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Synthesis and Structural Characterization of New Polyphosphorus Ring and Cage Compounds
Danan Dou1, Eileen N. Duesler, Robert T. Paine
1Department of Chemistry, University of New Mexico, Albuquerque, New Mexico 87131.
Inorganic Chemistry
|October 24, 2001
Summary
Reactions of silylated phosphide lithium reagents with amino chlorophosphanes yielded novel four-membered rings and cage compounds. One complex featured an iron tetracarbonyl fragment bonded to a silicon-phosphorus center.
Area of Science:
- Organometallic Chemistry
- Main Group Chemistry
- Coordination Chemistry
Background:
- Exploration of silylated phosphide lithium reagents in reactions with phosphorus halides.
- Synthesis and characterization of novel phosphorus-containing compounds.
Purpose of the Study:
- To investigate the reactivity of (Me(3)Si)(2)PLi.2THF with various amino chlorophosphanes.
- To synthesize and characterize new organophosphorus compounds and their metal complexes.
Main Methods:
- Survey of 1:1 and 2:1 reactions between (Me(3)Si)(2)PLi.2THF and amino chlorophosphanes.
- Characterization of synthesized compounds using spectroscopic techniques (e.g., NMR, mass spectrometry).
- Determination of molecular structures of key compounds (4 and 11) via X-ray crystallography.
Main Results:
- Formation of a four-membered ring compound (3) from reactions with (i)Pr(2)NPCl(2).
- Synthesis of a monometallic iron complex (4) where Fe(CO)(4) binds to a Me(3)SiP center.
- Isolation of bis-phosphane substitution products and a cage compound from reactions with cyclic phosphanes.
Conclusions:
- Demonstrated diverse reactivity of silylated phosphide lithium reagents with different amino chlorophosphanes.
- Successfully synthesized and structurally characterized novel organophosphorus compounds and a unique iron complex.
- Highlighted the potential for creating complex phosphorus architectures through controlled reactions.