Mixed anion-induced Salen-based Zn2Ln3 (Ln = Nd, Yb or Er) complexes with near-infrared (NIR) luminescent properties

Heini Feng; Zhao Zhang; Weixu Feng; Peiyang Su; Xingqiang Lü; Daidi Fan; Rick W K WONG; Richard A. Jones; Chengyong Su

doi:10.1016/j.inoche.2014.02.034

Mixed anion-induced Salen-based Zn₂Ln₃ (Ln = Nd, Yb or Er) complexes with near-infrared (NIR) luminescent properties

Heini Feng, Zhao Zhang, Weixu Feng, Peiyang Su, Xingqiang Lü^*, Daidi Fan, Rick W K WONG, Richard A. Jones, Chengyong Su

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

3 Citations (Scopus)

Abstract

A series of mixed anion-induced Zn₂Ln₃ complexes [Zn₂(L)₃Cl₂(μ₂-OH) (μ₃-OH)₂Ln₃(N₃)₂] (Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4 or Ln = Gd, 5) have been obtained by the self-assembly of the precursor [Zn(L)(MeCN)] (H₂L = N,N′-bis(3-methoxy-salicylidene)cyclohexane-1,2-diamine) with LnCl ₃·6H₂O (Ln = La, Nd, Yb, Er or Gd) and NaN ₃ in alcohol-containing solutions. In these reactions, transmetallation of the partial precursor leads to the coexistence of two Zn^{2 +} ions and one Ln^{3 +} ion in the inner cis-N ₂O₂ core and the other two Ln^{3 +} ions in the outer O₂O₂ moieties of three deprotonated ligands. Photophysical studies suggest that the characteristic near-infrared (NIR) luminescence of Nd^{3 +} and Yb^{3 +} ions is sensitized through both the excited singlet ¹LC and triplet ³LC states of the depronated ligand (L)^{2 -}, despite the luminescent quenching with three OH^- oscillators arround the Ln^{3 +} ions.

Original language	English
Pages (from-to)	151-154
Number of pages	4
Journal	Inorganic Chemistry Communications
Volume	43
DOIs	https://doi.org/10.1016/j.inoche.2014.02.034
Publication status	Published - May 2014

Scopus Subject Areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

User-Defined Keywords

Mixed anions
Sensitization of NIR luminescence
Transmetallation

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10.1016/j.inoche.2014.02.034

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@article{39250b7bd0364b4ea9d23cc50cbfb380,

title = "Mixed anion-induced Salen-based Zn2Ln3 (Ln = Nd, Yb or Er) complexes with near-infrared (NIR) luminescent properties",

abstract = "A series of mixed anion-induced Zn2Ln3 complexes [Zn2(L)3Cl2(μ2-OH) (μ3-OH)2Ln3(N3)2] (Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4 or Ln = Gd, 5) have been obtained by the self-assembly of the precursor [Zn(L)(MeCN)] (H2L = N,N′-bis(3-methoxy-salicylidene)cyclohexane-1,2-diamine) with LnCl 3·6H2O (Ln = La, Nd, Yb, Er or Gd) and NaN 3 in alcohol-containing solutions. In these reactions, transmetallation of the partial precursor leads to the coexistence of two Zn2 + ions and one Ln3 + ion in the inner cis-N 2O2 core and the other two Ln3 + ions in the outer O2O2 moieties of three deprotonated ligands. Photophysical studies suggest that the characteristic near-infrared (NIR) luminescence of Nd3 + and Yb3 + ions is sensitized through both the excited singlet 1LC and triplet 3LC states of the depronated ligand (L)2 -, despite the luminescent quenching with three OH- oscillators arround the Ln3 + ions.",

keywords = "Mixed anions, Sensitization of NIR luminescence, Transmetallation",

author = "Heini Feng and Zhao Zhang and Weixu Feng and Peiyang Su and Xingqiang L{\"u} and Daidi Fan and WONG, {Rick W K} and Jones, {Richard A.} and Chengyong Su",

note = "Funding Information: This work is funded by the National Natural Science Foundation of China ( 21373160 , 91222201 , 21173165 , 20871098 ), the Program for New Century Excellent Talents in University from the Ministry of Science and Technology of the People's Republic of China ( NCET-10-0936 ), the research fund for the Doctoral Program ( 20116101110003 ) of Ministry of Higher Education , the Education Committee Foundation ( 11JK0588 ), the Ministry of Science, Technology and Innovation Project ( 2012KTCQ01-37 ) of Shaanxi Province, Graduate Innovation and Creativity Fund ( YZZ12038 ) of Northwest University, Research Grants Council, University Grants Committee, Hong Kong ( HKBU 202407 and FRG/06-07/II-16 ) in P.R. of China, the 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 ). ",

year = "2014",

month = may,

doi = "10.1016/j.inoche.2014.02.034",

language = "English",

volume = "43",

pages = "151--154",

journal = "Inorganic Chemistry Communications",

issn = "1387-7003",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Mixed anion-induced Salen-based Zn2Ln3 (Ln = Nd, Yb or Er) complexes with near-infrared (NIR) luminescent properties

AU - Feng, Heini

AU - Zhang, Zhao

AU - Feng, Weixu

AU - Su, Peiyang

AU - Lü, Xingqiang

AU - Fan, Daidi

AU - WONG, Rick W K

AU - Jones, Richard A.

AU - Su, Chengyong

N1 - Funding Information: This work is funded by the National Natural Science Foundation of China ( 21373160 , 91222201 , 21173165 , 20871098 ), the Program for New Century Excellent Talents in University from the Ministry of Science and Technology of the People's Republic of China ( NCET-10-0936 ), the research fund for the Doctoral Program ( 20116101110003 ) of Ministry of Higher Education , the Education Committee Foundation ( 11JK0588 ), the Ministry of Science, Technology and Innovation Project ( 2012KTCQ01-37 ) of Shaanxi Province, Graduate Innovation and Creativity Fund ( YZZ12038 ) of Northwest University, Research Grants Council, University Grants Committee, Hong Kong ( HKBU 202407 and FRG/06-07/II-16 ) in P.R. of China, the 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 - 2014/5

Y1 - 2014/5

N2 - A series of mixed anion-induced Zn2Ln3 complexes [Zn2(L)3Cl2(μ2-OH) (μ3-OH)2Ln3(N3)2] (Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4 or Ln = Gd, 5) have been obtained by the self-assembly of the precursor [Zn(L)(MeCN)] (H2L = N,N′-bis(3-methoxy-salicylidene)cyclohexane-1,2-diamine) with LnCl 3·6H2O (Ln = La, Nd, Yb, Er or Gd) and NaN 3 in alcohol-containing solutions. In these reactions, transmetallation of the partial precursor leads to the coexistence of two Zn2 + ions and one Ln3 + ion in the inner cis-N 2O2 core and the other two Ln3 + ions in the outer O2O2 moieties of three deprotonated ligands. Photophysical studies suggest that the characteristic near-infrared (NIR) luminescence of Nd3 + and Yb3 + ions is sensitized through both the excited singlet 1LC and triplet 3LC states of the depronated ligand (L)2 -, despite the luminescent quenching with three OH- oscillators arround the Ln3 + ions.

AB - A series of mixed anion-induced Zn2Ln3 complexes [Zn2(L)3Cl2(μ2-OH) (μ3-OH)2Ln3(N3)2] (Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4 or Ln = Gd, 5) have been obtained by the self-assembly of the precursor [Zn(L)(MeCN)] (H2L = N,N′-bis(3-methoxy-salicylidene)cyclohexane-1,2-diamine) with LnCl 3·6H2O (Ln = La, Nd, Yb, Er or Gd) and NaN 3 in alcohol-containing solutions. In these reactions, transmetallation of the partial precursor leads to the coexistence of two Zn2 + ions and one Ln3 + ion in the inner cis-N 2O2 core and the other two Ln3 + ions in the outer O2O2 moieties of three deprotonated ligands. Photophysical studies suggest that the characteristic near-infrared (NIR) luminescence of Nd3 + and Yb3 + ions is sensitized through both the excited singlet 1LC and triplet 3LC states of the depronated ligand (L)2 -, despite the luminescent quenching with three OH- oscillators arround the Ln3 + ions.

KW - Mixed anions

KW - Sensitization of NIR luminescence

KW - Transmetallation

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U2 - 10.1016/j.inoche.2014.02.034

DO - 10.1016/j.inoche.2014.02.034

M3 - Journal article

AN - SCOPUS:84896364871

SN - 1387-7003

VL - 43

SP - 151

EP - 154

JO - Inorganic Chemistry Communications

JF - Inorganic Chemistry Communications

ER -