Výsledky vyhledávání - "William E. Streib"

Single-Molecule Magnets: Site-Specific Ligand Abstraction from [Mn12O12(O2CR)16(H2O)4] and the Preparation and Properties of [Mn12O12(NO3)4(O2CCH2But)12(H2O)4]

Autor: Pau Artus, Colette Boskovic, Louis-Claude Brunel, William E. Streib, George Christou, Jae Yoo, David N. Hendrickson

Publikováno v: Inorganic Chemistry. 40:4199-4210

Site-selective carboxylate abstraction has been achieved from [Mn(12)O(12)(O(2)CR)(16)(H(2)O)(4)] complexes by treatment with HNO(3) in MeCN. The reaction of the R = Ph or CH(2)Bu(t)() complexes with 4 equiv of HNO(3) gives [Mn(12)O(12)(NO(3))(4)(O(2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70de4826ec1ff7dcf2bddf1fee1e4277
https://doi.org/10.1021/ic010252g

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Use of the dicarboxylate ligand m-phenylenedipropionate for the synthesis of new Mn/O clusters. Synthesis, characterization and magnetic properties

Autor: Ernest R. Davidson, George Christou, William E. Streib, Cristina Cañada-Vilalta, John C. Huffman

Publikováno v: Polyhedron. 20:1375-1380

The quest for new Mn clusters that display large spin ground states or that can serve as a synthetic model for the water oxidation center in PSII has been pursued by using the dicarboxylate ligand m-phenylenedipropionate (mpdp2−). Ligand substituti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::480f6561b1bfcb6c0c160f5ce93adeb3
https://doi.org/10.1016/s0277-5387(01)00622-2

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Os(H)2NO(PiPr3)2+: Mechanism and Energetics of a Room Temperature Reversible Ethyl/Hydridoethylene Equilibrium and Contrasting Double Insertion of Acetylene

Autor: Dmitry V. Yandulov, and William E. Streib, Kenneth G. Caulton, John C. Bollinger

Publikováno v: Organometallics. 20:2040-2046

cis,trans-Os(H)2(NO)L2+ (L = PiPr3) rapidly adds ethylene to give an η2-ethylene complex with C2H4 trans to one hydride and cis to the other. One hydride and the four ethylene protons are exchangin...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f5227bc394c8078229fc51324dd727a
https://doi.org/10.1021/om000901g

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Synthesis and structural characterization of tricarbomethoxymethanate complexes of copper(II) and barium(II) and evaluation of their suitability for MOCVD applications

Autor: David V. Baxter, James D. Martin, William E. Streib, Malcolm H. Chisholm, Vincent F. DiStasi, Kenneth G. Caulton, Sylvain G. Dutremez, Wen-Chung Chiang

Publikováno v: New Journal of Chemistry. 25:400-407

The reaction between Cu(OCH3)2 and HL [L = −C(CO2CH3)3] in THF gives a mixture of two products, CuL(OCH3) and CuL2(THF)2. CuL(OCH3) was characterized by elemental analysis, infrared spectroscopy and thermal decomposition studies, and its insolubili

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e2da6546488fb02ce919d045cff3da3
https://doi.org/10.1039/b008147g

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A New Class of Electron-Rich Unsaturated Molecules: Ru2HnX4-n(PiPr3)4, X = Anion

Autor: Coalter Jn rd, Kenneth G. Caulton, William E. Streib, John C. Huffman

Publikováno v: Inorganic Chemistry. 39:3757-3764

Synthesis, spectroscopic, and X-ray structural characterization of Ru2HnCl4-nL4 (n = 2, 3) and Ru2H2F2L4 (L = PiPr3) are reported. The structure of Ru2HCl3L4 is also reported. These are dinuclear species containing two five-coordinate, approximately

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75111d2cab5c4bd0c33ce47b92aebf88
https://doi.org/10.1021/ic991112y

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A 14-Electron Ruthenium(II) Hydride, [RuH(CO)(PtBu2Me)2]BAr‘4 (Ar‘ = 3,5-(C6H3)(CF3)2): Synthesis, Structure, and Reactivity toward Alkenes and Oxygen Ligands

Autor: Victor G. Young, Kirsten Folting, John C. Bollinger, William E. Streib, Odile Eisenstein, Kenneth G. Caulton, Dejian Huang

Publikováno v: Organometallics. 19:2281-2290

Triflate in RuH(OTf)(CO)L2 (L = PtBu2Me) can be abstracted by NaBAr‘4 (Ar‘ = C6H3(CF3)2) in C6H5F to give 14-electron RuH(CO)L2+, which has agostic donation by one tBu methyl group from each phosphine. This cation binds CH2Cl2 in an η2 fashion,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3e9c98c972b1b603dcd7492d89e7115d
https://doi.org/10.1021/om9910017

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16-Electron Ruthenium(0) Complexes Containing the Ru(NO)L2+ Substructure: Planar RuCH3(NO)L2 vs Sawhorse [Ru(NO)(CC(SiMe3)2)L2]+

Autor: Kenneth G. Caulton, William E. Streib, Odile Eisenstein,‡ and, Dejian Huang

Publikováno v: Organometallics. 19:1967-1972

The synthesis and characterization of RuCl(NO)L2 (L = PiPr3 and PtBu2Me) and RuX(NO)L2 (X = F, CH3, OSO2CF3, and H) are reported. All are planar at Ru. Reaction of Ru(OSO2CF3)(NO)L2 with NaBAr‘4 (Ar‘ = C6H3(CF3)2) in CH2Cl2 gives RuCl(CH2Cl)(NO)L

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b937bfb3584b56c2b7ff5203fc5e35e
https://doi.org/10.1021/om9909892

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Structure and Thermal Reactivity of a Novel Pd(0) Metalloenediyne

Autor: Chris G. Hughes, William E. Streib, Thomas E. Concolino, and Arnold L. Rheingold, Jeffrey M. Zaleski, Nicole L. Coalter

Publikováno v: Journal of the American Chemical Society. 122:3112-3117

We report the X-ray diffraction structure and thermal reactivity of the metalloenediyne compound bis(1,2-bis(diphenylphosphinoethynyl)benzene)palladium(0) (Pd(dppeb)2, 1). The structure of 1 features a tetrahedral Pd(0) center with four phosphorus at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2eabc73c5b73fbbbc1320c6809fe4f4e
https://doi.org/10.1021/ja9944094

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Reductive Cleavage of Aldehydes to Oxo−Alkylidene and Oxo−Alkylidyne Complexes in Their Reactions with W2(OCH2tBu)6(py)2

Autor: William E. Streib, and Eric Lucas, K. Folting, Malcolm H. Chisholm, Katherine C. Glasgow

Publikováno v: Organometallics. 19:884-892

Aldehydes react with W2(OCH2tBu)6(py)2 to give W2(μ-CHR)(O)(OCH2tBu)6(py) compounds, where R = alkyl or aryl, which, in the presence of excess pyridine, yield W2(μ-CR)(μ-O)(OCH2tBu)5(py)2 compounds and neopentanol. A relative order of rates of red

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5c00fa2172470c3d413ba0ddb02c8130
https://doi.org/10.1021/om9902636

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Phosphine Dissociation Mediates C−H Cleavage of Fluoroarenes by OsH(C6H5)(CO)(PtBu2Me)2

Autor: Kenneth G. Caulton, Ramón Bosque, Feliu Maseras, William E. Streib, Kenton B. Renkema, Odile Eisenstein,‡ and

Publikováno v: Journal of the American Chemical Society. 121:10895-10907

OsH(Ph)(CO)L2 (L = PtBu2Me, Ph = C6H5) is synthesized and studied by spectroscopic and DFT (B3LYP) calculations. It forms 1:1 adducts with CO or MeCN, but D2 causes reductive elimination of C6H6. Reaction with C6D6 gives exclusively OsD(C6D5)(CO)L2.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1815bbcbaeb93ceb369e2c4809ddffd8
https://doi.org/10.1021/ja990523a

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