Chemical designs of functional photoactive molecular assemblies

Abstract

Molecular assemblies with well-defined structures capable of photo-induced electron transfer and charge transport or photochemical reactions are reviewed. Hierarchical supramolecular architectures, which assemble the modular units into specific spatial arrangements and facilitate them to work cooperatively, are vital for the achievement of photo-functions in these systems. The chemical design of molecular building blocks and noncovalent interactions exploited to realize supramolecular organizations are particularly discussed. Reviewing and recapitulating the chemical evolution traces of these accomplished systems will hopefully delineate certain fundamental design principles and guidelines useful for developing more advanced functions in the future.

Nonconjugated Hydrocarbons as Rigid‐Linear Motifs: Isosteres for Material Sciences and Bioorganic and Medicinal Chemistry

“…During photosynthesis, in order to absorb and transfer solar energy effectively the antenna chlorophylls in photosynthetic bacteria are organized as noncovalent macrorings in a spatially defined manner (Figure ) . Therefore, for electron‐transfer systems, it is crucial to have the correct geometry, conformation and spatial arrangement of the molecular building blocks in these photochemical systems –. In order to achieve this, rigid‐linear isolating linkers (among others) are required to provide defined structures and fixed regiochemical arrangements similar to those seen in nature.…”

Design and photochemical study of supramolecular donor–acceptor systems assembled via metal–ligand axial coordination

“…Since then, a few reviews and monographs have appeared in the literature [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. In addition, nanocarbons beyond fullerenes, viz., carbon nanotubes and endohedral fullerenes, have been also employed [35][36][37][38].…”

Spectroscopic and Theoretical Identification of Two Thermal Isomerization Pathways for Bistable Chiral Overcrowded Alkenes

“…Responsive materials [1][2][3] and dynamic molecular systems [4][5][6][7][8][9][10] that change structure and functions as ar esult of an external input signal are attracting major attention owing to the prospect of smart materials [11][12][13][14][15][16][17] and nanoscale devices. [18][19][20][21][22] Photochemicals witches allow for non-invasive control, reversibility and high spatio-temporal precision.…”