Anion Coordination of Bis-bisurea Ligands: Aggregation of Dihydrogen Phosphate Anion into Oligomers and Infinite Chains

Biao Wu; Cuirong Huo; Shaoguang Li; Yanxia Zhao; Xiao Juan Yang

doi:10.1002/zaac.201500243

Anion Coordination of Bis-bisurea Ligands: Aggregation of Dihydrogen Phosphate Anion into Oligomers and Infinite Chains

Biao Wu, Cuirong Huo, Shaoguang Li, Yanxia Zhao, Xiao Juan Yang

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

11 Citations (Scopus)

Abstract

A series of alkanediyl-spaced bis-bisurea ligands (L²-L⁴) were synthesized and their anion coordination behavior studied. These ligands form interesting complexes with polymeric and oligomeric dihydrogen phosphate aggregates in the solid state. The ligands L² and L³ coordinate with H₂PO₄^- anions to form a unique molecular "necklace" with an infinite (H₂PO₄^-)_n chain and surrounding ligand molecules. Meanwhile, two different dihydrogen phosphate-water oligomers, (H₂PO₄)₆·(H₂O)₄ and (H₂PO₄)₄·(H₂O)₂, were observed in the complexes with the ligands L³ and L⁴. In addition, solution anion binding properties of the ligands were studied by ¹H NMR and UV/Vis spectroscopy.

Original language	English
Pages (from-to)	1786-1791
Number of pages	6
Journal	Zeitschrift fur Anorganische und Allgemeine Chemie
Volume	641
Issue number	10
DOIs	https://doi.org/10.1002/zaac.201500243
Publication status	Published - 1 Aug 2015
Externally published	Yes

Keywords

Anion clusters
Anion coordination
Dihydrogen phosphate
NMR spectroscopy
Oligourea
UV/Vis spectroscopy

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10.1002/zaac.201500243

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title = "Anion Coordination of Bis-bisurea Ligands: Aggregation of Dihydrogen Phosphate Anion into Oligomers and Infinite Chains",

abstract = "A series of alkanediyl-spaced bis-bisurea ligands (L2-L4) were synthesized and their anion coordination behavior studied. These ligands form interesting complexes with polymeric and oligomeric dihydrogen phosphate aggregates in the solid state. The ligands L2 and L3 coordinate with H2PO4- anions to form a unique molecular {"}necklace{"} with an infinite (H2PO4-)n chain and surrounding ligand molecules. Meanwhile, two different dihydrogen phosphate-water oligomers, (H2PO4)6·(H2O)4 and (H2PO4)4·(H2O)2, were observed in the complexes with the ligands L3 and L4. In addition, solution anion binding properties of the ligands were studied by 1H NMR and UV/Vis spectroscopy.",

keywords = "Anion clusters, Anion coordination, Dihydrogen phosphate, NMR spectroscopy, Oligourea, UV/Vis spectroscopy",

author = "Biao Wu and Cuirong Huo and Shaoguang Li and Yanxia Zhao and Yang, {Xiao Juan}",

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doi = "10.1002/zaac.201500243",

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T2 - Aggregation of Dihydrogen Phosphate Anion into Oligomers and Infinite Chains

AU - Wu, Biao

AU - Huo, Cuirong

AU - Li, Shaoguang

AU - Zhao, Yanxia

AU - Yang, Xiao Juan

PY - 2015/8/1

Y1 - 2015/8/1

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AB - A series of alkanediyl-spaced bis-bisurea ligands (L2-L4) were synthesized and their anion coordination behavior studied. These ligands form interesting complexes with polymeric and oligomeric dihydrogen phosphate aggregates in the solid state. The ligands L2 and L3 coordinate with H2PO4- anions to form a unique molecular "necklace" with an infinite (H2PO4-)n chain and surrounding ligand molecules. Meanwhile, two different dihydrogen phosphate-water oligomers, (H2PO4)6·(H2O)4 and (H2PO4)4·(H2O)2, were observed in the complexes with the ligands L3 and L4. In addition, solution anion binding properties of the ligands were studied by 1H NMR and UV/Vis spectroscopy.

KW - Anion clusters

KW - Anion coordination

KW - Dihydrogen phosphate

KW - NMR spectroscopy

KW - Oligourea

KW - UV/Vis spectroscopy

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ER -

Anion Coordination of Bis-bisurea Ligands: Aggregation of Dihydrogen Phosphate Anion into Oligomers and Infinite Chains

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Keywords

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