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Published on: May 13, 2013
Vanadium nitride functionalization and denitrogenation by carbon disulfide and dioxide
Justin K Brask1, Víctor Durà-Vilà, Paula L Diaconescu
1Department of Chemistry, Room 2-227, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA.
Chemical Communications (Cambridge, England)
|July 19, 2002
Summary
New vanadium complexes with dithiocarbamate and carbamate ligands show distinct behaviors. Density Functional Theory (DFT) calculations explain these differences in reactivity for organometallic chemistry research.
Area of Science:
- Organometallic Chemistry
- Inorganic Chemistry
- Computational Chemistry
Background:
- Vanadium complexes with nitride ligands are versatile precursors.
- Dithiocarbamate and carbamate ligands can be synthesized via nucleophilic addition.
Purpose of the Study:
- To synthesize and characterize novel vanadium dithiocarbamate and carbamate complexes.
- To investigate the behavioral differences between these two types of complexes.
- To rationalize the observed differences using computational methods.
Main Methods:
- Synthesis of vanadium nitride precursor: ([Ar(But)N]3V≡NNa)2.
- Nucleophilic addition reactions with carbon disulfide (CS2) and carbon dioxide (CO2).
- Density Functional Theory (DFT) calculations for electronic structure analysis.
Main Results:
- Successful preparation of [Ar(But)N]3V(NCS2)Na(THF)2 and [Ar(But)N]3V(NCO2)Na(THF)2 complexes.
- Observation of a dramatic difference in reactivity and behavior between the dithiocarbamate (E=S) and carbamate (E=O) complexes.
- DFT calculations provided insights into the electronic factors governing the observed behavioral differences.
Conclusions:
- The nature of the chalcogen (S vs. O) in the dithiocarbamate and carbamate ligands significantly impacts the properties of the vanadium complexes.
- DFT calculations are a valuable tool for understanding the reactivity and bonding in these organometallic systems.
- This study expands the scope of vanadium complex chemistry and provides a foundation for further investigations into their applications.
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