Synthesis and Spectroscopic Studies of Pentacarbonylfumaronitrile-chromium(0),-molybdenum(0), and -tungsten(0)

Download

index.pdf

Date

1994-08-01

Author

Mour, Ïzzet A.
Özkar, Saim
Kreiter, Cornelius G.

Metadata

Show full item record

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

Item Usage Stats

109
views

37
downloads

Photolysis of hexacarbonyl-chromium(0), -molybdenum(0), and -tungsten(0) in presence of fumaronitrile yields at room tem perature pentacarbonyl-fumaronitrile-chromium(0)(1), -molybdenum(0) (2), and -tungsten(O) (3). The complexes were purified by crystallization and characterized by IR and 13C-NMR spectroscopy. The fumaronitrile ligand is bonded to the M(CO)5 moiety by one nitrile nitrogen atom rather than by the carbon-carbon double bond. In toluene 2 dissociates into fumaronitrile and pentacarbonyl-molybdenum(0), which is stabilized by the solvent. Fumaronitrile and solvated pentacarbonyl-molybdenum(0) exist in solution together with 2 in an equilibrium which lies in favour of the former species. © 1994, Walter de Gruyter. All rights reserved.

Subject Keywords

Carbonyl, Chromium, Fumaronitrile Complexes, Molybdenum, Tungsten

URI

https://hdl.handle.net/11511/102755

Journal

Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences

DOI

https://doi.org/10.1515/znb-1994-0808

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

SYNTHESIS AND SPECTROSCOPIC STUDIES OF PENTACARBONYLFUMARONITRILE-CHROMIUM(0), PENTACARBONYLFUMARONITRILE-MOLYBDENUM(0), AND PENTACARBONYLFUMARONITRILE-TUNGSTEN(0) MOUR, IA; Özkar, Saim; KREITER, CG (1994-08-01) Photolysis of hexacarbonyl-chromium(0), -molybdenum(0), and -tungsten(0) in presence of fumaronitrile yields at room temperature pentacarbonyl-fumaronitrile-chromium(0) (1): molybdenum(0) (2), and -tungsten(0) (3). The complexes were purified by crystallization and characterized by IR and C-13-NMR spectroscopy. The fumaronitrile ligand is bonded to the M(CO)(5) moiety by one nitrile nitrogen atom rather than by the carbon-carbon double bond. In toluene 2 dissociates into fumaronitrile and pentacarbonyl-moly...
Synthesis and Spectroscopic Study of Pentacarbonyl(η2-tetracyanoethylene) Metal(0) Complexes of the Group 6B Elements Mour, Ïzzet A.; Özkar, Saim (1994-05-01) Pentacarbonyl (n2-tetracyanoethylene) metal(O) com plexes o f chrom ium , m olybdenum and tung sten have b een synthesized by the photochem ical reaction o f hexacarbonyl metal(O) with te tra cyanoethylene in tolu en e at room tem perature. TTie com plexes w ere purified by chrom atography and recrystallization, and characterized by UV- visible, IR and 13C N M R spectroscopy. T etra cyanoethylene is sym m etrically bonded to the M (C O )5 unit through its c a rb o n -c a rb o n double bond as an ^ 2-ligand....
Synthesis of benzimidazole containing donor acceptor electrochromic polymers Akpınar, Hava Zekiye; Toppare, Levent Kamil; Department of Chemistry (2011) Donor-acceptor-donor (DAD) type benzimidazole (BIm) and 3,4-ethylenedioxythiophene (EDOT) bearing monomers (4-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)-7-(2,3 dihydrothieno[3,4b][1,4] dioxin-7-yl)-2-benzyl-1H-benzo[d]imidazole (M1), 2,4-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-7-(2,3-dihydrothieno[3,4-b][1,4]dioxin-7-yl)-1H-benzo[d]imidazole (M2) and 4-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-7-(2,3-dihydrothieno[3,4-b][1,4]dioxin-7-yl)-2-ferrocenyl-1H-benzo[d]imidazole (M3)) were synthesized and el...
Synthesis of new donor-acceptor polymers containing thiadiazoloquinoxaline and pyrazinoquinoxaline moieties: low-band gap, high optical contrast, and almost black colored materials Unver, Elif Kose; Tarkuc, Simge; BARAN, Derya; Tanyeli, Cihangir; Toppare, Levent Kamil (Elsevier BV, 2011-05-25) Two low band gap conjugated polymers, poly[4,9-bis(4-hexylthien-2-yl)-6,7-di(thien-2-yl)-[1,2,5]thiadiazolo[3,4-g]quinoxaline] (PHTTQ) and poly[5,10-bis(4-hexylthien-2-yl)-2,3,7,8-tetra(thien-2-yl)pyrazino[2,3-g]quinoxaline] (PHTPQ), consisting of alternating electron-rich 3-hexylthiophene and electron-deficient 6,7-di(thien-2-yl)-[1,2,5]thiadiazolo[3,4-g]quinoxaline (TTQ) and 2,3,7,8-tetra(thien-2-yl)-2,3-dihydropyrazino[2,3-g]quinoxaline (TPQ) units were synthesized electrochemically. The structures of th...
Synthesis and Characterization of Conducting Copolymers of Quinoxaline Derivatives Turac, Ersen; Sahmetlioglu, Ertugrul; Toppare, Levent Kamil; Yuruk, Huseyin (Wiley, 2011-05-05) Electrochemical copolymerizations of 2,3-di(2-thienyl)quinoxaline (M1), 6-methyl-2,3-di(2-thienyl)quinoxaline (M2), and 2,3-di(2-thienyl)quinoxaline-6-yl)(phenyl)methanone (M3) with 3,4-ethylenedioxy thiophene (EDOT) were carried out in CH3CN/TBABF(4) (0.1M) solvent-electrolyte couple via potentiodynamic electrolysis. The obtained copolymers were characterized by cyclic voltammetry (CV), Fourier transform-infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and thermogravimetry analyses (TGA). ...

Citation Formats

Ï. A. Mour, S. Özkar, and C. G. Kreiter, “Synthesis and Spectroscopic Studies of Pentacarbonylfumaronitrile-chromium(0),-molybdenum(0), and -tungsten(0),” Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences, vol. 49, no. 8, pp. 1059–1062, 1994, Accessed: 00, 2023. [Online]. Available: https://hdl.handle.net/11511/102755.