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Nucleoside Triphosphates - From Synthesis to Biochemical Characterization

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Published on: April 3, 2014

Tris(piperazinediium) phosphatododeca-molybo(V,VI)phosphate.

Yu-Kun Lu, Ji-Qing Xu, Hai-Hui Yu

Acta Crystallographica. Section E, Structure Reports Online

|May 18, 2011

Summary

Researchers synthesized a novel mixed-valent molybdenum compound, (H(2)pip)(3)[PMo(12)O(40)], using hydrothermal methods. This structure features a pseudo-Keggin anion and piperazinediium cations linked by hydrogen bonds.

Area of Science:

Inorganic Chemistry
Crystal Engineering
Materials Science

Background:

Keggin-type polyoxometalates are versatile anionic clusters with diverse applications.
Piperazine derivatives are organic cations with potential for forming supramolecular structures.
Hydrothermal synthesis offers controlled conditions for crystalline material preparation.

Purpose of the Study:

To synthesize and characterize a novel mixed-valent molybdenum compound incorporating piperazine.
To investigate the crystal structure and intermolecular interactions of the title compound.
To explore the structural features of pseudo-Keggin anions with organic counterions.

Main Methods:

Hydrothermal synthesis for crystal growth.
Single-crystal X-ray diffraction for structural determination.

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Published on: November 22, 2016

Analysis of hydrogen bonding networks (N-H⋯O, C-H⋯O).

Main Results:

Successful synthesis of (C(4)H(12)N(2))(3)[PMo(12)O(40)] or (H(2)pip)(3)[PMo(12)O(40)].
Determination of the crystal structure revealing a mixed-valent Mo(V,VI) pseudo-Keggin-type [PMo(12)O(40)](6-) anion and piperazinediium cations.
Identification of extensive intermolecular hydrogen bonding networks stabilizing the crystal structure.
Observed disorder in the central PO(4) tetrahedron and bridging oxide groups.

Conclusions:

The study presents a new mixed-valent Keggin-type polyoxometalate complex with piperazinediium cations.
The crystal structure highlights the role of hydrogen bonding in assembling inorganic-organic hybrid materials.
The observed disorder provides insights into the dynamic nature of polyoxometalate structures.