TY - JOUR
T1 - First examples of near-infrared luminescent poly(methyl methacrylate)-supported metallopolymers based on Zn2Ln-arrayed schiff base complexes
AU - Miao, Tie Zheng
AU - Feng, Wei Xu
AU - Zhang, Zhao
AU - Su, Pei Yang
AU - Lü, Xing Qiang
AU - Song, Ji Rong
AU - Fan, Dai Di
AU - WONG, Rick W K
AU - Jones, Richard A.
AU - Su, Cheng Yong
PY - 2014
Y1 - 2014
N2 - The first examples of Wolf Type II Zn2Ln-containing metallopolymers poly{MMA-co-[Zn2(L)2(4-vp) 2Ln(NO3)3]} (Ln = La, Nd, Yb, Er, Gd; H 2L = N,N′-bis(salicylidene)ethylene-1,2-diamine; 4-vp = 4-vinylpyridine; MMA = methyl methacrylate) are obtained from the controlled copolymerization of heterotrinuclear Zn2Ln-arrayed complexes [Zn 2(L)2(4-vp)2Ln(NO3)3] (Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4; Ln = Gd, 5) with MMA. The strong and characteristic near-infrared (NIR) luminescent Ln3+-centered emission for each of the PMMA-supported poly{MMA-co-[Zn2(L) 2(4-vp)2Ln(NO3)3]} (Ln = Nd, Yb, Er) hybrid materials is retained with somewhat higher intrinsic quantum yields than those of the respective Zn2Ln-arrayed complex. Especially for poly(MMA-co-3), which has more efficient sensitization from both ligand-centered singlet (1LC) and triplet (3LC) states of the chromophores, the concentration self-quenching of Yb3+-based NIR luminescence could be effectively prevented. The first examples of Wolf Type II near-infrared-luminescent Zn2Ln-containing metallopolymers poly{MMA-co-[Zn2(L)2(4-vp)2Ln(NO 3)3]} (H2L = N,N′-bis(salicylidene) ethylene-1,2-diamine; Ln = La, Nd, Yb, Er, Gd; MMA = methyl methacrylate; 4-vp = 4-vinylpridine) are obtained from the controlled copolymerization of MMA with a series of Zn2Ln-arrayed Schiff base complexes [Zn 2(L)2(4-vp)2Ln(NO3)3].
AB - The first examples of Wolf Type II Zn2Ln-containing metallopolymers poly{MMA-co-[Zn2(L)2(4-vp) 2Ln(NO3)3]} (Ln = La, Nd, Yb, Er, Gd; H 2L = N,N′-bis(salicylidene)ethylene-1,2-diamine; 4-vp = 4-vinylpyridine; MMA = methyl methacrylate) are obtained from the controlled copolymerization of heterotrinuclear Zn2Ln-arrayed complexes [Zn 2(L)2(4-vp)2Ln(NO3)3] (Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4; Ln = Gd, 5) with MMA. The strong and characteristic near-infrared (NIR) luminescent Ln3+-centered emission for each of the PMMA-supported poly{MMA-co-[Zn2(L) 2(4-vp)2Ln(NO3)3]} (Ln = Nd, Yb, Er) hybrid materials is retained with somewhat higher intrinsic quantum yields than those of the respective Zn2Ln-arrayed complex. Especially for poly(MMA-co-3), which has more efficient sensitization from both ligand-centered singlet (1LC) and triplet (3LC) states of the chromophores, the concentration self-quenching of Yb3+-based NIR luminescence could be effectively prevented. The first examples of Wolf Type II near-infrared-luminescent Zn2Ln-containing metallopolymers poly{MMA-co-[Zn2(L)2(4-vp)2Ln(NO 3)3]} (H2L = N,N′-bis(salicylidene) ethylene-1,2-diamine; Ln = La, Nd, Yb, Er, Gd; MMA = methyl methacrylate; 4-vp = 4-vinylpridine) are obtained from the controlled copolymerization of MMA with a series of Zn2Ln-arrayed Schiff base complexes [Zn 2(L)2(4-vp)2Ln(NO3)3].
KW - Copolymerization
KW - Lanthanides
KW - Luminescence
KW - Metallopolymers
KW - Schiff bases
UR - http://www.scopus.com/inward/record.url?scp=84902352555&partnerID=8YFLogxK
U2 - 10.1002/ejic.201402015
DO - 10.1002/ejic.201402015
M3 - Journal article
AN - SCOPUS:84902352555
SN - 1434-1948
SP - 2839
EP - 2848
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
IS - 17
ER -
