Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Xian B. Powers"'
Publikováno v:
Organometallics
Despite chromium being among the first transition metals ever reported to bind to an NHC, chromium NHC complexes, especially in mid and high oxidation states, have received scant attention. Herein, the synthesis, characterization, and reactivity of a
Publikováno v:
Journal of Heterocyclic Chemistry. 56:2960-2965
Autor:
Alan L. Balch, Katelyn R. Tepper, Marilyn M. Olmstead, Harry C. Dorn, James C. Duchamp, Amanda J. Rothgeb, Steven Stevenson, Xian B. Powers, Mrittika Roy
Publikováno v:
Chemistry – A European Journal. 25:12545-12551
Purified samples of Ho3 N@C2 (22010)-C78 and Tb3 N@C2 (22010)-C78 have been isolated by two distinct processes from the rich array of fullerenes and endohedral fullerenes present in carbon soot from graphite rods doped with Ho2 O3 or Tb4 O7 . Crystal
Autor:
Konstantinos D. Vogiatzis, Jacob Townsend, Elizabeth J. Johnson, David Jenkins, Gaya Elpitiya, Markus R. Anneser, Joseph F. DeJesus, Xian B. Powers
Publikováno v:
Angew Chem Int Ed Engl
Three five-coordinate iron(IV) imide complexes have been synthesized and characterized. These novel structures have disparate spin states on the iron as a function of the R-group attached to the imide, with alkyl groups leading to low-spin diamagneti
Publikováno v:
Organometallics. 38:981-987
N-heterocyclic carbenes (NHCs), and macrocyclic NHCs in particular, have been applied successfully to the stabilization of high oxidation states on transition metal complexes. This access to high oxidation states has enabled their application in oxid
Publikováno v:
Chemistry – A European Journal. 25:3849-3857
Two new molecular boxes, the mono-bromo box [Au6 (Triphos)4 Br](SbF6 )5 ⋅6(CH2 Cl2 ), 4 mB, and the dibromo box, [Au6 (Triphos)4 Br2 ⋅H2 O](SbF6 )4 ⋅4(CH2 Cl2 ), 5 dB, have been prepared in crystalline form. Although constructed from non-lumine
Publikováno v:
Chemistry – A European Journal. 25:2491-2496
Carbon disulfide is cleaved by n-propyldiphenylphosphine and nickel(II) bromide in a one-step process, to form two unprecedented complexes: orange, [Ni(S2 C2 (Pn PrPh2 )2 )Br(Pn PrPh2 )]Br⋅CS2 (1) and purple [Ni{η2 -SC(Pn PrPh2 )2 }Br(Pn PrPh2 )]B
Autor:
Marilyn M. Olmstead, Katelyn R. Tepper, Alan L. Balch, Steven Stevenson, Cody M. Davison, Xian B. Powers
Publikováno v:
Chemistry – A European Journal. 24:13479-13484
A method has been developed for isolating a pure sample of Er2 C94 from the myriad of fullerenes and endohedral fullerenes that are formed in the electric arc process. Crystallographic analysis of Er2 C94 in a cocrystal formed with Ni(OEP) reveals th
Autor:
Alan L. Balch, Reza Babadi Aghakhanpour, Kamran B. Ghiassi, Marilyn M. Olmstead, Daniel T. Walters, Xian B. Powers
Publikováno v:
Journal of the American Chemical Society. 140:7533-7542
Luminescent gold(I) complexes ([Au6(Triphos)4Cl](PF6)5·2(CH3C6H5), [Au6(Triphos)4Cl](AsF6)5·8(CH3C6H5), and [Au6(Triphos)4Cl](SbF6)5·7(CH3C6H5) where Triphos = bis(2-diphenylphosphinoethyl)phenylphosphine) with a boxlike architecture have been pre
Autor:
Susanne Y. Chen, Michael M. Aristov, Kamran B. Ghiassi, Xian B. Powers, Alan L. Balch, Marilyn M. Olmstead
Publikováno v:
Inorganica Chimica Acta. 473:1-8
Attempts to form covalent C S bonds between fullerenes and dithiolene complexes, Ni(S2C2R2)2, lead only to the formation of the cocrystals C60·Ni(S2C2Ph2)2·0.5C7H8 and 2C70·2Ni(S2C2Ph2)2·C7H8. Both cocrystals contained pairs of Ni(S2C2Ph2)2 molec