Výsledky vyhledávání - "Rüdiger Stumpf"

The first carbene-C,N chelate tetracarbonyl dihalogeno and carbene-C,O chelate tetracarbonyl benzochinone tungsten complexes

Autor: Bernhard Weibert, Helmut Fischer, Rüdiger Stumpf, Nicolai Burzlaff

Publikováno v: Journal of Organometallic Chemistry. 651:66-71

The carbene-C,N chelate tetracarbonyl tungsten complex [(CO) 4 / W C(Ph)NHC 5 H 4 N -o](4), obtained from [(CO) 5 WC(Ph)OMe] (3) and o-aminopyridine, reacts with iodine by oxidative decarbonylation to give a single isomer of the carbene-C,Nchelate tr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22673a4d4f68e422d4418ac4bca5d0ea
https://doi.org/10.1016/s0022-328x(02)01255-x

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Formation and Structure of Heptacoordinate Dihalogeno Carbene-C,O Chelate Complexes and Dihalogeno Carbene-C,O Chelate Phosphine Complexes of Molybdenum(II) and Tungsten(II): A New Class of Fischer Type Carbene Complexes

Autor: Rüdiger Stumpf, Helmut Fischer, Monika Jaeger

Publikováno v: Organometallics. 20:4040-4048

The carbene-C,O chelate carbonyl tungsten(0) complex (1) reacts with phosphines by opening of the chelate ring to form [(CO)4(PR3)WC(OMe)C6H4OMe-o] (R = Me (5), nBu (6), Ph (7), Cy (8)). Treatment of 5 and 6 with SnX4 affords by oxidative decarbonyla

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a3b11ca13b83c0d2dda467ba8040513e
https://doi.org/10.1021/om010429e

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Lanthanide Complexes with Carbacylamidophosphates: The First Registration of Chelate Coordination of the Neutral Ligand Form in the Structure of Di-(N,Nf-tetramethyl-NM -benzoylphosphoryl- triamide)cerium(III) Nitrate

Autor: Katerina E. Gubina, Vladimir A. Ovchynnikov, Helmut Fischer, Rüdiger Stumpf, Viktor V. Skopenko, Vladimir M. Amirkhanov

Publikováno v: Zeitschrift für Naturforschung B. 55:576-582

The coordination compounds of the general formula Ln(HL)2(NO3)3, (where Ln = La - Eu (without Pm), HL = C6H5C(O)NHP(O)[N(CH3)2]2, N,Nʹ-tetramethyl-Nʺ-benzovlphosphoryl-triamide) have been synthesized and characterized by means of IR, UV-VIS, 1H, 31

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a99ae31e8283c2d12d0dda91e680b6b5
https://doi.org/10.1515/znb-2000-0704

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Titanium and Zirconium Complexes That Contain the Tridentate Diamido Ligands [(i-PrN-o-C6H4)2O]2- ([i-PrNON]2-) and [(C6H11N-o-C6H4)2O]2- ([CyNON]2-)

Autor: Rüdiger Stumpf, Robert Baumann, Lan-Chang Liang, Richard R. Schrock, William M. Davis

Publikováno v: Journal of the American Chemical Society. 121:7822-7836

A variety of five- and six-coordinate titanium and zirconium dialkyl complexes that contain the [(i-PrN-o-C6H4)2O]2- ([i-PrNON]2-) ligand have been prepared, among them [i-PrNON]Ti(CH2CHMe2)2, [i-PrNON]Ti(CH2CMe3)2, [i-PrNON]Zr(CH2CH3)2, and [i-PrNON

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https://doi.org/10.1021/ja983549v

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Synthesis of Titanium, Zirconium, and Hafnium Complexes that Contain Diamido Donor Ligands of the Type [(t-BuN-o-C6H4)2O]2- and an Evaluation of Activated Versions for the Polymerization of 1-Hexene

Autor: Jonathan T. Goodman, William M. Davis, Rüdiger Stumpf, Robert Baumann, Richard R. Schrock, Steven M. Reid

Publikováno v: Organometallics. 18:3649-3670

Titanium, zirconium, and hafnium dialkyl complexes that contain the [(t-Bu-d6−N-o-C6H4)2O]2- ([t-BuNON]2-) ligand have been prepared. Only [t-BuNON]TiMe2 could be isolated, but [t-BuNON]ZrR2 and [t-BuNON]HfR2 complexes could be isolated in which (f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3f0052ff9fc4e1efd7ca3e2b7078063
https://doi.org/10.1021/om9905005

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Synthesis of Zirconium Complexes Containing the Tridentate Diamido Ligands [(t-Bu-d6-N-o-C6H4)2S]2- and [(i-PrN-o-C6H4)2S]2

Autor: David D. Graf, Rüdiger Stumpf, Richard R. Schrock, William M. Davis

Publikováno v: Organometallics. 18:843-852

The thioethers (t-Bu-d{sub 6}-NH-o-C{sub 6}H{sub 4}){sub 2}S (H{sub 2}[t-BuNSN]) and (i-PrNH-o-C{sub 6}H{sub 4}){sub 2}S (H{sub 2}[i-PrNSN]) have been prepared in three steps in good yield. Zirconium complexes that contain the [t-BuNSN]{sup 2{minus}}

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https://doi.org/10.1021/om980934k

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1,3‐Heterobinuclear Cyclobutenylidene Complexes with an Exocyclic CC bond — Synthesis, Structure, and Spectroscopic Properties

Autor: Rüdiger Stumpf, Gerhard Roth, Helmut Fischer, Frédéric R. Leroux

Publikováno v: Chemische Berichte. 129:1475-1482

Pentacarbonyl(allenylidene)chromium and -tungsten, [(CO)5MCCCR2] (M=Cr, R=C6H4CH3-p(1a), C6H4OCH3 (1b); M=W, R=C6H4CH3-p (1c), react with the alkynyl complexes [Cp(CO)2FeCCR′] (R′ = nBu (2), Ph (4)), [Cp*(CO)2FeCCnBu] (6), [Cp(CO){P(OMe)3}-FeCCnB

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::93085216f9211dbb3fe36b8cb097377f
https://doi.org/10.1002/cber.19961291212

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Synthesis of N-Acyliminium Salts by Reaction of Nitrilium Salts with Ketones

Autor: Johannes C. Jochims, Mahmoud Al-Talib, Sabine Hehl, Rüdiger Stumpf, Helmut Fischer, Magdi Zaki

Publikováno v: Scopus-Elsevier

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c82bfb12cb0740a63bb19f7dc950a87e
https://doi.org/10.1055/s-1996-4340

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Synthesis and Crystal Structure of Novel 1,3-Heterobinuclear Complexes with an Unusual Cyclic C4R3 Bridging Ligand

Autor: Helmut Fischer, Gerhard Roth, Rüdiger Stumpf, Frédéric R. Leroux

Publikováno v: Organometallics. 15:3723-3731

Pentacarbonyl(dimethylvinylidene)chromium, [(CO)5CrCCMe2] (1), reacts with the alkynyl complexes [Cp(CO)2FeC⋮CR] (4a−e; R = nBu (a), Me (b), Ph (c), C6H4NO2-p (d), COOMe (e)), [Cp(CO){P(OMe)3}FeC⋮CnBu] (6), [Cp(CO){PPh3}FeC⋮CnBu] (8), and [Cp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::98ae473d8b96fe4fb94f90ffbe6c7cb9
https://doi.org/10.1021/om960278t

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Aufbau Ost auf sächsisch

Autor: Rüdiger Stumpf

Publikováno v: kma - Klinik Management aktuell. 9:48-50

Generalstabsmäßig haben die Sachsen ihre marode Krankenhausinfrastruktur modernisiert und dabei fast die Hälfte der Betten abgebaut. Durch gezielte Förderung sind Schwerpunktzentren mit moderner Medizintechnik entstanden. Langsam wird nun auch im

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https://doi.org/10.1055/s-0036-1573043

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