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We analyze absorption, photoluminescence (PL), and resonant Raman spectra of N,N'-diphenyl-N,N'-bis(3-methylphenyl)-(1,1'-biphenyl)-4,4'-diamine (TPD), with the aim of providing a microscopic interpretation of a significant Stokes shift of about 0.5 eV that makes this material suitable for stimulated emission. The optical spectra were measured for TPD… (More)
In a previous paper, we studied the rich strategic and information-revelation considerations arising in simple guessing game which is very popular in some European countries: the so-called Chinos game. Here, we complement that analysis with a preliminary study of the learning dynamics induced when players no longer can assume that others play according to… (More)
The herringbone pattern is a pervasive structural motive found in most molecular crystals involving aromatic compounds. A plot of the experimental sublimation enthalpies of members of increasing size of the acene, phenacene and p-phenyl families versus the number of carbons uncovers a linear relationship between the two magnitudes, suggesting a major role… (More)
[** ] The authors wish to thank Drs. C. Rogero and J. I. Pascual for critically reading the manuscript and providing us with the experimental results shown in this paper.