Photophysics and Photochemistry of Molecular Recognition and Sensing with Metal-Directed Macrocyclic Systems - Molecular Self-Assembly: Advances and Applications - page 301

Chapter 10

Photophysics and Photochemistry of
Molecular Recognition and Sensing with
Metal-Directed Macrocyclic Systems

Arvind Kumar a and Shih-Sheng Sun b
a

Department of Chemistry, The University of The West Indies, St. Augustine,
Trinidad and Tobago, West Indies
b

Institute of Chemistry, Academia Sinica, 128 Academia Road, Section 2, Nankang,
Taipei 115, Taiwan, ROC
[e-mail], [e-mail]

Metal-directed macrocyclic assembly has been a remarkable research
area in the realm of supramolecular chemistry. Over the past few
decades, metal-directed self-assembly has proven to be a powerful
tool in the synthesis of well-defined multimetallic architectures
with increasing structural complexity based on metal

−

ligand

−

interactions. The transition metal containing macrocycles are

generally designed to be sensitive and responsive upon electro- and/
or photochemical stimuli. With the further introduction of various
functional moieties on the tectons, the backbone can be modified
as electron deficient or electron rich, and their interior as well as
their exterior can be functionalized independently. This allows them