Coordinated halide and pseudo halide‐dependent structures and photoluminescence of defective double cubane Zn(II) clusters - Archive ouverte HAL Access content directly
Journal Articles European Journal of Inorganic Chemistry Year : 2021

Coordinated halide and pseudo halide‐dependent structures and photoluminescence of defective double cubane Zn(II) clusters

(1) , (1) , (2) , (2) , (3) , (1) , (1) , (1)
1
2
3

Abstract

Tetranuclear Zn(II) complexes, [Zn4(L)4(µ3-OCH3)2(X)2] (L = 2-((benzyloxy)carbonyl)-6-methoxyphenolate; X = Cl ⎻ (1), Br ⎻ (2), I ⎻ (3), N3 ⎻ (4), or NCS ⎻ (5)), have provided "defective" double-cubane core [Zn4O6], which were bridged by two µ3-methoxo and four µ2-phenolato oxygens in each discrete complex. In halide complexes 1, 2 and 3, two Zn(II) ions are in slightly distorted octahedral coordinations and the other two in geometries close to the severely distorted trigonal bipyramid, respectively, while all four Zn(II) in pseudo halide complexes 4 and 5 show slightly distorted octahedral geometries. Each complex exhibited blue fluorescence (λmax = 415-428 nm) with high photoluminescence quantum yields (PLQYS, Φem) in the range of 0.22-0.53 at room temperature in the solid state, of which 5 showed the highest Φem among the alkoxo-bridged multinuclear Zn(II) clusters ever reported.
Fichier principal
Vignette du fichier
Thuery_EJIC2021a_V0.pdf (990.94 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

cea-03148306 , version 1 (22-02-2021)

Identifiers

Cite

Toshiaki Kuramitsu, Sotaro Kusumoto, Hitomi Ohmagari, Miki Hasegawa, Pierre Thuéry, et al.. Coordinated halide and pseudo halide‐dependent structures and photoluminescence of defective double cubane Zn(II) clusters. European Journal of Inorganic Chemistry, In press, 2021 (12), pp.1160-1164. ⟨10.1002/ejic.202001138⟩. ⟨cea-03148306⟩
21 View
86 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More