A new 4-Ti-added polyoxometalate

Hai Lou Li; Chen Lian; Guo Yu Yang

doi:10.1007/s42864-023-00221-5

A new 4-Ti-added polyoxometalate

Hai Lou Li, Chen Lian, Guo Yu Yang^*

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

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

4 Citations (Scopus)

Abstract

A new inorganic–organic hybrid 4-Ti-added polyoxometalate: [H₂N(CH₃)₂]₂Na₃H₅[{Ti(C₂O₄)(H₂O)}₂{Ti(C₂O₄)}₂(B-β-SbW₉O₃₃)₂]·22H₂O (1) has been successfully made and further characterized by infrared spectroscopy, thermogravimetric analysis, powder X-ray diffraction and single-crystal X-ray diffraction. The polyoxoanion of 1 exhibits a Krebs-type structure that is constructed from two [B-β-SbW₉O₃₃]⁹⁻ fragments fused together by a belt of four additional Ti atoms decorated by oxalate ligands. Furthermore, 1 as a heterogeneous catalyst exhibits high activity for Knoevenagel condensation under mild reaction conditions.

Original language	English
Pages (from-to)	465-471
Number of pages	7
Journal	Tungsten
Volume	6
Issue number	2
DOIs	https://doi.org/10.1007/s42864-023-00221-5
Publication status	Published - Jun 2024

Keywords

Knoevenagel condensation
Krebs-type structure
Polyoxometalate
Ti-added POM

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10.1007/s42864-023-00221-5

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title = "A new 4-Ti-added polyoxometalate",

abstract = "A new inorganic–organic hybrid 4-Ti-added polyoxometalate: [H2N(CH3)2]2Na3H5[{Ti(C2O4)(H2O)}2{Ti(C2O4)}2(B-β-SbW9O33)2]·22H2O (1) has been successfully made and further characterized by infrared spectroscopy, thermogravimetric analysis, powder X-ray diffraction and single-crystal X-ray diffraction. The polyoxoanion of 1 exhibits a Krebs-type structure that is constructed from two [B-β-SbW9O33]9− fragments fused together by a belt of four additional Ti atoms decorated by oxalate ligands. Furthermore, 1 as a heterogeneous catalyst exhibits high activity for Knoevenagel condensation under mild reaction conditions.",

keywords = "Knoevenagel condensation, Krebs-type structure, Polyoxometalate, Ti-added POM",

author = "Li, {Hai Lou} and Chen Lian and Yang, {Guo Yu}",

note = "Publisher Copyright: {\textcopyright} The Nonferrous Metals Society of China 2023.",

year = "2024",

month = jun,

doi = "10.1007/s42864-023-00221-5",

language = "English",

volume = "6",

pages = "465--471",

journal = "Tungsten",

issn = "2661-8028",

publisher = "Springer Nature",

number = "2",

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TY - JOUR

T1 - A new 4-Ti-added polyoxometalate

AU - Li, Hai Lou

AU - Lian, Chen

AU - Yang, Guo Yu

N1 - Publisher Copyright: © The Nonferrous Metals Society of China 2023.

PY - 2024/6

Y1 - 2024/6

N2 - A new inorganic–organic hybrid 4-Ti-added polyoxometalate: [H2N(CH3)2]2Na3H5[{Ti(C2O4)(H2O)}2{Ti(C2O4)}2(B-β-SbW9O33)2]·22H2O (1) has been successfully made and further characterized by infrared spectroscopy, thermogravimetric analysis, powder X-ray diffraction and single-crystal X-ray diffraction. The polyoxoanion of 1 exhibits a Krebs-type structure that is constructed from two [B-β-SbW9O33]9− fragments fused together by a belt of four additional Ti atoms decorated by oxalate ligands. Furthermore, 1 as a heterogeneous catalyst exhibits high activity for Knoevenagel condensation under mild reaction conditions.

AB - A new inorganic–organic hybrid 4-Ti-added polyoxometalate: [H2N(CH3)2]2Na3H5[{Ti(C2O4)(H2O)}2{Ti(C2O4)}2(B-β-SbW9O33)2]·22H2O (1) has been successfully made and further characterized by infrared spectroscopy, thermogravimetric analysis, powder X-ray diffraction and single-crystal X-ray diffraction. The polyoxoanion of 1 exhibits a Krebs-type structure that is constructed from two [B-β-SbW9O33]9− fragments fused together by a belt of four additional Ti atoms decorated by oxalate ligands. Furthermore, 1 as a heterogeneous catalyst exhibits high activity for Knoevenagel condensation under mild reaction conditions.

KW - Knoevenagel condensation

KW - Krebs-type structure

KW - Polyoxometalate

KW - Ti-added POM

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U2 - 10.1007/s42864-023-00221-5

DO - 10.1007/s42864-023-00221-5

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SN - 2661-8028

VL - 6

SP - 465

EP - 471

JO - Tungsten

JF - Tungsten

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ER -

A new 4-Ti-added polyoxometalate

Abstract

Keywords

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