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Synthesis of a Molecule with Five Different Adjacent Pnictogens
Christian Ritter1, Florian Weigend2, Carsten von Hänisch1
1Department of Chemistry and, Wissenschaftliches Zentrum für Materialwissenschaften (WZMW), Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35032, Marburg, Germany.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|May 20, 2020
Summary
Researchers synthesized the first molecule containing all five pnictogens (Group 15 elements). This novel compound, featuring arsenic, antimony, and bismuth, exhibits surprising stability.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Organometallic Chemistry
Background:
- Pnictogens (Group 15 elements) are crucial in various chemical applications.
- Synthesizing molecules with multiple different pnictogens presents significant challenges.
- Previous research has not reported compounds containing all five pnictogens.
Purpose of the Study:
- To synthesize and characterize the first molecular compound incorporating all five pnictogens.
- To explore the reactivity of pnictogen-containing precursors.
- To investigate the structural and stability properties of novel multi-pnictogen compounds.
Main Methods:
- Multi-step synthesis involving lithiation of a bisamido-diazadiarsetidine precursor.
- Reactions with arsenic, antimony, and bismuth chlorides.
- Further conversion using a specialized antimony-phosphorus reagent.
Main Results:
- Successful synthesis of polycyclic compounds containing arsenic, antimony, and bismuth.
- Formation of the first molecule containing all five pnictogens: arsenic, antimony, bismuth, phosphorus, and nitrogen.
- The resulting compound exhibits unexpected stability, particularly concerning the bismuth-phosphorus bond.
Conclusions:
- A groundbreaking molecular compound integrating all five pnictogens has been achieved.
- This discovery opens new avenues for designing complex pnictogen-based materials.
- The unexpected stability of the AsNBiPSb-chain compound challenges previous assumptions about pnictogen bond lability.
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