyst in the hydrolysis of sodium borohydride Keceli, Ezgi; Özkar, Saim (Elsevier BV, 2008-05-01) Ruthenium(ill) acetylacetonate was employed for the first time as homogeneous catalyst in the hydrolysis of sodium borohydride. Ruthenium(III) acetylacetonate was not reduced by sodium borohydride under the experimental conditions and remains unchanged after the catalysis. Poisoning experiments with mercury and trimethylphosphite provide compelling evidence for the fact that ruthenium(III) acetylacetonate is indeed a homogenous catalyst in the hydrolysis of sodium borohydride. Kinetics of the ruthenium(III)...

Citation Formats

Z. OZER, S. Özkar, and H. PAMUK, “[MU-BIS(DIALKYLPHOSPHINO)ALKANE]-BIS[PENTACARBONYLMETAL(0)] COMPLEXES OF THE GROUP-6B ELEMENTS - SYNTHESIS AND SPECTROSCOPIC STUDY,” ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, pp. 37–43, 1993, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48956.