PHOTOCHEMICAL-SYNTHESIS OF TETRACARBONYL-ETA-4-CYCLOOCTATETRAENE TUNGSTEN(O)

1983-01-01
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE

Suggestions

PHOTOINDUCED REACTIONS OF CR(CO)3-COORDINATED 1,3,5-CYCLOHEPTATRIENE - (6+2) CYCLOADDITION WITH AN ALKYNE AND CATALYTIC 1,6-HYDROGENATION
FISCHLER, I; GREVELS, FW; LEITICH, J; Özkar, Saim (Wiley, 1991-12-01)
Irradiation of Cr(CO)3(eta(6)-1,3,5-cycloheptatriene) (1) in the presence of bis(trimethylsilyl)ethyne results in [6 + 2] cycloaddition of the alkyne to the cycloheptatriene ligand, yielding Cr(CO)3{eta(4:2)-7,8-bis(trimethylsilyl)bicyclo[4.2.1]nona-2,4,7-triene} (2, 60% yield, PHI = 0.08), which upon oxidative decomposition with Ce(IV) releases the organic cycloadduct, 7,8-bis-(trimethylsilyl)bicyclo[4.2.1]-nona-2,4,7-triene (3). Photocatalytic hydrogenation of 1,3,5-cycloheptatriene in the presence of com...
Optical and Vibrational Properties of [Pt@Pb-12](2-), [Ni@Pb-12](2-), and [Ni@Pb-10](2-) Zintl Ion Clusters
Çetin, Asude; Esentürk, Okan; Nalbant Esentürk, Emren (Wiley, 2017-05-10)
The optical and vibrational properties of Pt- and Ni-centered Pb-Zintl-ion clusters have been investigated by UV/Vis and FTIR spectroscopy. Computational studies have been performed to better interpret the experimental data, due to a lack of any FTIR and UV/Vis spectroscopic studies on these clusters or similar ones in the literature. UV/Vis spectroscopic analyses show an asymmetric broad absorption band, with a maximum at 265 nm for both Pt- and Ni-centered Pb clusters. FTIR spectroscopic analysis demonstr...
Synthesis of Ti,Cr,Mn,Fe,Co,Ni,Cu,Zn sulfide by solid-gas reactions,investigation of structural and conducting properties
Genişel, Mustafa Fatih; Yılmaz, Ayşen; Department of Chemistry (2005)
In this study some of the first row transition metal oxides were transformed to metal sulfides by new solid gas reaction system. Transition metal sulfides have wide application area in industry and technology. Several techniques are known for the production of metal sulfides. Such as reactions between metal or metal oxide with H2S, precipitation in several liquid medium, reaction between metal and sulfur in closed vessel, chemical vapor deposition (CVD) technique. These techniques will have some disadvantag...
Rhodium(0) nanoparticles supported on hydroxyapatite: preparation, characterization and catalytic use in hydrogen generation from hydrolysis of hydrazine borane and ammonia borane
Çelik, Derya; Özkar, Saim; Department of Chemistry (2012)
This dissertation presents the preparation and characterization of rhodium(0) nanoparticles supported on hydroxyapatite, and investigation of their catalytic activity in hydrogen generation from the hydrolysis of hydrazine-borane and ammonia-borane. Rh+3 ions were impregnated on hydroxyapatite by ion-exchange; then rhodium(0) nanoparticles supported on hydroxyapatite were formed in-situ during the hydrolysis of hydrazine-borane at room temperature. The rhodium(0) nanoparticles supported on hydroxyapatite we...
Synthesis and characterization of Pentacarbonylacryloylferrocenetungsten(0) complex
Boğa, Dilek Ayşe; Özkar, Saim; Department of Chemistry (2006)
Pentacarbonylacryloylferrocenetungsten(0) complex was synthesized photochemically from hexacarbonyltungsten(0) and acryloyferrocene (acfc). UV irradiation of W(CO)6 in the presence of acryloylferrocene at 10 oC for 4 hours in n-hexane solution generates the W(CO)5(?2-acfc) complex as the sole monosubstitution product of the photolysis, as monitored by FT-IR spectroscopy. The product complex could be isolated from the reaction solution and characterized by IR, Raman, 1H-NMR, 13C-NMR spectroscopies, mass spec...
Citation Formats
S. Özkar, “PHOTOCHEMICAL-SYNTHESIS OF TETRACARBONYL-ETA-4-CYCLOOCTATETRAENE TUNGSTEN(O),” ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, pp. 215–217, 1983, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/69985.