Zobrazeno 1 - 10
of 12
pro vyhledávání: '"35"'
Autor:
Brandon Q. Mercado, Marilyn M. Olmstead, Christine M. Beavers, Zhimin Wang, Ziyang Liu, Bo Hong, Jin Hongxiao, Hua Yang, Hongyu Zhen, Alan L. Balch
Publikováno v:
Journal of the American Chemical Society. 133:16911-16919
The carbon soot obtained by electric arc vaporization of carbon rods doped with Sm(2)O(3) contains a series of monometallic endohedral fullerenes, Sm@C(2n), along with smaller quantities of the dimetallic endohedrals Sm(2)@C(2n) with n = 44, 45, 46,
Autor:
Megan E. Fieser, Joseph W. Ziller, Filipp Furche, Matthew R. MacDonald, Jefferson E. Bates, William J. Evans
Publikováno v:
Journal of the American Chemical Society. 134:8420-8423
The first molecular complexes of holmium and erbium in the +2 oxidation state have been generated by reducing Cp'(3)Ln [Cp' = C(5)H(4)SiMe(3); Ln = Ho (1), Er (2)] with KC(8) in the presence of 18-crown-6 in Et(2)O at -35 °C under argon. Purificatio
Autor:
Haiping Lin, Pingyun Feng, Min Luo, Youyong Li, Tao Wu, Jiaxu Zhang, Dongsheng Li, Wang Wei, Huajun Yang
Publikováno v:
Journal of the American Chemical Society. 140(36)
Supertetrahedral oxychalcogenide T n nanoclusters (NCs, n denotes the number of metal-chalcogen layers) integrate chemically distinct but ordered oxygen and chalcogen sites in zinc-blend-type "quantum dots". They therefore offer a new level of contro
Autor:
Filipp Furche, William J. Evans, Guo P. Chen, David H. Woen, Timothy J. Boyle, Joseph W. Ziller
Publikováno v:
Journal of the American Chemical Society. 139(42)
The first (N═N)2– complex of a rare-earth metal with an end-on dinitrogen bridge, {K(crypt)}2{[(R2N)3Sc]2[μ-η1:η1-N2]} (crypt = 2.2.2-cryptand, R = SiMe3), has been isolated from the reduction of Sc(NR2)3 under dinitrogen at −35 °C and char
Autor:
Brian M. Hoffman, Joshua Telser, Brett M. Barney, Peter E. Doan, Lance C. Seefeldt, Robert Y. Igarashi, Dennis R. Dean
Publikováno v:
Journal of the American Chemical Society. 133:17329-17340
N(2) binds to the active-site metal cluster in the nitrogenase MoFe protein, the FeMo-cofactor ([7Fe-9S-Mo-homocitrate-X]; FeMo-co) only after the MoFe protein has accumulated three or four electrons/protons (E(3) or E(4) states), with the E(4) state
Publikováno v:
Journal of the American Chemical Society. 133:15886-15889
An entirely new type of chalcogenide cluster and a new structural mechanism for the formation of large semiconducting tetrahedral clusters have been revealed as a result of crystallization of a templated indium sulfide consisting of an unprecedented
Publikováno v:
Journal of the American Chemical Society. 132:10823-10831
Supertetrahedral Tn clusters are exact fragments of cubic ZnS-type lattice and are often formed in situ as building units for the construction of 3-D open-framework chalcogenide materials. Small Tn clusters can also be synthesized in discrete forms,
Publikováno v:
Journal of the American Chemical Society. 120:1124-1132
A disulfide-bridged two-stranded α-helical coiled-coil peptide has been designed which undergoes a random coil to α-helical transition at pH 7 and 20 °C upon metal binding to two sites engineered into the molecule. The metal binding coiled-coil, d
Publikováno v:
Journal of the American Chemical Society. 134(8)
Supertetrahedral Tn clusters are exact fragments of a cubic ZnS type lattice. Thus far, Tn clusters up to T4 with 20 metal sites can be synthesized in a discrete molecular form. Yet, synthesis of larger discrete supertetrahedral clusters still remain
Autor:
Mu-Hyun Baik, Xiaofan Yang
Publikováno v:
Journal of the American Chemical Society. 126(41)
High-level DFT calculations indicate that the singlet ground state of the water-oxidizing blue Ru dimer [(bpy)2(OH2)RuIIIORuIII(OH2)(bpy)2]4+ is not due to a strong coupling of the excess electrons from each of the low-spin d5 RuIII centers across th