Volume 3, Issue 1, Pages 164-173 (July 2017) Low-Dimensional Carbon Allotropes: Ground- and Excited-State Charge Transfer with NIR-Absorbing Heptamethine Cyanine  Alexandra Roth, Christoph Schierl, Andrés Ferrer-Ruiz, Martin Minameyer, Laura Rodríguez-Pérez, Carmen Villegas, Ma Ángeles Herranz, Nazario Martín, Dirk M. Guldi  Chem  Volume 3, Issue 1, Pages 164-173 (July 2017) DOI: 10.1016/j.chempr.2017.05.003 Copyright © 2017 Elsevier Inc. Terms and Conditions

Chem 2017 3, 164-173DOI: (10.1016/j.chempr.2017.05.003) Copyright © 2017 Elsevier Inc. Terms and Conditions

Figure 1 Absorption Spectra and TEM Images of SWCNT-1, NG-1, and Reference Materials Absorption spectra (left) of 1 (black) and SWCNT-1 (upper) and NG-1 (lower) (gray, light gray, and red) for three enrichment cycles in methanol. TEM images (right) of SWCNT-1 (upper; scale bar, 50 nm) and NG-1 (lower; scale bar, 100 nm) are also shown. Chem 2017 3, 164-173DOI: (10.1016/j.chempr.2017.05.003) Copyright © 2017 Elsevier Inc. Terms and Conditions

Figure 2 Raman Spectra of SWCNT-1 and NG-1 Mean Raman spectra of SWCNTs (black) and SWCNT-1 (red) after 633 nm excitation (left) and of NG (black) and NG-1 (red) after 532 m excitation (right), recorded after they were drop cast onto a Si/SiO2 wafer. Insets: G and 2D modes to illustrate the shifts. Chem 2017 3, 164-173DOI: (10.1016/j.chempr.2017.05.003) Copyright © 2017 Elsevier Inc. Terms and Conditions

Figure 3 Deconvoluted Transient Absorption Spectra of SWCNT-1 and NG-1 Left: deconvoluted transient absorption spectra of SWCNT-1 (upper) and NG-1 (lower) were obtained by target and global analysis. Right: corresponding concentration-time profiles of SWCNT-1 (upper) and NG-1 (lower). Chem 2017 3, 164-173DOI: (10.1016/j.chempr.2017.05.003) Copyright © 2017 Elsevier Inc. Terms and Conditions

Scheme 1 Supramolecular Functionalization of SWCNTs and NG with Heptamethine Cyanine Schematic representation of π-π stacking interactions between 1 and SWCNTs and NG to afford SWCNT-1 and NG-1, respectively. Chem 2017 3, 164-173DOI: (10.1016/j.chempr.2017.05.003) Copyright © 2017 Elsevier Inc. Terms and Conditions