Intensive sites

Several air quality Hg intensive sites exist and could be used as templates to determine what additional air quality measurements should be included in evaluating the performance of air quality models. These include the USEPA SuperSite programs (http //www.epa.gov/ttn/amtic/supersites.html) and the Southeastern Aerosol Research and Characterization (SEARCH) project (http //www.atmospheric-research.com/ studies/SEARCH/index. html). 

In contrast to the situation observed for Pt(4,6-dFppy)(acac), the photophysical properties of Ir(4,6-dFppy)2(acac) depend distinctly on the individual site and on the host material [50], A similar behavior has also been observed for other Ir(III) compounds [53, 72, 101, 106], Table 3 summarizes characteristic data for Ir(4,6-dFppy)2(acac). The spectroscopic discussion presented above refers to a prominent low energy site (site A). Another intense site of higher energy observed in CH2C12 (site B) exhibits distinctly smaller ZFS parameters than determined for site A (Sect. 4.1). For the host material THF, giving only broadband spectra at cryogenic temperatures, nonmonoexponential emission decay curves were observed in a wide... 

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