transition state


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transition state

[tran′zish·ən ‚stāt]
(physical chemistry)
References in classic literature ?
But Queequeg, do you see, was a creature in the transition state -- neither caterpillar nor butterfly.
At sun-rise this man went from his hammock to his mast-head at the fore; and whether it was that he was not yet half waked from his sleep (for sailors sometimes go aloft in a transition state), whether it was thus with the man, there is now no telling; but, be that as it may, he had not been long at his perch, when a cry was heard --a cry and a rushing --and looking up, they saw a falling phantom in the air; and looking down, a little tossed heap of white bubbles in the blue of the sea.
Good, perhaps, if it be that the time for the old "veast" has gone by; that it is no longer the healthy, sound expression of English country holiday-making; that, in fact, we, as a nation, have got beyond it, and are in a transition state, feeling for and soon likely to find some better substitute.
Is there any wilderness of sand in the deserts of Arabia, is there any prospect of desolation among the ruins of Palestine, which can rival the repelling effect on the eye, and the depressing influence on the mind, of an English country town in the first stage of its existence, and in the transition state of its prosperity?
It relates to a chemical compound, called a transition state analogue, with a structure that resembles the transition state of a substrate molecule that can block the active site of a bacterial enzyme.
The transition state of the [k.sub.2] step was optimized using the MNP/HU2 reactant and the MNPHU2/[H.sub.2]O product (called [TS.sub.k2]; Fig 4).
Following the reaction path toward the ODC(II) (see Figure 8(c)), we find the transition state (see Figure 8(b)) and the computed relaxation energy is 0.46 eV higher than the [T.sub.1] state of [Si.sub.5][O.sub.15][H.sub.12] cluster model with ODC(I).
According to the variational transition state theory (VTST) and RRKM [36] theory, the kinetic calculations for this multichannel and multiwell reaction were carried out via the MultiWell 2011 [27, 37] program on the basis of the PES obtained above in order to identify the likely mechanism and the branching ratios of various product channels.
Thus, in another perspective, analysis methods were developed to identify the transition state on the time series of the traffic flow states.
AS the major changes made under Transition State 1 continue to bed in, the force has turned its attention to the next phase of the WMP2020 modernisation programme.
To have a deep understanding of its thermochemical transformation during the decomposition of oil shale, the conversion of organic nitrogen is experimentally studied and a set of physical models of nitrogen-containing groups is constructed and solved using the quantum chemical transition state theory (TST) in the Gaussian 09, Revision A.02 package.

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