Nonapiperidinium monohydrogen deca-vanadate tetra-nitrate

Area of Science:

• Inorganic Chemistry
• Crystallography
• Materials Science

Background:

• Polyoxometalates (POMs) are versatile inorganic clusters with diverse structures and applications.
• Vanadate anions, a subclass of POMs, exhibit rich coordination chemistry and unique electronic properties.
• Piperidinium cations are organic counterions that can influence the self-assembly and properties of inorganic frameworks.

Purpose of the Study:

• To elucidate the crystal structure of the piperidinium decavanadate compound (C(5)H(12)N)(9)[HV(10)O(28)](NO(3))(4).
• To investigate the coordination environment of the decavanadate polyanion and the arrangement of piperidinium cations.
• To understand the role of intermolecular interactions, such as hydrogen bonding, in the crystal packing.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the three-dimensional structure of the compound.
• Structural analysis involved identifying the decavanadate polyanion, piperidinium cations, and nitrate anions.
• Intermolecular interactions, including N-H⋯O hydrogen bonds, were analyzed to understand crystal assembly.

Main Results:

• The crystal structure reveals a monoprotonated decavanadate polyanion ([HV(10)O(28)](3-)) situated on an inversion center.
• Piperidinium cations adopt chair conformations, and nitrate ions are present with varying occupancies.
• Intermolecular N-H⋯O hydrogen bonds link the components into chains along the [001] direction.

Conclusions:

• The study provides a detailed structural characterization of a novel piperidinium decavanadate compound.
• The arrangement of the polyanion, cations, and hydrogen bonding network offers insights into the supramolecular assembly of vanadate-based materials.
• The findings contribute to the understanding of structure-property relationships in polyoxovanadates.