Zobrazeno 1 - 10
of 12
pro vyhledávání: '"35"'
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
Publikováno v:
Journal of the American Chemical Society. 140(3)
The cubic ZnS structure type and the size-dependent properties of related nanoparticles are of both fundamental and technological importance. Yet, it remains a challenge to synthesize large atom-precise clusters of this structure type. Currently, onl
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:
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
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. 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