Self-assembly of [M 8L 4] and [M 4L 2] fluorescent metallomacrocycles with carbazole-based dipyrazole ligands

Lin Qin; Liao Yuan Yao; Shu Yan Yu

doi:10.1021/ic202407b

Self-assembly of [M ₈L ₄] and [M ₄L ₂] fluorescent metallomacrocycles with carbazole-based dipyrazole ligands

Lin Qin, Liao Yuan Yao, Shu Yan Yu^*

^*Corresponding author for this work

Renmin University of China

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

Fluorescent carbazole-based dipyrazole ligands (H2L1-4)were employed to coordinate with dipalladium corners ([(phen) ₂Pd ₂(NO ₃) ₂](NO ₃) ₂, [(dmbpy) ₂Pd ₂(NO ₃) ₂](NO ₃) ₂, or [(15-crown-5-phen) ₂Pd ₂(NO ₃) ₂](NO ₃) ₂, where phen = 1,10-phenanthroline and dmbpy = 4,4'-dimethyl-2,2'-bipyridine, in aqueous solution to afford a series of positively charged [M ₈L ₄] ⁸⁺ or [M ₄L ₂] ⁴⁺ multimetallomacrocycles with remarkable water solubility. Their structures were characterized by 1H NMR spectroscopy, electrospray ionization mass spectrometry, and elemental analysis and in the cases of 1·8BF ₄ -([(phen) ₈Pd ₈L _1·4](BF ₄) ₈), and 3·4BF ₄ -([(phen) ₄Pd ₄L _2·2](BF ₄)4)by single-crystal X-ray diffraction analysis. Complexes 3-8 are square-type hybrid metallomacrocycles, while complexes 1 and 2 exhibit folding cyclic structures. Interestingly, in singlecrystal structures of 1·8BF ₄ -and 3·4BF ₄ -, BF ₄ -anions are trapped in the dipalladium clips through anion-π interaction. The luminescence properties and interaction toward anions of these metallomacrocycles were discussed.

Original language	English
Pages (from-to)	2443-2453
Number of pages	11
Journal	Inorganic Chemistry
Volume	51
Issue number	4
DOIs	https://doi.org/10.1021/ic202407b
Publication status	Published - 20 Feb 2012
Externally published	Yes

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@article{013220ca87434d6fb9d181f89d76bfb2,

title = "Self-assembly of [M 8L 4] and [M 4L 2] fluorescent metallomacrocycles with carbazole-based dipyrazole ligands",

abstract = "Fluorescent carbazole-based dipyrazole ligands (H2L1-4)were employed to coordinate with dipalladium corners ([(phen) 2Pd 2(NO 3) 2](NO 3) 2, [(dmbpy) 2Pd 2(NO 3) 2](NO 3) 2, or [(15-crown-5-phen) 2Pd 2(NO 3) 2](NO 3) 2, where phen = 1,10-phenanthroline and dmbpy = 4,4'-dimethyl-2,2'-bipyridine, in aqueous solution to afford a series of positively charged [M 8L 4] 8+ or [M 4L 2] 4+ multimetallomacrocycles with remarkable water solubility. Their structures were characterized by 1H NMR spectroscopy, electrospray ionization mass spectrometry, and elemental analysis and in the cases of 1·8BF 4 -([(phen) 8Pd 8L 1·4](BF 4) 8), and 3·4BF 4 -([(phen) 4Pd 4L 2·2](BF 4)4)by single-crystal X-ray diffraction analysis. Complexes 3-8 are square-type hybrid metallomacrocycles, while complexes 1 and 2 exhibit folding cyclic structures. Interestingly, in singlecrystal structures of 1·8BF 4 -and 3·4BF 4 -, BF 4 -anions are trapped in the dipalladium clips through anion-π interaction. The luminescence properties and interaction toward anions of these metallomacrocycles were discussed.",

author = "Lin Qin and Yao, {Liao Yuan} and Yu, {Shu Yan}",

year = "2012",

month = feb,

day = "20",

doi = "10.1021/ic202407b",

language = "English",

volume = "51",

pages = "2443--2453",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

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T1 - Self-assembly of [M 8L 4] and [M 4L 2] fluorescent metallomacrocycles with carbazole-based dipyrazole ligands

AU - Qin, Lin

AU - Yao, Liao Yuan

AU - Yu, Shu Yan

PY - 2012/2/20

Y1 - 2012/2/20

N2 - Fluorescent carbazole-based dipyrazole ligands (H2L1-4)were employed to coordinate with dipalladium corners ([(phen) 2Pd 2(NO 3) 2](NO 3) 2, [(dmbpy) 2Pd 2(NO 3) 2](NO 3) 2, or [(15-crown-5-phen) 2Pd 2(NO 3) 2](NO 3) 2, where phen = 1,10-phenanthroline and dmbpy = 4,4'-dimethyl-2,2'-bipyridine, in aqueous solution to afford a series of positively charged [M 8L 4] 8+ or [M 4L 2] 4+ multimetallomacrocycles with remarkable water solubility. Their structures were characterized by 1H NMR spectroscopy, electrospray ionization mass spectrometry, and elemental analysis and in the cases of 1·8BF 4 -([(phen) 8Pd 8L 1·4](BF 4) 8), and 3·4BF 4 -([(phen) 4Pd 4L 2·2](BF 4)4)by single-crystal X-ray diffraction analysis. Complexes 3-8 are square-type hybrid metallomacrocycles, while complexes 1 and 2 exhibit folding cyclic structures. Interestingly, in singlecrystal structures of 1·8BF 4 -and 3·4BF 4 -, BF 4 -anions are trapped in the dipalladium clips through anion-π interaction. The luminescence properties and interaction toward anions of these metallomacrocycles were discussed.

AB - Fluorescent carbazole-based dipyrazole ligands (H2L1-4)were employed to coordinate with dipalladium corners ([(phen) 2Pd 2(NO 3) 2](NO 3) 2, [(dmbpy) 2Pd 2(NO 3) 2](NO 3) 2, or [(15-crown-5-phen) 2Pd 2(NO 3) 2](NO 3) 2, where phen = 1,10-phenanthroline and dmbpy = 4,4'-dimethyl-2,2'-bipyridine, in aqueous solution to afford a series of positively charged [M 8L 4] 8+ or [M 4L 2] 4+ multimetallomacrocycles with remarkable water solubility. Their structures were characterized by 1H NMR spectroscopy, electrospray ionization mass spectrometry, and elemental analysis and in the cases of 1·8BF 4 -([(phen) 8Pd 8L 1·4](BF 4) 8), and 3·4BF 4 -([(phen) 4Pd 4L 2·2](BF 4)4)by single-crystal X-ray diffraction analysis. Complexes 3-8 are square-type hybrid metallomacrocycles, while complexes 1 and 2 exhibit folding cyclic structures. Interestingly, in singlecrystal structures of 1·8BF 4 -and 3·4BF 4 -, BF 4 -anions are trapped in the dipalladium clips through anion-π interaction. The luminescence properties and interaction toward anions of these metallomacrocycles were discussed.

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U2 - 10.1021/ic202407b

DO - 10.1021/ic202407b

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JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 4

ER -

Self-assembly of [M ₈L ₄] and [M ₄L ₂] fluorescent metallomacrocycles with carbazole-based dipyrazole ligands

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