508 research outputs found
meso-Tetrakis(ethylenediamine)-1κ^4N,N';3κ^4N,N'-di-μ-sulfidoacetato-1:2κ^3O,S:S;2:3κ^3S:S,O-dicobalt(III)silver(I) triperchlorate
Non-resonant direct p- and d-wave neutron capture by 12C
Discrete gamma-rays from the neutron capture state of 13C to its low-lying
bound states have been measured using pulsed neutrons at En = 550 keV. The
partial capture cross sections have been determined to be 1.7+/-0.5,
24.2+/-1.0, 2.0+/-0.4 and 1.0+/-0.4 microb for the ground (1/2-), first (1/2+),
second (3/2-) and third (5/2+) excited states, respectively. From a comparison
with theoretical predictions based on the non-resonant direct radiative capture
mechanism, we could determine the spectroscopic factor for the 1/2+ state to be
0.80 +/- 0.04, free from neutron-nucleus interaction ambiguities in the
continuum. In addition we have detected the contribution of the non-resonant
d-wave capture component in the partial cross sections for transitions leading
to the 1/2- and 3/2- states. While the s-wave capture dominates at En < 100
keV, the d-wave component turns out to be very important at higher energies.
From the present investigation the 12C(n,gamma)13C reaction rate is obtained
for temperatures in the range 10E+7 - 10E+10 K.Comment: Accepted for publication in Phys. Rev. C. - 16 pages + 8 figure
Chiral Scrambling and Independent Crystallization of D_4, L_4, and D_2L_2 Isomers of an Au^I_4Co^III_2 Hexanuclear Complex with Mixed Penicillaminate and Bis(diphenylphosphino)ethane
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic Chemistry, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acs.inorgchem.5b0154
Λ_LΛ_L-Bis[(μ-L-cysteinato)-1:2κ^3S:N,S;1:3κ^3S:N,S-tetrakis(ethylenediamine)-2κ^4N,N';3κ^4N,N'-dicobalt(III)silver(I) Tris(perchlorate) Pentahydrate
- …