Five Cu(I) and Zn(II) clusters and coordination polymers of 2-pyridyl-1,2,3-triazoles

Synthesis, structures and luminescence properties

Shi Qiang Bai, Lu Jiang, Bin Sun, David James Young, T. S Andy Hor

Research output: Contribution to journalArticleResearchpeer-review

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Abstract

Three stair-step [Cu4I4] cluster-based complexes [Cu4I4(L1)2] (1), [Cu4I4(L2)]n (2) and [Cu4I4(L3)]n·2n(CH3CN) (3) and two linear Zn(ii) coordination polymers [ZnCl2(L1)]n (4) and [ZnCl2(L3)]n (5) with 2-pyridyl-triazole ligands (L1 = 2-((4-propyl-1H-1,2,3-triazol-1-yl)methyl)pyridine, L2 = 1,3-bis(1-(pyridin-2-ylmethyl)-1H-1,2,3-triazol-4-yl)propane and L3 = 1,4-bis(1-(pyridin-2-ylmethyl)-1H-1,2,3-triazol-4-yl)butane) have been synthesized and characterized by single-crystal X-ray diffraction (XRD), powder XRD, thermogravimetric analysis and photoluminescence spectroscopy. Complex 1 possesses a stair-step [Cu4I4] cluster structure. Complexes 2 and 3 are 1-D polymeric forms of [Cu4I4] clusters. Complexes 4 and 5 are 1-D Zn(ii) polymeric structures bridged by L1 and L3 spacers, respectively. In 1-3, ligands L1-L3 adopt a bidentate/monodentate dual coordination mode through the assistance of the triazole and pyridyl nitrogen donors. Ligand L1 exhibits an unusual open-bridging mode in complex 4, employing Npy and 3′-Ntri donors. By comparison, ligand L3 bridges two metal centers in complex 5 using 3,3′-Ntri donors. The structural (4-pyridyl- and 2-pyridyl-triazole) and H-bonding interaction effects on the coordination structures are described and discussed. All five complexes exhibit solid-state photoluminescence with maximum emission in the region of 440-490 nm.

Original languageEnglish
Pages (from-to)3305-3311
Number of pages7
JournalCrystEngComm
Volume17
Issue number17
DOIs
Publication statusPublished - 7 May 2015
Externally publishedYes

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Triazoles
coordination polymers
Luminescence
Polymers
Ligands
luminescence
Stairs
ligands
polymers
synthesis
photoluminescence
Propane
Photoluminescence spectroscopy
Butane
butanes
diffraction
propane
Pyridine
X ray powder diffraction
spacers

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@article{14c40740ac0346858fa699e84534161b,
title = "Five Cu(I) and Zn(II) clusters and coordination polymers of 2-pyridyl-1,2,3-triazoles: Synthesis, structures and luminescence properties",
abstract = "Three stair-step [Cu4I4] cluster-based complexes [Cu4I4(L1)2] (1), [Cu4I4(L2)]n (2) and [Cu4I4(L3)]n·2n(CH3CN) (3) and two linear Zn(ii) coordination polymers [ZnCl2(L1)]n (4) and [ZnCl2(L3)]n (5) with 2-pyridyl-triazole ligands (L1 = 2-((4-propyl-1H-1,2,3-triazol-1-yl)methyl)pyridine, L2 = 1,3-bis(1-(pyridin-2-ylmethyl)-1H-1,2,3-triazol-4-yl)propane and L3 = 1,4-bis(1-(pyridin-2-ylmethyl)-1H-1,2,3-triazol-4-yl)butane) have been synthesized and characterized by single-crystal X-ray diffraction (XRD), powder XRD, thermogravimetric analysis and photoluminescence spectroscopy. Complex 1 possesses a stair-step [Cu4I4] cluster structure. Complexes 2 and 3 are 1-D polymeric forms of [Cu4I4] clusters. Complexes 4 and 5 are 1-D Zn(ii) polymeric structures bridged by L1 and L3 spacers, respectively. In 1-3, ligands L1-L3 adopt a bidentate/monodentate dual coordination mode through the assistance of the triazole and pyridyl nitrogen donors. Ligand L1 exhibits an unusual open-bridging mode in complex 4, employing Npy and 3′-Ntri donors. By comparison, ligand L3 bridges two metal centers in complex 5 using 3,3′-Ntri donors. The structural (4-pyridyl- and 2-pyridyl-triazole) and H-bonding interaction effects on the coordination structures are described and discussed. All five complexes exhibit solid-state photoluminescence with maximum emission in the region of 440-490 nm.",
author = "Bai, {Shi Qiang} and Lu Jiang and Bin Sun and Young, {David James} and Hor, {T. S Andy}",
year = "2015",
month = "5",
day = "7",
doi = "10.1039/c4ce02282c",
language = "English",
volume = "17",
pages = "3305--3311",
journal = "CrystEngComm",
issn = "1466-8033",
publisher = "Royal Society of Chemistry (RSC)",
number = "17",

}

Five Cu(I) and Zn(II) clusters and coordination polymers of 2-pyridyl-1,2,3-triazoles : Synthesis, structures and luminescence properties. / Bai, Shi Qiang; Jiang, Lu; Sun, Bin; Young, David James; Hor, T. S Andy.

In: CrystEngComm, Vol. 17, No. 17, 07.05.2015, p. 3305-3311.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Five Cu(I) and Zn(II) clusters and coordination polymers of 2-pyridyl-1,2,3-triazoles

T2 - Synthesis, structures and luminescence properties

AU - Bai, Shi Qiang

AU - Jiang, Lu

AU - Sun, Bin

AU - Young, David James

AU - Hor, T. S Andy

PY - 2015/5/7

Y1 - 2015/5/7

N2 - Three stair-step [Cu4I4] cluster-based complexes [Cu4I4(L1)2] (1), [Cu4I4(L2)]n (2) and [Cu4I4(L3)]n·2n(CH3CN) (3) and two linear Zn(ii) coordination polymers [ZnCl2(L1)]n (4) and [ZnCl2(L3)]n (5) with 2-pyridyl-triazole ligands (L1 = 2-((4-propyl-1H-1,2,3-triazol-1-yl)methyl)pyridine, L2 = 1,3-bis(1-(pyridin-2-ylmethyl)-1H-1,2,3-triazol-4-yl)propane and L3 = 1,4-bis(1-(pyridin-2-ylmethyl)-1H-1,2,3-triazol-4-yl)butane) have been synthesized and characterized by single-crystal X-ray diffraction (XRD), powder XRD, thermogravimetric analysis and photoluminescence spectroscopy. Complex 1 possesses a stair-step [Cu4I4] cluster structure. Complexes 2 and 3 are 1-D polymeric forms of [Cu4I4] clusters. Complexes 4 and 5 are 1-D Zn(ii) polymeric structures bridged by L1 and L3 spacers, respectively. In 1-3, ligands L1-L3 adopt a bidentate/monodentate dual coordination mode through the assistance of the triazole and pyridyl nitrogen donors. Ligand L1 exhibits an unusual open-bridging mode in complex 4, employing Npy and 3′-Ntri donors. By comparison, ligand L3 bridges two metal centers in complex 5 using 3,3′-Ntri donors. The structural (4-pyridyl- and 2-pyridyl-triazole) and H-bonding interaction effects on the coordination structures are described and discussed. All five complexes exhibit solid-state photoluminescence with maximum emission in the region of 440-490 nm.

AB - Three stair-step [Cu4I4] cluster-based complexes [Cu4I4(L1)2] (1), [Cu4I4(L2)]n (2) and [Cu4I4(L3)]n·2n(CH3CN) (3) and two linear Zn(ii) coordination polymers [ZnCl2(L1)]n (4) and [ZnCl2(L3)]n (5) with 2-pyridyl-triazole ligands (L1 = 2-((4-propyl-1H-1,2,3-triazol-1-yl)methyl)pyridine, L2 = 1,3-bis(1-(pyridin-2-ylmethyl)-1H-1,2,3-triazol-4-yl)propane and L3 = 1,4-bis(1-(pyridin-2-ylmethyl)-1H-1,2,3-triazol-4-yl)butane) have been synthesized and characterized by single-crystal X-ray diffraction (XRD), powder XRD, thermogravimetric analysis and photoluminescence spectroscopy. Complex 1 possesses a stair-step [Cu4I4] cluster structure. Complexes 2 and 3 are 1-D polymeric forms of [Cu4I4] clusters. Complexes 4 and 5 are 1-D Zn(ii) polymeric structures bridged by L1 and L3 spacers, respectively. In 1-3, ligands L1-L3 adopt a bidentate/monodentate dual coordination mode through the assistance of the triazole and pyridyl nitrogen donors. Ligand L1 exhibits an unusual open-bridging mode in complex 4, employing Npy and 3′-Ntri donors. By comparison, ligand L3 bridges two metal centers in complex 5 using 3,3′-Ntri donors. The structural (4-pyridyl- and 2-pyridyl-triazole) and H-bonding interaction effects on the coordination structures are described and discussed. All five complexes exhibit solid-state photoluminescence with maximum emission in the region of 440-490 nm.

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U2 - 10.1039/c4ce02282c

DO - 10.1039/c4ce02282c

M3 - Article

VL - 17

SP - 3305

EP - 3311

JO - CrystEngComm

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SN - 1466-8033

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