Energy pooling

Under low-pressure conditions in the laboratory or in the upper atmosphere where collisional deactivation is slow, weak radiative transitions from these two excited singlet states to the ground state are observed. The (0, 0) emission bands of the b X - X3X and the a Ag -> X3X transitions occur at 761.9 and 1269 nm, respectively. The 761.9-nm band due to b X is often observed in systems containing the a Ag state because of the energy pooling reaction ... 

The discussion of this section has neglected all effects resulting from mass transport and diffusion in the atmosphere, and to this extent is inadequate. A number of other chemical processes may also modify the picture presented here. In particular, there is the possibility that 02(lS +) could be formed from 02(1A I) by the energy-pooling process (11), although... 

OaCE/) 02 y 2 x lO"3 Value depends on rate chosen for energy pooling 24... 

The 02( Z+) is also produced from the energy pooling reaction (45, 282, 515)... 

Tissues Store Biochemical Energy in Three Major Forms Each Tissue Makes Characteristic Demands and Contributions to the Energy Pool... 

Hu, Y., Wilson, G. S. A temporary local energy pool coupled to neuronal activity fluctuations of extracellular lactate levels in rat brain monitored with rapid-response enzyme-based sensor. /. Neurochem. 1997, 69 1484-1490. 

Annihilation Two atoms or molecular entities both in an excited electronic state interact often (usually upon collision) to produce one atom or molecular entity in an excited electronic state and another in its ground electronic state. This phenomenon is sometimes referred to as energy pooling. 

I Clossaiy of Terms Used in Photochemistry Energy pooling See annihilation. 

It was supposed that, because of a rapid intramolecular energy pooling, infrared laser multiphoton decomposition at low laser fluence usually proceeds via the energetically most favourable reaction channel [26], From the material balance of gaseous decomposition products (Fig. 2) it was inferred that there are common primary steps for both the thermal and the explosive laser-induced decomposition of (fluoromethyl)silanes. 

In a very interesting experiment using the argon-sensitized production of N2(/4 E J ) state of nitrogen, Stedman and Setser have measured the rate of the energy-pooling reaction... 

In their original work on I2 + O2 Arnold et al proposed two plausible dissociation mechanisms. The first involved O2 energy pooling to produce... 

Koffend et al used pulsed photolysis of NF2/HI mixtures at 248 nm to characterize the energy pooling processes defined by reaction (27). A... 

The potential for using NCl(a) in a chemically pumped laser was first examined by Benard et al. These investigators used pulsed CO2 laser pyrolysis of ClNs/SFe/Ar mixtures to generate high concentrations (> 10 cm ) of NCI (a). From the rate of NCI (a) decay in this system they estimated an upper limit for the NCl(a) self-annihilation rate constant of > 8 x Energy pooling between NCI (a) and NF(a)... 

As shown in Oesterhelt s laboratory, gradients of monovalent cations stabilize the ATP level in H. halobium when other energy sources are absent [81,82]. These authors compared the capacities of the K gradient and ATP as energy pools and found that the former is about 250 times larger than the latter (for discussion, see [69]). 

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