Výsledky vyhledávání - "David J. Burkey"

Stability of cyclopentadienyl aryloxide complexes of calcium and barium

Autor: Timothy P. Hanusa, Stephen C. Chmely, David J. Burkey, Melanie J. Harvey

Publikováno v: Journal of Alloys and Compounds. 488:528-532

The synthesis of mono(cyclopentadienyl)aryloxide complexes of calcium and barium has been investigated. The reaction of ICa(ODipp)(thf) 4 (Odipp = [2,6-iPr-OC 6 H 3 O] ― ) with K[C 5 Me 5 ], (Cp 3Si ) 2 Ca (Cp 3Si = C 5 (SiMe 3 ) 3 H 2 ) with K[ODi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d9c5efb7f2056ec032abdb19145adee8
https://doi.org/10.1016/j.jallcom.2008.08.084

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Spirocyclic and Bicyclic Cyclohexadienyl Complexes from Intramolecular Nucleophilic Addition Reactions in Dicationic Arene Complexes

Autor: David J. Burkey, Hyun Sik Chae

Publikováno v: Organometallics. 22:1761-1765

The dicationic arene complexes [(p-cymene)Ru(PhCH2CH2[CH2]nOH)][OTf]2 and [Cp*Ir(PhCH2CH2[CH2]nOH)][OTf]2 (n = 1−2) react with K2CO3 to cleanly generate spirocyclic cyclohexadienyl complexes through intramolecular nucleophilic addition of the alkox

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e570ad14dab3268ec76c32178648e3b2
https://doi.org/10.1021/om030020k

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Steric Influence on the Structure, Magnetic Properties, and Reactivity of Hexa- and Octaisopropylmanganocene

Autor: Timothy P. Hanusa, Gordon T. Yee, Melanie L. Hays, Scott P. Sellers, Victor G. Young, Jason S. Overby, David J. Burkey

Publikováno v: Organometallics. 17:5521-5527

The reaction of KCpni (Cpni = (C3H7)nC5H5-n; n = 3, 4) with MnCl2 in THF produces the metallocenes (Cp3i)2Mn or (Cp4i)2Mn in good yield. Solid-state magnetic susceptibility measurements indicate that orange-red (Cp3i)2Mn is in high-spin/low-spin equi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::987b21445615c83aa90e1c12d1bdcc96
https://doi.org/10.1021/om980596n

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Synthesis, Structures, and Properties of 'Encapsulated' Iron and Cobalt Metallocenes with Highly Isopropylated Cyclopentadienyl Rings

Autor: Melanie L. Hays, Timothy P. Hanusa, and Randall E. Duderstadt, David J. Burkey

Publikováno v: Organometallics. 16:1465-1475

Bis(triisopropylcyclopentadienyl)cobalt, [(i-Pr)3C5H2]2Co, and bis(tetraisopropylcyclopentadienyl)cobalt, [(i-Pr)4C5H]2Co, can be prepared from the reaction of K[(i-Pr)3C5H2] and K[(i-Pr)4C5H], respectively, with CoCl2 in THF. In contrast to [(i-Pr)3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::710c3cf918ab37359057b67b357a18f9
https://doi.org/10.1021/om960740+

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Synthesis and Solution Behavior of (Tetraisopropylcyclopentadienyl)calcium Acetylide Complexes. Molecular Structure of {[(C3H7)4C5H]Ca(μ-C⋮CPh)(thf)}2

Autor: Timothy P. Hanusa, David J. Burkey

Publikováno v: Organometallics. 15:4971-4976

The reaction of (Cp4i)Ca[N(SiMe3)2](thf) (Cp4i = (i-Pr)4C5H) (1) with several terminal alkynes HC⋮CR in either toluene or hexanes produces the corresponding calcium acetylide complexes (Cp4i)Ca[C⋮CR](thf) (2) (R = Ph (2a), Fc (2b), SiMe3 (2c), Si

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::40b917a8844b523bdcaacbd0d8cdfbaf
https://doi.org/10.1021/om960126y

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Effects of steric strain on the bonding in zinc metallocenes: the structure of [(C3H7)4C5H]2Zn

Autor: David J. Burkey, Timothy P. Hanusa

Publikováno v: Journal of Organometallic Chemistry. 512:165-173

Zinc diiodide reacts with the potassium salts of 1,2,4-tri and 1,2,3,4-tetra(isopropyl)cyclopentadiene to form the corresponding zinc metallocenes in high yield. Both compounds are highly air-sensitive, but [(C 3 H 7 ) 4 C 5 H] 2 Zn is isolated as a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0a4da4009370c323b86fa5dc5c373040
https://doi.org/10.1016/0022-328x(95)05952-l

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Structural Lessons from Main-Group Metallocenes

Autor: Timothy P. Hanusa, David J. Burkey

Publikováno v: Comments on Inorganic Chemistry. 17:41-77

The metallocenes of the Group 2 and Group 14 elements display a higher degree of structural and chemical similarity than would be expected based on the differences in their electronic configurations alone. A comparison of their structures suggests th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a02bb0d0de37d4aa70d4493c26248e79
https://doi.org/10.1080/02603599508035781

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Synthesis and structural characterization of Hexa(cyclohexyl) ferrocene, [1,2,4-(C6H11)3C5H2]2Fe

Autor: Jennifer A. Burman, David J. Burkey, Pamela S. Tanner, Timothy P. Hanusa, Melanie L. Hays

Publikováno v: Journal of Organometallic Chemistry. 479:135-139

1,2,4-tricyclohexylcyclopentadiene can be formed from the phase-transfer catalysed addition of cyclohexyl bromide to cyclopentadiene. Reaction of two equivalents of its lithium salt with FeCl 2 in THF produces the corresponding substituted ferrocene.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0901d5bb1343a489ea065742e0b8d45e
https://doi.org/10.1016/0022-328x(94)84100-4

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