Challenges for Experimentalists

In the absence of comprehensive theory, there is an obvious need for experimental determination of the properties of expanded fluid metals over the widest possible ranges of temperature and pressure. Experimental data are of direct value for applications of the specific metals studied. But more generally, one hopes that careful experiments on a few well-chosen systems may provide the insight required for creation 

Ashcroft, N. W, and Mermin, N. D. 1976. Solid State Physics. Philadelphia Holt-Saunders. 

Egelstaff, P. A. 1967a. An Introduction to the Liquid State, chap. 3. London Academic 1967b. Intro, to the Liquid State, chap. 4. 

Glazov, V. M., Chizhevskaya, S. N., and Glagoleva, N. N. 1969. Liquid Semiconductors. New York Plenum. 

Teplofiz. Vyz. Temp. 22 208 (Engl, trans. 1984. High Temp. 22 157). 

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Timoshkin AY, Schaefer HE (2002) From parasitic association reactions toward the stoichiometry controlled gas phase synthesis of nanoparticles, A theoretically driven challenge for experimentalists. Chemical Record 2(5), 319-338... 

Details of this diagram, such as the nature of the redox-active states in the semiconductor, remain unknown. These and other important issues represent formidable challenges for experimentalists and theorists studying these and future generations of dye-sensitized electrodes. 

The Time Scales and Mechanism of Quasi-coherent Excitation Hopping Within B850/B875 Rings. This appears to be an area where simple theory cannot apply. It will be a challenge for experimentalists and theorists to address this issue collaboratively. For example, it is not clear whether linear coupling to a harmonic bath is adequate to describe such systems. For example, it may be necessary to include multiphonon and Duschinsky effects on the dynamics in order to describe the influence of temperature on such systems. 

A major challenge for experimentalists would be to study the microscopic act of the hole rupture, i.e. hole flickering and propagation. However, the holes are shortlived and the systems are very temperature sensitive, which makes these experiments difficult. 

The simplest hydrocarbon, methane, has posed a wealth of challenges to experimentalists and theoreticians seeking to discern its combustion mechanism. Methane s reactions have been explored in a wide variety of contexts over the past several decades. We have discussed these briefly the interested reader is referred to the reviews cited in our previous discussion for further details. Due to the scope of this review, we are primarily interested in these reactions insofar as they provide useful benchmarks for the reactions of larger alkylperoxy (RO2 ) and alkoxy (RO ) systems. With respect to the reactive intermediates present in methane combustion and their implications for larger systems, Lightfoot has published a review on the atmospheric role of these species, while Wallington et al. have provided multiple overviews of gas-phase peroxy radical chemistry. Lesclaux has provided multiple reviews of developments in peroxy radical chemistry. Batt published a review of the gas-phase decomposition reactions available to the alkoxy radicals. ... 

The theoretical predictions for transition frequencies and decay rates in Ps have presently reached a level of precision which is a challenge to experimentalists ... 

The challenge for the theoretician is still the experiment, either to establish the experimental data or to make predictions which are again a challenge for the experimentalists. Thus, there is an intrinsic demand in chemistry to support the interplay between experimentalists and theoreticians. 

Supercritical fluids and their mixtures have many applications in pharmaceutical, food, and other industries. In addition, they constitute a challenge for many experimentalists and theoreticians, because they exhibit unusual physico-chemical properties that cannot be explained using the methods usually employed for mixtures far from the critical point. One of the most striking examples of such a... 

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