TY - JOUR
T1 - Near-infrared (NIR) luminescent metallopolymers based on Ln 4(Salen)4 nanoclusters (Ln = Nd or Yb)
AU - Feng, Weixu
AU - Zhang, Yao
AU - Zhang, Zhao
AU - Su, Peiyang
AU - Lü, Xingqiang
AU - Song, Jirong
AU - Fan, Daidi
AU - WONG, Rick W K
AU - Jones, Richard A.
AU - Su, Chengyong
N1 - This work is funded by the National Natural Science Foundation (21373160, 912222201, 21173165, 20871098), the Program for New Century Excellent Talents in University from the Ministry of Education of China (NCET-10-0936), the research fund for the Doctoral Program (20116101110003) of Higher Education, the Education Committee Foundation of Shaanxi Province (11JK0588), Graduate Innovation and Creativity Fund (YZZ12038) 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 - 2014/2/28
Y1 - 2014/2/28
N2 - A series of novel Wolf Type II Ln3+-containing metallopolymers PNBE-co-Ln4(Salen)4 (Ln = La, Nd, Yb, Er or Gd) are obtained from the controlled ring-opening metathesis polymerization (ROMP) of norbornene (NBE) and the homoleptic tetranuclear [Ln4(L) 2(HL)2Cl2(μ3-OH) 2]·2Cl (Ln4(Salen)4, Ln = La, 1; Nd, 2; Ln = Yb, 3; Ln = Er, 4; Ln = Gd, 5) self-assembled from the diallyl-modified flexible hexadentate Salen-type Schiff-base ligand H2L (N,N′-bis(5-allyl-3-methoxysalicylidene)cyclohexane-1,2-diamine) with LnCl3·6H2O. The results of their photophysical properties show that the strong and characteristic near-infrared (NIR) luminescent Ln3+-centered emissions for PNBE-co-Ln 4(Salen)4 (Ln = Nd, 2; Yb, 3) are retained with relatively higher intrinsic quantum yields than the corresponding monomers in solution, and the concentration self-quenching of Ln3+-based materials could be effectively prevented in both solution and solid states.
AB - A series of novel Wolf Type II Ln3+-containing metallopolymers PNBE-co-Ln4(Salen)4 (Ln = La, Nd, Yb, Er or Gd) are obtained from the controlled ring-opening metathesis polymerization (ROMP) of norbornene (NBE) and the homoleptic tetranuclear [Ln4(L) 2(HL)2Cl2(μ3-OH) 2]·2Cl (Ln4(Salen)4, Ln = La, 1; Nd, 2; Ln = Yb, 3; Ln = Er, 4; Ln = Gd, 5) self-assembled from the diallyl-modified flexible hexadentate Salen-type Schiff-base ligand H2L (N,N′-bis(5-allyl-3-methoxysalicylidene)cyclohexane-1,2-diamine) with LnCl3·6H2O. The results of their photophysical properties show that the strong and characteristic near-infrared (NIR) luminescent Ln3+-centered emissions for PNBE-co-Ln 4(Salen)4 (Ln = Nd, 2; Yb, 3) are retained with relatively higher intrinsic quantum yields than the corresponding monomers in solution, and the concentration self-quenching of Ln3+-based materials could be effectively prevented in both solution and solid states.
UR - https://www.scopus.com/pages/publications/84893484736
U2 - 10.1039/c3tc31814a
DO - 10.1039/c3tc31814a
M3 - Journal article
AN - SCOPUS:84893484736
SN - 2050-7526
VL - 2
SP - 1489
EP - 1499
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 8
ER -