TY - JOUR
T1 - Adjustment of coordination environment of Ln3+ ions to modulate near-infrared luminescent properties of Ln3+ complexes
AU - Hui, Yani
AU - Feng, Weixu
AU - Wei, Tao
AU - Lü, Xingqiang
AU - Song, Jirong
AU - Zhao, Shunsheng
AU - WONG, Rick W K
AU - Jones, Richard A.
N1 - Funding Information:
This work is funded by the National Natural Science Foundation ( 20871098 ), the State Key Laboratory of Structural Chemistry ( 20100014 ), the Provincial Key Item of Shaanxi and Graduate Cross-discipline Funds ( 09YJC23 ) of Northwest University, Hong Kong. Research Grants Council ( HKBU 202407 and FRG/06-07/II-16 ) in P. R. of China, the Robert A. Welch Foundation (Grant F-816), the Texas Higher Education Coordinating Board ( ARP 003658-0010-2006 ) and the Petroleum Research Fund , administered by the American Chemical Society ( 47014-AC5 ).
PY - 2011/1
Y1 - 2011/1
N2 - With the Zn-Schiff-base [ZnL(Py)] from the pure Salen-type Schiff-base ligand H2L (H2L = N,N′-bis(salicylidene)ethylene-1, 2-diamine) as the precursor, a series of hetero-trinuclear Zn2Ln complexes [Zn2Ln(L)2(NO3)2(SCN)(Py) 2] (Ln = Nd, 1; Ln = Yb, 2; Ln = Er, 3 and Ln = Gd, 4) are obtained by the further reaction with Ln(NO3)3•6H2O and KSCN on the condition of stoichiometry control, respectively. The influence of molecular structures on the photophysical properties shows their NIR luminescent properties are hypersensitive to the composition and symmetry of the coordination environments of Ln3+ ions bonded with the mixed anions, which provides a wide variety of means to modulate the NIR luminescence of Ln3+ complexes.
AB - With the Zn-Schiff-base [ZnL(Py)] from the pure Salen-type Schiff-base ligand H2L (H2L = N,N′-bis(salicylidene)ethylene-1, 2-diamine) as the precursor, a series of hetero-trinuclear Zn2Ln complexes [Zn2Ln(L)2(NO3)2(SCN)(Py) 2] (Ln = Nd, 1; Ln = Yb, 2; Ln = Er, 3 and Ln = Gd, 4) are obtained by the further reaction with Ln(NO3)3•6H2O and KSCN on the condition of stoichiometry control, respectively. The influence of molecular structures on the photophysical properties shows their NIR luminescent properties are hypersensitive to the composition and symmetry of the coordination environments of Ln3+ ions bonded with the mixed anions, which provides a wide variety of means to modulate the NIR luminescence of Ln3+ complexes.
KW - Adjustment of coordination environment
KW - Modulation of NIR luminescence
KW - Sensitization and energy transfer
KW - ZnLn arrayed Schiff-base complexes
UR - http://www.scopus.com/inward/record.url?scp=78651272484&partnerID=8YFLogxK
U2 - 10.1016/j.inoche.2010.10.022
DO - 10.1016/j.inoche.2010.10.022
M3 - Journal article
AN - SCOPUS:78651272484
SN - 1387-7003
VL - 14
SP - 200
EP - 204
JO - Inorganic Chemistry Communications
JF - Inorganic Chemistry Communications
IS - 1
ER -