inorganic chemistry

PHOTOPHYSICS OF SOFT AND HARD MOLECULAR

ASSEMBLIES BASED ON LUMINESCENT

COMPLEXES

CRISTIAN A. STRASSERTa,b, MATTEO MAUROa,band

LUISA DE COLAa,b

aPhysikalisches Institut, Westfälische Wilhems Universität Münster, Mendelstrasse 7,

Münster, Germany

bCenter for Nanotechnology, CeNTech, Heisenbergstrasse 11, Münster, Germany

I. Introduction 48
II. Basic Photophysics of Selected Transition Metal Complexes 50
III. Molecular Systems Based on Aggregates of d^6 Metal Complexes 54
A. Photoresponsive Assemblies Based on Noncovalent Interactions 54
B. Micelles and Vesicles 59
C. Double Complex Salts 67
D. Aggregation-Induced Emission Enhancement in Crystals 71
IV. Molecular Systems Based on Aggregates of d^8 Metal Complexes 73
A. 1D Arrays 74
B. 2D Arrays 77
C. 3D Networks 81
D. Crystalline Assemblies 90
V. Conclusions and Open Questions 93
References 94

ABSTRACT

In this chapter, we discuss several approaches that have led
from molecular entities to supramolecular soft and hard molecu-
lar architectures. Systems based on metal complexes with d^6 and
d^8 electronic configuration forming assemblies such as micelles,
vesicles, and gels, as well as crystalline structures, will be
illustrated. The focus is on the role played by the metal complexes
chemical structures as well as the choice of the intermolecular
interactions in the ground and/or excited electronic states within
the arrays. The selected examples, based on noncovalently linked
luminescent systems, aim to the development of multifunctional
assemblies, in which the self-organization generates new

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INORGANIC PHOTOCHEMISTRY #2011 Elsevier Inc.
VOLUME 63 ISSN 0898-8838 / DOI: 10.1016/B978-0-12-385904-4.00009-3 All rights reserved