Výsledky vyhledávání - "Bill D. Zwick"

Mono(pentamethylcyclopentadienyl)uranium(III) Complexes: Synthesis, Properties, and X-ray Structures of (η-C5Me5)UI2(THF)3, (η-C5Me5)UI2(py)3, and (η-C5Me5)U[N(SiMe3)2]2

Autor: David Clark, Ann R. Schake, Raymond J. Butcher, Bill D. Zwick, John G. Watkin, John C. Gordon, Larry R. Avens, Brian L. Scott, Carol J. Burns

Publikováno v: Organometallics. 19:451-457

The uranium(III) iodide complex UI{sub 3}(THF){sub 4} reacts cleanly at ambient temperature with 1 equiv of sodium and potassium pentamethylcyclopentadienide salts in tetrahydrofuran to form the mono-ring uranium(III) complex ({eta}-C{sub 5}Me{sub 5}

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7871091c798d46244db1a8e0f2992385
https://doi.org/10.1021/om990718r

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Structural characterization and reactivity studies of the samarium aryloxide complex Sm(O-2,6-Pr2iC6H3)3(THF)2

Autor: Bill D. Zwick, John G. Watkin, John C. Gordon, John C. Huffman, David Clark

Publikováno v: Polyhedron. 15:2279-2289

Reaction of the samarium aryloxide bis-THF adduct Sm(OAr) 3 (THF) 2 ( 1 ; Ar = 2,6-Pr 2 i C 6 H 3 ) with two equivalents of pyridine produces the bis-pyridine complex Sm(OAr) 3 py 2 ( 2 ) in 85% yield. Compound 1 also reacts with an excess of pyridin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::afa2d149fa2de596170266be77ca1d87
https://doi.org/10.1016/0277-5387(95)00351-7

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Solution Study of the Ambient Temperature Monomer-Dimer Equilibrium Th2(OR)8 .dblharw. 2Th(OR)4 (R = CH-i-Pr2) and X-ray Crystal Structures of Th2(OCH-i-Pr2)8, Th(OCH-i-Pr2)4(quin), and ThI(OCH-i-Pr2)3(py)2

Autor: David M. Barnhart, Bill D. Zwick, David Clark, John C. Huffman, John C. Gordon, John G. Watkin

Publikováno v: Inorganic Chemistry. 34:5416-5423

The thorium metallacycle [(Me{sub 3}Si){sub 2}N]{sub 2}Th[N(SiMe{sub 3})(SiMe{sub 2}CH{sub 2})] (1) reacts with 4 equiv of 2,4-dimethylpentan-3-ol(diisopropylmenthanol) in toluene at room temperature to produce dimeric Th{sub 2}(OR){sub 8}(2)(R=CH-i-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::474352bdee6ec295375f3167d6a07254
https://doi.org/10.1021/ic00126a008

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Multinuclear NMR, Raman, EXAFS, and X-ray diffraction studies of uranyl carbonate complexes in near-neutral aqueous solution. X-ray structure of [C(NH2)3]6[(UO2)3(CO3)6].cntdot.6.5H2O

Autor: Mary P. Neu, S.A. Ekberg, David K. Shuh, Wayne W. Lukens, Bill D. Zwick, Jerome J. Bucher, J.W. Gohdes, Patrick G. Allen, Norman M. Edelstein, Nikolas Kaltsoyannis, C. D. Tait, E. A. Hudson, Tobias Reich, P.D. Palmer, David Clark

Publikováno v: Inorganic Chemistry. 34:4797-4807

C-13 and O-17 NMR and Raman spectroscopies were used to monitor the fractions of UO2(CO3)(3)(4-) (1) and (UO2)(3)(CO3)(6)(6-) (2) in aqueous carbonate solutions as a function of pH, ionic strength, carbonate concentration, uranium concentration, and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b0012cf973801853cf0c648971ba946
https://doi.org/10.1021/ic00123a013

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A Samarium Alkyl-Aryloxide Complex Containing a Trigonal Bipyramidal Carbon Atom: X-ray Structure of [Li(THF)]2[Sm(O-2,6-i-Pr2C6H3)3(CH2SiMe3)2]

Autor: John G. Watkin, Bill D. Zwick, John C. Huffman, David Clark, John C. Gordon

Publikováno v: Organometallics. 13:4266-4270

Reaction of Sm(O-2,6-i-Pr[sub 2]C[sub 6]H[sub 3])[sub 3](THF)[sub 2] (1) with 3 equiv of LiCH[sub 2]SiMe[sub 3] in THF solution produces the salt complex (Me[sub 3]SiCH[sub 2])Sm[([mu]-OAr)([mu]-CH[sub 2]SiMe[sub 3])Li (THF)][([mu] -OAr)[sub 2]Li(THF

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd193539d04e2c0057004ce2221175d6
https://doi.org/10.1021/om00023a032

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Characterization of the nitrate complexes of Pu(IV) using absorption spectroscopy, 15N NMR, and EXAFS

Autor: John M. Berg, Coleman A. Smith, S. Frederic Marsh, D. Kirk Veirs, Bill D. Zwick, Steven D. Conradson, Patrick G. Allen

Publikováno v: Journal of Alloys and Compounds. :328-332

The nitrate complexes of Pu(IV) are studied in solutions containing nitrate at concentrations up to 13 molar (M) using absorption spectroscopy, 15N nuclear magnetic resonance (NMR), and extended X-ray absorption fine structure (EXAFS). Four major nit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::65ca3b1407c45bee0de34ad739c40ebd
https://doi.org/10.1016/0925-8388(94)90924-5

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Synthesis, Properties, and X-ray Structures of the Lanthanide .eta.6-Arene-Bridged Aryloxide Dimers Ln2(O-2,6-i-Pr2C6H3)6 and Their Lewis Base Adducts Ln(O-2,6-i-Pr2C6H3)3(THF)2 (Ln = Pr, Nd, Sm, Gd, Er, Yb, Lu)

Autor: Bill D. Zwick, John C. Gordon, Rebecca L. Vincent, David M. Barnhart, John G. Watkin, David Clark, John C. Huffman

Publikováno v: Inorganic Chemistry. 33:3487-3497

Reaction of 3 equiv of 2,6-diisopropylphenol with Ln[N(SiMe{sub 3}){sub 2}]{sub 3}(Ln=Nd, Sm, Er) in refluxing toluene and subsequent crystallization yield pale blue (Nd), deep yellow (Sm), or light pink (Er) crystals of the tris(aryloxide) complexes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a3560ffb46c565804f4befd6e35ce95
https://doi.org/10.1021/ic00094a009

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ChemInform Abstract: A New Family of Chelating Diphosphines with a Transition Metal Stereocenter in the Backbone: Novel Applications of 'Chiral-at-Rhenium' Complexes in Rhodium-Catalyzed Enantioselective Alkene Hydrogenations

Autor: Klemenz Kromm, Oliver Meyer, Frank Hampel, Bill D. Zwick, John A. Gladysz

Publikováno v: ChemInform. 33

The title compounds are accessed by sequences starting with racemic and enantiomerically pure [(eta5-C5H5)Re(NO)(PPh3)(CH3)]. Reactions with chlorobenzene/HBF4, PPh2H, and tBuOK give the phosphido complex [(eta5-C5H5)Re(NO)(PPh3)(PPh2)] (3). Reaction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3e456f9add9d7a0ce749cb54a8a8f326
https://doi.org/10.1002/chin.200213037

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