ChemInform Abstract: TRANSITION METAL CARBYNE COMPLEXES, XXXVII. REACTION OF TRANS-BROMOTETRACARBONYL(PHENYLCARBYNE)TUNGSTEN WITH BIS(DIPHENYLARSINO)METHANE

1978 ◽  
Vol 9 (43) ◽  
Author(s):  
E. O. FISCHER ◽  
A. RUHS
Keyword(s):  
Transition Metal ◽  
Carbyne Complexes

Übergangsmetall-Carbin-Komplexe, LXXIY. Synthese thermisch stabiler neutraler Carbin-Carbonyl-Komplexe von Chrom, Molybdän und Wolfram mit den zweizähnigen Liganden 2.2′ -Bipyridyl und 1.10-Phenanthrolin/ Transition Metal Carbyne Complexes, LXXIV. Synthesis of Thermostable Neutral Carbyne Carbonyl Complexes of Chromium, Molybdenum, and Tungsten with the Bidentate Ligands 2,2′-Bipyridyl and 1,10-Phenanthroline

1983 ◽  
Vol 38 (5) ◽  
pp. 587-591 ◽  
Author(s):  
Alexander Filippou ◽  
Ernst Otto Fischer
Keyword(s):  
Transition Metal ◽  
General Formula ◽  
Carbonyl Groups ◽  
Carbonyl Complexes ◽  
Bidentate Ligands ◽  
Carbyne Complexes ◽  
And Tungsten

AbstractReaction of trans-bromotetracarbonyl(phenylcarbyne)-complexes of chromium, molybdenum and tungsten and trans-bromotetracarbonyl(methylcarbyne) complexes of chromium and tungsten with the bidentate ligands 2,2′-bipyridyl and 1,10-phenanthroline results in the replacement of two carbonyl groups leading to very thermostable carbyne complexes with the general formula Br(CO)2LMCR (L: 2,2′-bipy, ophen; M: Cr, Mo, W; R : CH3, C6H5).

Notizen: Übergangsmetall-Carbin-Komplexe, XXIV1 Trans-Bromotetracarbonyl(2-thienyl) carbinchrom und -wolfram / Transition Metal Carbyne Complexes, XXIV1 Trans-Bromotetracarbonyl (2-thienyl)carbyne Chromium and Tungsten

1977 ◽  
Vol 32 (1) ◽  
pp. 105-107 ◽  
Author(s):  
Ernst Otto Fischer ◽  
Tassilo Selmayr
Keyword(s):  
Transition Metal ◽  
Carbyne Complexes ◽  
And Tungsten

Pentacarbonyl[acetoxy(2-thienyl)carbene]-chromium(0) and -tungsten(0) react with BBr3 to give trans-bromotetracarbonyl(2-thienyl)carbyne-chromium and -tungsten.Beim Versuch an Pentacarbonyl(hydroxyphenyloarben)chrom(0)2 mit BBr3 die Hydroxygruppe

Übergangsmetall-Carbin-Komplexe, LXXII [1]. Reaktionen von trans-Bromotetracarbonyl(phenylcarbin)chrom mit Lithiumthiokresolat und Lithiumselenophenolat / Transition Metal Carbyne Complexes, LXXII [1]. Reactions of trans-Bromotetracarbonyl(phenylcarbyne)chromium with Lithium Thiocresolate and Lithium Phenylselenolate

1982 ◽  
Vol 37 (10) ◽  
pp. 1274-1278 ◽  
Author(s):  
Werner Roll ◽  
Ernst Otto Fischer ◽  
Dietmar Neugebauer ◽  
Ulrich Schubert
Keyword(s):  
Hydrochloric Acid ◽  
Transition Metal ◽  
Structure Determination ◽  
Binuclear Complex ◽  
Spectroscopic Data ◽  
Reaction Conditions ◽  
X Ray ◽  
Carbyne Complexes ◽  
Ether Complex

The reaction of trans-bromotetracarbonyl(phenylcarbyne)chromium (1) with lithium phenylselenolate and subsequent protonation with aqueous hydrochloric acid leads to (CO)5Cr[Se2(C6H5)2] (3) and (CO)4Cr(μ-SeC6H5)2Cr(CO)4 (4). From 1 and lithium 4-methylphenylthiolate (CO)5CrC(C6H5)SC6H4CH3 (5) and (CO)5CrS(C2H5)(4-CH3C6H4) (6) are obtained, if triethyloxonium tetrafluoroborate is used instead of hydrochloric acid. The analoguous reaction of 1 with lithium phenylselenolate yields the seleno ether complex (7). Reaction conditions, properties, spectroscopic data and the results of an X-ray structure determination of the binuclear complex (4) are reported.

Übergangsmetall-Carben-Komplexe, CXXVI [1]. Darstellung und Struktur symmetrischer Hydroxycarben-Anhydrid-Komplexe des Mangans und Rheniums / Transition Metal Carbene Complexes, CXXVI [1]. Preparation and Structure of Symmetrica! Hydroxycarbene Anhydride Complexes of Manganese and Rhenium

1982 ◽  
Vol 37 (10) ◽  
pp. 1284-1288 ◽  
Author(s):  
Ernst Otto Fischer ◽  
Jiabi Chen ◽  
Ulrich Schubert
Keyword(s):  
Transition Metal ◽  
Structure Analysis ◽  
Metal Carbonyl ◽  
Carbene Complexes ◽  
X Ray ◽  
Carbyne Complexes ◽  
Hydrolysis Of ◽  
Controlled Hydrolysis ◽  
Symmetrical Anhydrides

Abstract Symmetrical anhydrides of hydroxycarbene complexes of manganese and rhenium, [π-C5H5(CO)2MC(R)]2O, (M = Mn, Re) are prepared by reaction of cationic carbyne complexes [π-C5H5(CO)2MCR]BX4 with the corresponding metal carbonyl acylates Li[π-C5H5(CO)2MC(O)R]. [π-C5H5(CO)2MnC(C6H5)]2O is also obtained by controlled hydrolysis of π-C5H5(CO)2MnCX(Br)Ce6H5. The new complexes are characterized spectroscopically and by an X-ray structure analysis of [π-C5H5(CO)2MnC(C6H5)2O.

Übergangsmetall-Carbin-Komplexe, L Darstellung und nukleophile Substitution von Tetracarbonyl(organylcarbin)tetrafluoroborato-metall-Komplexen /Transition Metal Carbyne Complexes, L Preparation and Nucleophilic Substitution of Tetracarbonyl(organylcarbyne)tetrafluoroborato Metal Complexes

1979 ◽  
Vol 34 (9) ◽  
pp. 1183-1185 ◽  
Author(s):  
Ernst Otto Fischer ◽  
Franz J. Gammel
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Nucleophilic Substitution ◽  
Boron Trifluoride ◽  
Chromium Complexes ◽  
Nucleophilic Reagents ◽  
Carbyne Complexes

Abstract Pentacarbonyl[methoxy(organyl)carbene]chromium complexes react in boron trifluoride dimethyletherate in the presence of BF3 to form tetracarbonyl(organylcarbyne)-tetrafluoroborato complexes of chromium. In the analogous tungsten complex BF4(CO)4WCC6H5 the BF4--ligand is displaced by nucleophilic reagents. With As(C6H5)3 and t-C4H9NC the cationic derivatives [As(C6H5)3(CO)4WCC6H5][BF4]as well as [t-C4H9NC(CO)4WCC6H5][BF4]are obtained.

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