TY - JOUR
T1 - Metallated molecular materials of fluorene derivatives and their analogues
AU - WONG, Wai Yeung
N1 - Funding Information:
The author gratefully acknowledges financial support from the Research Grants Council of the Hong Kong SAR, PR China (Project Nos. HKBU 2048/01P and 2022/03P) and the Hong Kong Baptist University (FRG/01-02/II-48).
PY - 2005/5
Y1 - 2005/5
N2 - This review covers recent developments in the molecular design and synthesis of metal-based functional materials of fluorenes and their derivatives. Conjugated organic compounds containing metal centers constitute an important class of molecular materials nowadays because of the combined good features of the chemical, electrochemical, electronic and optical properties of the metal groups to those of the organic chromophores. Recently, substituted fluorene derivatives have been extensively explored in the field of optoelectronics and molecular electronics. They are synthetically easily accessible and possess high thermal and chemical stability as well as high emission quantum yields. Such rapidly emerging chemistry of organic-based fluorene derivatives leads us to believe that a related chemistry involving metal centers should present a fascinating subclass and pose potential for the development of new types of novel materials. While there is great scope for chemical modifications of the metal units and structure of the fluorene ring and its substituents in a systematic fashion, these classes of metal-organics can exhibit rich photophysical, redox and structural properties. An understanding of the structure-property relationships of these molecules allows us to establish good model systems in the development of optoelectronic devices, molecular electronics and chemical sensing applications. In this article, homo- and heterometallic systems containing fluorene chromophores and their structural analogues such as carbazoles and diazafluorenes are discussed, and particular attention is paid to chemical reactivities, electronic absorption spectroscopy, photoluminescence and redox behavior, and structural aspects of these metal-organic compounds. The applications that these materials have found in various domains are also highlighted.
AB - This review covers recent developments in the molecular design and synthesis of metal-based functional materials of fluorenes and their derivatives. Conjugated organic compounds containing metal centers constitute an important class of molecular materials nowadays because of the combined good features of the chemical, electrochemical, electronic and optical properties of the metal groups to those of the organic chromophores. Recently, substituted fluorene derivatives have been extensively explored in the field of optoelectronics and molecular electronics. They are synthetically easily accessible and possess high thermal and chemical stability as well as high emission quantum yields. Such rapidly emerging chemistry of organic-based fluorene derivatives leads us to believe that a related chemistry involving metal centers should present a fascinating subclass and pose potential for the development of new types of novel materials. While there is great scope for chemical modifications of the metal units and structure of the fluorene ring and its substituents in a systematic fashion, these classes of metal-organics can exhibit rich photophysical, redox and structural properties. An understanding of the structure-property relationships of these molecules allows us to establish good model systems in the development of optoelectronic devices, molecular electronics and chemical sensing applications. In this article, homo- and heterometallic systems containing fluorene chromophores and their structural analogues such as carbazoles and diazafluorenes are discussed, and particular attention is paid to chemical reactivities, electronic absorption spectroscopy, photoluminescence and redox behavior, and structural aspects of these metal-organic compounds. The applications that these materials have found in various domains are also highlighted.
KW - Carbazoles
KW - Conjugated molecules
KW - Diazafluorenes
KW - Fluorenes
KW - Metal complexes
UR - http://www.scopus.com/inward/record.url?scp=16344378608&partnerID=8YFLogxK
U2 - 10.1016/j.ccr.2004.10.007
DO - 10.1016/j.ccr.2004.10.007
M3 - Review article
AN - SCOPUS:16344378608
SN - 0010-8545
VL - 249
SP - 971
EP - 997
JO - Coordination Chemistry Reviews
JF - Coordination Chemistry Reviews
IS - 9-10
ER -