Synthesis, Crystal Structure, and Characterization of A New Adduct Bis-(2-Amino-3-Benzyloxypyridinium) Selenate Monohydrate [C₁₂H₁₃N₂O]₂SeO₄.H₂O

Abstract

A new adduct bis-(2-amino-3-benzyloxypyridinium) selenate monohydrate, [C₁₂H₁₃N₂O]₂SeO₄.H₂O, has been synthesized by slow evaporation at room temperature using 2-amino-3-benzyloxypyridine as the structure-directing agent. The structure, determined by single-crystal X-ray diffraction at 298 K, can be described as organic-inorganic tunnels with different forms built by infinite inorganic chains parallel to the c axis and connected to the organic cations. In this atomic arrangement, hydrogen bonds and van der Waals interactions between the different species play an important role in the tri-dimensional network cohesion. Solid-state ¹³C and ⁷⁷Se MAS NMR spectroscopy results are in agreement with the X-ray structure.

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GRAPHICAL ABSTRACT

Keywords:

• Organic-selenate
• crystal structure
• hydrogen bonds
• infrared, Raman, and NMR spectroscopy

Acknowledgments

The authors express their most grateful thanks to Xavier Fontrodona, from Compus Montilivi, Universita de Girona, for the X-ray data collection.