Synthesis, characterization and properties of two novel complexes based on 2-aminopyridine and polyoxometalates

Yun Gong; Yang Guang Li; Hui Li; Yong Hui Wang; Chang Wen Hu

doi:10.1002/cjoc.200690216

Synthesis, characterization and properties of two novel complexes based on 2-aminopyridine and polyoxometalates

Yun Gong^*, Yang Guang Li, Hui Li, Yong Hui Wang, Chang Wen Hu

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

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

6 Citations (Scopus)

Abstract

Two novel complexes based on 2-aminopyridine and polyoxometalates (POMs) formulated as (C₅H₇N₂)₆-[PMo ₁₁^VMo^VIO₄₀ (V^IVO) ₄]·H₂O (1) and (C₅H₇N ₂)₁₆[P₂W₁₈O_61.5] ₂ (2) were hydrothermally synthesized and structurally characterized by elemental analysis, ICP, IR, UV-Vis, TG, ESR and single crystal X-ray diffraction methods. Complex 1 consists of a novel terra-capped Keggin POMs, [PMo₁₁^VMo^VIO₄₀(V^IVO) ₄]^6-, in which four [V^IVO₅] square pyramids cap the equatorial positions of Keggin core [PMo₁₁ ^VMo^VIO₄₀]^14-, linked together with six protonated 2-aminopyridine via hydrogen bonding interactions. Dawson and lacunary Dawson POMs, [P₂W₁₈O₆₂]^6- and [P₂W₁₇O₆₁]^10- coexist in complex 2, they link together with sixteen protonated 2-aminopyridine via hydrogen bonding interactions. Complex 2 exhibits photochromic property.

Original language	English
Pages (from-to)	1148-1153
Number of pages	6
Journal	Chinese Journal of Chemistry
Volume	24
Issue number	9
DOIs	https://doi.org/10.1002/cjoc.200690216
Publication status	Published - Sept 2006

Keywords

Dawson
Lanuary Dawson
Photochromism
Polyoxometalate
Tetra-capped Keggin

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title = "Synthesis, characterization and properties of two novel complexes based on 2-aminopyridine and polyoxometalates",

abstract = "Two novel complexes based on 2-aminopyridine and polyoxometalates (POMs) formulated as (C5H7N2)6-[PMo 11VMoVIO40 (VIVO) 4]·H2O (1) and (C5H7N 2)16[P2W18O61.5] 2 (2) were hydrothermally synthesized and structurally characterized by elemental analysis, ICP, IR, UV-Vis, TG, ESR and single crystal X-ray diffraction methods. Complex 1 consists of a novel terra-capped Keggin POMs, [PMo11VMoVIO40(VIVO) 4]6-, in which four [VIVO5] square pyramids cap the equatorial positions of Keggin core [PMo11 VMoVIO40]14-, linked together with six protonated 2-aminopyridine via hydrogen bonding interactions. Dawson and lacunary Dawson POMs, [P2W18O62]6- and [P2W17O61]10- coexist in complex 2, they link together with sixteen protonated 2-aminopyridine via hydrogen bonding interactions. Complex 2 exhibits photochromic property.",

keywords = "Dawson, Lanuary Dawson, Photochromism, Polyoxometalate, Tetra-capped Keggin",

author = "Yun Gong and Li, {Yang Guang} and Hui Li and Wang, {Yong Hui} and Hu, {Chang Wen}",

year = "2006",

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doi = "10.1002/cjoc.200690216",

language = "English",

volume = "24",

pages = "1148--1153",

journal = "Chinese Journal of Chemistry",

issn = "1001-604X",

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AU - Gong, Yun

AU - Li, Yang Guang

AU - Li, Hui

AU - Wang, Yong Hui

AU - Hu, Chang Wen

PY - 2006/9

Y1 - 2006/9

N2 - Two novel complexes based on 2-aminopyridine and polyoxometalates (POMs) formulated as (C5H7N2)6-[PMo 11VMoVIO40 (VIVO) 4]·H2O (1) and (C5H7N 2)16[P2W18O61.5] 2 (2) were hydrothermally synthesized and structurally characterized by elemental analysis, ICP, IR, UV-Vis, TG, ESR and single crystal X-ray diffraction methods. Complex 1 consists of a novel terra-capped Keggin POMs, [PMo11VMoVIO40(VIVO) 4]6-, in which four [VIVO5] square pyramids cap the equatorial positions of Keggin core [PMo11 VMoVIO40]14-, linked together with six protonated 2-aminopyridine via hydrogen bonding interactions. Dawson and lacunary Dawson POMs, [P2W18O62]6- and [P2W17O61]10- coexist in complex 2, they link together with sixteen protonated 2-aminopyridine via hydrogen bonding interactions. Complex 2 exhibits photochromic property.

AB - Two novel complexes based on 2-aminopyridine and polyoxometalates (POMs) formulated as (C5H7N2)6-[PMo 11VMoVIO40 (VIVO) 4]·H2O (1) and (C5H7N 2)16[P2W18O61.5] 2 (2) were hydrothermally synthesized and structurally characterized by elemental analysis, ICP, IR, UV-Vis, TG, ESR and single crystal X-ray diffraction methods. Complex 1 consists of a novel terra-capped Keggin POMs, [PMo11VMoVIO40(VIVO) 4]6-, in which four [VIVO5] square pyramids cap the equatorial positions of Keggin core [PMo11 VMoVIO40]14-, linked together with six protonated 2-aminopyridine via hydrogen bonding interactions. Dawson and lacunary Dawson POMs, [P2W18O62]6- and [P2W17O61]10- coexist in complex 2, they link together with sixteen protonated 2-aminopyridine via hydrogen bonding interactions. Complex 2 exhibits photochromic property.

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KW - Lanuary Dawson

KW - Photochromism

KW - Polyoxometalate

KW - Tetra-capped Keggin

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Synthesis, characterization and properties of two novel complexes based on 2-aminopyridine and polyoxometalates

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Keywords

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