Zobrazeno 241 - 250
of 322
pro vyhledávání: '"35"'
Autor:
Isabel Saura-Llamas, John A. Gladysz
Publikováno v:
Journal of the American Chemical Society. 114:2136-2144
Diastereomerically pure secondary alcohols epimerize to mixtures of diasteromers in C{sub 6}H{sub 5}R at 65-90 {degrees}C in the presence of 10 mol% ({eta}{sup 5}C{sub 5}R{sub 5})Re(NO)(PPh{sub 3})(OCH{sub 3}) (1; R = H, Me). The methoxide ligand of
Publikováno v:
Journal of the American Chemical Society. 113:4505-4517
Aldehydes and ketones have been studied in some detail by using the MM3 molecular mechanics method. Approximately 50 structures have been calculated and compared with experimental data where available. Comparisons are also made of conformational equi
Publikováno v:
Journal of the American Chemical Society. 113:657-665
The intramolecular cycloaddition reactions of the tetraene ethers 10 and 17 and the triene ether 28 were investigated. Acetone-sensitized excitation of 10 led to three intramolecular [2 + 2] cycloadducts 11-13. However, CuOTf-catalyzed photolysis of
Publikováno v:
Journal of the American Chemical Society. 112:8754-8764
The {sup 35}Cl nuclear quadrupole resonance (NQR) spectra of CCl{sub 4} in more than 20 clathrates have been measured in the range 4-200 K. The crystal structures of CCl{sub 4}/Dianin's compound (1), CCl{sub 4}/Fe(AcAc){sub 3} (3), CCl{sub 4}/Ni(SCN)
Publikováno v:
Journal of the American Chemical Society. 112:6768-6771
A molecular dynamics (MD) simulation was performed on the hydrated decapeptide Ala 10 .550H 2 O under periodic boundary conditions. The initial configuration of the peptide was a canonical right-handed α-helix. Over the course of the MD trajectory,
Publikováno v:
Journal of the American Chemical Society. 112:5763-5772
The structures and optical spectroscopy of the CCl{sub 3} radical and cation were studied by ab initio molecular orbital calculations and by experiment. The structures of the X {sup 1}A{sub 1}{prime} (D{sub 3h}) state of the CCl{sub 3} cation and the
Autor:
Mark R. Colsman, Timothy D. Newbound, M. D. Noirot, James S. Frye, Gary Wulfsberg, Steven H. Strauss, Oren P. Anderson, Laura J. Marshall, Mary M. Miller
Publikováno v:
Journal of the American Chemical Society. 112:2349-2362
The complexes [Ag(CH 2 Cl 2 )(OTeF 5 )] 2 , [Ag(1,2-C 2 H 4 Cl 2 )(OTeF 5 )] 2 , Ag 2 (CH 2 Cl 2 ) 4 Pd(OTeF 5 ) 4 , and Ag 2 (1,2-C 2 H 4 Cl 2 ) 4 Pd(OTeF 5 ) 4 have been prepared and studied by solution conductimetry, by tensimetric titrations with
Publikováno v:
Journal of the American Chemical Society. 132:2526-2527
We here report the first direct evidence addressing the possible involvement of Mo in substrate interactions during catalytic turnover. When the alpha-70(Ile) MoFe protein is freeze-trapped during H(+) reduction under Ar, the majority of the resting
Publikováno v:
Journal of the American Chemical Society. 114:2277-2279
The recent isolation of fullerenes such as C{sub 60} and C{sub 70} has led to several studies of the reactivity and physical properties of their excited states. The authors recently reported that triplet C{sub 60} ({sup 3}C{sub 60}) is formed with a
Autor:
Tatsuya Tsukuda, Hironori Tsunoyama
Publikováno v:
Journal of the American Chemical Society. 131:18216-18217
We applied matrix-assisted laser desorption/ionization (MALDI) for mass analysis of Au clusters stabilized by poly(vinyl-pyrrolidone) (PVP) and discovered a series of magic numbers for Au cluster size: 35 +/- 1, 43 +/- 1, 58 +/- 1, 70 +/- 3, 107 +/-