Výsledky vyhledávání - "Lenore M. Koczon"

Akademický článek

Reactions of four coordinate nickeL(II) phospihne complexes with elemental sulphur

Autor: Wilfred A.A. Ddamba, Lenore M. Koczon, James Darkwa

Publikováno v: Bulletin of the Chemical Society of Ethiopia, Vol 5, Iss 2, Pp 73-79 (1991)

Bull. Chem. Soc. Ethiop., 5(2), 73-79 (1991).

Externí odkaz: https://doaj.org/article/8ea7b382364945f0ab069129290590c8

Synthesis and characterization of cyclopentadienylnickel(II) thiolates. Crystal structure of [(η5-C5H5)Ni(SC6H5) (PPh3)]

Autor: James Darkwa, Florence Bothata, Lenore M. Koczon

Publikováno v: Journal of Organometallic Chemistry. 455:235-240

The thiolate complexes CpNi(SR)(PPh 3 ) ( 1 ), (Cp = η 5 -C 5 H 5 , R =1cr; C 6 H 5 and C 6 H 4 Me-4 were prepared by the reaction of CpNi(PPh 3 ) (X =1cr; Cl, Br, or I) with HSC 6 H 5 and HSC 6 H 4 Me-4 respectively, in the presence of Et 3 N. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f85c28cebf00c206340eb701cf901ae9
https://doi.org/10.1016/0022-328x(93)80404-y

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Synthesis and Characterization of Nickel Thiolate Complexes

Autor: Lenore M. Koczon, John M. Rost, James Darkwa

Publikováno v: Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry. 23:509-522

Reactions of [NiCI(PPh3)(dtc)] (dtc = diethyldithiocarbamate, S2CNEt2) with mono- and di-thiols in the presence of Et3N afford the dimers [Ni(μ-SR)(dtc)]2 (R = C6H5, C6H4Me-p, C2H5 and CMe3) and the monomers [Ni(HS2R′)(dtc)] (R′ = C6H3Me-p or (C

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b03ea30afa0ca300cf5f0b38a71b8e72
https://doi.org/10.1080/15533179308016655

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Reactions of coordinated dinitrogen—XXII. Synthesis, characterization and reactions of hydrazido(2-) complexes of molybdenum. Crystal structures of two hydrazido(2-) complexes

Autor: Lidun Ma, Shadid N. Shaikh, Robert C. Tisdale, Kassu Gebreyes, Lenore M. Koczon, Jon Zubieta, T. Adrian George

Publikováno v: Polyhedron. 9:545-551

The reactions of anhydrous HX (X = Br, Cl) with trans-Mo(N2)2(triphos) (PPh3) (1) where triphos = PhP(CH2CH2PPh2)2, yield [MoX(NNH2)(triphos)(PPh3)]X as a mixture of isomers: 1A(X) and 1B(X). In solution, PPh3 dissociates rapidly from the B isomer. A

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ffe2a42a61bddaf6f961420b75fefeeb
https://doi.org/10.1016/s0277-5387(00)86232-4

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Reactions of coordinated dinitrogen. 18. Formation of ammonia and hydrazine from the reactions of acids with bis(dinitrogen) complexes of molybdenum. Identification and isolation of intermediates. Possible analogy with the hydrazine-forming property of nitrogenase

Autor: T. Adrian George, Colleen M. Noddings, R. K. Lester, John A. Baumann, Daniel B. Howell, Lenore M. Koczon, Gerald E. Bossard

Publikováno v: Inorganic Chemistry. 24:3568-3578

Etude des reactions de HBr et HCl anhydres avec le trans-[Mo(N 2 ) 2 (triphos)(PR 3 )] dans THF (donnant NH 3 ) ou benzene (donnant hydrazine)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eb840128feb7684fdbd347344bc4d8b6
https://doi.org/10.1021/ic00216a019

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Reactions of coordinated dinitrogen. 12. Identification of intermediates in the conversion of molybdenum-bound dinitrogen into ammonia and hydrazine. Factors affecting the ammonia-forming reaction

Autor: Daniel B. Howell, R. K. Lester, Lenore M. Koczon, T.A. George, Gerald E. Bossard

Publikováno v: Inorganic Chemistry. 22:1968-1970

When bis(dinitrogen) complexes of molybdenum and tungsten are treated with an excess of strong acid, with few exceptions, a complex containing the hydrazido(2-) ligand has been identified either as a product in the reaction or as an intermediate on t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dcc7c9f5534a14faafc5edebaffc5c7d
https://doi.org/10.1021/ic00156a007

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The structural characterization of two isomeric hydrazido(2-) intermediates in the conversion of molybdenum-bound dinitrogen to ammonia and hydrazine

Autor: Kassu Gebreyes, Lenore M. Koczon, T. Adrian George, Jon Zubieta, Robert C. Tisdale

Publikováno v: Inorganic Chemistry. 25:405-407

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ab360df8c34597007549d6cb88f33220
https://doi.org/10.1021/ic00224a004

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ChemInform Abstract: Reactions of Coordinated Dinitrogen. Part 18. Formation of Ammonia and Hydrazine from the Reactions of Acids with Bis(dinitrogen) Complexes of Molybdenum

Autor: Lenore M. Koczon, Daniel B. Howell, C. M. Noddings, Gerald E. Bossard, T. A. George, John A. Baumann, R. K. Lester

Publikováno v: Chemischer Informationsdienst. 17

Die Reaktionen von HBr und HCl mit trans- [Mo(N2)2(triphos)(PR3)] (triphos: PhP(CH2CH2PPh2)2; PR3: PPh3 (I) und PMePhz (II)) werden in THF und in Benzol untersucht.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::42bf5d43cfcd8a0af9f45f0500cf48bd
https://doi.org/10.1002/chin.198606037

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ChemInform Abstract: Reactions of Coordinated Dinitrogen. Part 17. Structural Characterization of Two Isomeric Hydrazido(2-) Intermediates in the Conversion of Molybdenum-Bound Dinitrogen to Ammonia and Hydrazine

Autor: Lenore M. Koczon, Jon Zubieta, T. A. George, Kassu Gebreyes, R. C. Tisdale

Publikováno v: Chemischer Informationsdienst. 17

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::009b758e82a2c9b492c6fb997ce074b4
https://doi.org/10.1002/chin.198627257

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ChemInform Abstract: REACTIONS OF COORDINATED DINITROGEN. 13. A BIS(DINITROGEN) COMPLEX OF MOLYBDENUM: A CHEMICAL RESEMBLANCE TO NITROGENASE?

Autor: T. Adrian George, Lenore M. Koczon

Publikováno v: Chemischer Informationsdienst. 15

Les reactions de trans-Mo(V 2 ) 2 (triphos)(PPh 3 ) avec HBr anhydre dans THF anhydre, pendant 60 h ou plus donnent des rendements eleves en NH 3 , mais que des traces d'hydrazine. Par perte de N 2 , on obtient des complexes hydrazido qui a leur tour

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3b38ac334c29ac268eb5e071652a5020
https://doi.org/10.1002/chin.198402254

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