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:
Yen Chen Lin, Chia Chun Chen, Bing-Joe Hwang, Ching-Hsiang Chen, Di Yan Wang, Feng Ju Lai, Hung Lung Chou, Jyh-Fu Lee
Publikováno v:
Journal of the American Chemical Society. 134:10011-10020
The finding of new metal alloyed nanocrystals (NCs) with high catalytic activity and low cost to replace PtRu NCs is a critical step toward the commercialization of fuel cells. In this work, a simple cation replacement reaction was utilized to synthe
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. 131:4995-5000
We found that metal-organic framework (MOF) compounds M(2)(dhtp) (open metal M = Mg, Mn, Co, Ni, Zn; dhtp = 2,5-dihydroxyterephthalate) possess exceptionally large densities of open metal sites. By adsorbing one CH(4) molecule per open metal, these s
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. 125:6634-6635
EDTA-derivatized deoxythymidine (dT-EDTA), incorporated into DNA and complexed to Fe2+ in the presence of dithiothreitol, is a widely used reagent for sequence-specific cleavage of duplex DNA. Using HPLC/electrospray mass spectrometry, we show that c
Autor:
Lester Andrews, Sefik Suezer
Publikováno v:
Journal of the American Chemical Society. 109:300-304
One-to-one complexes between Li, Na, K, and Cs atoms and NH/sub 3/ have been studied by using matrix IR spectroscopy. New bands at 1133, 1079, 1064, and 1049 cm/sup -1/ are assigned to perturbed nu/sub 2/ modes, and bands at 3277, 3294, 3292, and 328