Anomalous Shift in the Fluorescence Spectra of a High-Generation Dendrimer in Nonpolar Solvents

The size and shape of the molecules of the aliphatic hydrocarbon solvent have a strong influence on the magnitude of the anomalous spectral shift in the fluorescence maximum of the charge transfer (CT) state of a high‐generation dendrimer (shown schematically on the right). Its molecules no longer exist in an open extended form but exhibit a compact, globular structure, and the dipole moment of the CT state in pentane is larger than in cyclohexane.