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Published on: December 29, 2016
Binary pnictogen azides--an experimental and theoretical study: [As(N3)4]-, [Sb(N3)4]-, and [Bi(N3)5(dmso)]2-
Axel Schulz1, Alexander Villinger
1Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany. axel.schulz@uni-rostock.de
Researchers synthesized novel tetraazidopnictates and pentaazidopnictates using silver azide. These compounds, featuring arsenic, antimony, and bismuth, expand the known chemistry of azido-pnictate anions.
Area of Science:
- Inorganic Chemistry
- Materials Science
Background:
- Azidopnictate anions are of interest due to their unique bonding and potential applications.
- Previous research has explored various pnictogen-nitrogen compounds, but azido-pnictates remain less studied.
Purpose of the Study:
- To synthesize and characterize novel tetraazidopnictate and pentaazidopnictate compounds.
- To investigate the formation of these azido complexes with different pnictogen elements (As, Sb, Bi).
Main Methods:
- Reaction of [PPh(4)][EI(4)] salts (E=As, Sb, Bi) with silver azide (AgN(3)).
- Structure elucidation using X-ray crystallography.
- Computational studies using density functional theory (DFT) to understand anion formation.
Main Results:
- Successful synthesis of tetraazidopnictates [PPh(4)][E(N(3))(4)] for E=As, Sb.
- Synthesis of pentaazidobismuthate, [PPh(4)](2)[Bi(N(3))(5)(dmso)], stabilized as a DMSO adduct.
- DFT calculations provided insights into successive anion formation pathways.
Conclusions:
- The study expands the family of known azidopnictate compounds.
- The findings contribute to understanding the coordination chemistry of pnictogens with azide ligands.
- This work provides a foundation for further exploration of azidopnictate complexes.
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