TY - JOUR
T1 - Synthesis, characterization, luminescence and nonlinear optical (NLO) properties of truxene-containing platinum(II) alkynyl complexes
AU - Chan, Carmen Ka Man
AU - Tao, Chi Hang
AU - Li, King Fai
AU - Man-Chung Wong, Keith
AU - ZHU, Nianyong
AU - CHEAH, Kok Wai
AU - Yam, Vivian Wing Wah
N1 - Funding Information:
V.W.-W.Y. acknowledges support from The University of Hong Kong under the Distinguished Research Achievement Award Scheme, and the UGC Strategic Research Theme on Molecular Materials. The work described in this paper has been supported by the University Grants Committee Areas of Excellence Scheme (AoE/P-03/08) and the Special Equipment Grant (SEG_HKU07). C.K.M.C. acknowledges support from The University of Hong Kong and the receipt of a University Postgraduate Studentship. C.-H.T. acknowledges support from The University of Hong Kong and the receipt of a University Postdoctoral Fellowship. Dr. C.C. Ko is gratefully acknowledged for his kind assistance in the crystallographic data collection.
PY - 2011/3/15
Y1 - 2011/3/15
N2 - A series of luminescent trinuclear platinum(II) alkynyl complexes containing dihydro-5H-diindeno[1,2-a;1′,2′-c]fluorene (truxene) as the core and aryl alkynyl ligands with different electronic properties at the periphery has been successfully synthesized and characterized. The electronic absorption, emission, nanosecond transient absorption and electrochemical properties of these complexes have been reported. These complexes showed long-lived emissions in degassed benzene solution at room temperature, and their emissions have been assigned to originate from triplet states of intraligand (IL) character with some mixing of metal-to-ligand charge-transfer (MLCT) character. The luminescent platinum(II) alkynyl complexes are found to show two-photon absorption (2PA) and two-photon induced luminescence (TPIL) properties, and their two-photon absorption cross-sections have been determined to be 6-51 GM upon excitation at 720 nm.
AB - A series of luminescent trinuclear platinum(II) alkynyl complexes containing dihydro-5H-diindeno[1,2-a;1′,2′-c]fluorene (truxene) as the core and aryl alkynyl ligands with different electronic properties at the periphery has been successfully synthesized and characterized. The electronic absorption, emission, nanosecond transient absorption and electrochemical properties of these complexes have been reported. These complexes showed long-lived emissions in degassed benzene solution at room temperature, and their emissions have been assigned to originate from triplet states of intraligand (IL) character with some mixing of metal-to-ligand charge-transfer (MLCT) character. The luminescent platinum(II) alkynyl complexes are found to show two-photon absorption (2PA) and two-photon induced luminescence (TPIL) properties, and their two-photon absorption cross-sections have been determined to be 6-51 GM upon excitation at 720 nm.
KW - Luminescence
KW - Metal alkynyls
KW - Platinum(II) complexes
KW - Transient absorption
KW - Truxene
KW - Two-photon induced luminescence
UR - http://www.scopus.com/inward/record.url?scp=79952362982&partnerID=8YFLogxK
U2 - 10.1016/j.jorganchem.2010.09.044
DO - 10.1016/j.jorganchem.2010.09.044
M3 - Journal article
AN - SCOPUS:79952362982
SN - 0022-328X
VL - 696
SP - 1163
EP - 1173
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 6
ER -