UV-vis-NIR absorption spectra

Fig. 7 UV-vis-nIR absorption spectra of 3+ trimer 46 (line), neutral trimer 46a (dots) and 2+ trimer 46b (dashes) containing ortho-metallated pyq, measured in dichloromethane solutions...

Figure 7. UV-vis-NIR absorption spectra of RC60+ generatedfrom the corresponding fuller enols in CF3SO3H at room temperature. The inset shows the absorptions in the vis-NIR region. (Reproduced from reference 13. Copyright 1999 American Chemical Society.)...

The UV-vis-NIR absorption spectra of newly isolated EMFs Ce2 C78 and Y2 C84 were recorded between 300 and 1100 nm in toluene solution. The spectrum of Y2 C84 (Fig. 4) is remarkably rich with characteristic absorption bands at 355, 482, 625, 710 and 785 nm. The onset of the absorption spectrum is at 785 nm and corresponds to the lowest energy electronic transition approximately the HOMO-LUMO energy gap. Figure 3 shows the UV-vis spectra of Ce2 C78 with several... 

Figure 14. UV-vis-NIR absorption spectra of CI2CH-C70 generatedfrom the corresponding fullerenols in CFsSOsH at room temperature. Cell length 1 cm. (a) 1017 xlO M. (b) 5.90 x 10 M. (Reproduced with permission from reference 15. Copyright 2005 Wiley-VCH.)...

UV-Vis-NIR absorption spectra of structural isomers for a metalloful-lerene generally differ from each other. Such differences stem from the fullerene cage (isomer) structure as well as from the difference in charge state of the fullerene. For example, isomers I and II of La Cg2 (Yamamoto et al., 1994b), Y Cg2 (Inakuma et al., 1995) and Sc Cg2 (Inakuma and Shinohara, 2000) have different spectral features in their respective absorption spectra (cf. Figure 21). 

FIGURE 21 UV-Vis-NIR absorption spectra of isolated SctsiCgj (I, II) in CSj solution. The energy of the onset Sc C82 (II) (<0.95 eV) is much larger than that of Sc Cs2 (I) (0.62 eV). The overall spectral features are quite different with each other. 

Additionally, UV-VIS-NIR absorption spectra show that the electronic transitions associated with different individual nanotubes reveal the isolation state by the appearance of a fine structure in the absorption band, associated with En and E22 transitions [129]. 

Figure 5.5 Characteristic UV-Vis NIR absorption spectra of self-doped poly(3-alkylsulfonate pyrrole) thin films with propyl (n = 3), butyl (n = 4), and hexyl ( = 6) derivatives, respectively, on ITO glass electrodes. (Reprinted with permission from Chemistry of Materials, 1, 650. Copyright (1989) American Chemical Society.)...

Fig. 21 (a) UV-Vis-NIR absorption spectra obtained during spectroelectrochemical analysis of RuRu20, (o = open, c = closed), (b) CV of RuRu20(o) at 0.2 Vs with two consecutive scans (solid line), and scan of RuRu20(o) obtained after irradiation at 350 ran (dotted line). The inset shows a scan of RuRu20(o) at 50 Vs. ... 

Fig. 12.35 Solution-based analyses of the supramolecular oligomeric system [42 47] . (a) UV-vis-NIR absorption spectra of 42, 47, and 42 -l- 47 recorded in chloroform at 298 K. (b) Partial H NMR spectra (600 MHz, 298 K) of 1) 42 (0.7 mM), II) 42 (0.7 mM), ID) 42 + 47 (0.7 mM of 42 and 47, respectively) and IV) 42 -l- 47 (7.0 mM in both 42 and 47) all in CDCI3. c 2D NOESY NMR spectroscopic analysis of a mixture of 42 (7 mM) and 47 (7 mM) in CDCI3. (Reproduced from Bahring, S. Kim, D. S. Duedal, T. Lynch, V. M. Nielsen, K. A. Jeppesen, J. O. Sessler, J. L. Use of solvent to regulate the degree of polymerisation in weakly associated supramolecular oligomers. Reprinted from Chem. Commun. 2014, 50, 5497-5499 [90], with the permission from the Royal Society of Chemistry)...

From a reading of this chapter, which methods do you find are best suited, in terms of accuracy and economy of time, for computation of the following properties of CPs bandgaps band structures band structure evolutions rotational barriers UV-Vis-NIR absorption spectra far-IR absorption and Reflectance spectra Pauli susceptibility optical transition probabilities (intensities). 

In the present study, the second harmonic at 532 nm of a 35 ps mode-locked Nd YAG laser operating at a repetition rate of 10 Hz has been employed. The spatial and the temporal profile of the laser beam were characterized and found to have a Gaussian distribution. For the needs of the measurements several solutions in toluene have been prepared having different concentrations for each fullerene system. The UV-Vis-NIR absorption spectra of the prepared solutions were recorded before and after the measurements to ensure that no photodegradation due to laser irradiation has occurred. 

---