Planar P(6)E(6) (E = Se, S) macrocycles incorporating P(2)N(2) scaffolds

Area of Science:

• Inorganic Chemistry
• Materials Science
• Supramolecular Chemistry

Background:

• Alkali metal derivatives of dianions offer versatile precursors for novel molecular architectures.
• The synthesis of macrocyclic compounds with unique structural motifs remains a key challenge in inorganic chemistry.

Purpose of the Study:

• To synthesize and characterize novel 15-membered macrocycles.
• To investigate the structural features of the P(6)E(6) motif stabilized by P(2)N(2) scaffolds.

Main Methods:

• Oxidation of alkali metal derivatives of dianions [E((t)BuN)P(μ-N(t)Bu)(2)P(N(t)Bu)E](2-) (E = S, Se) using iodine (I(2)).
• Characterization of the resulting macrocyclic products.

Main Results:

• Successful synthesis of 15-membered macrocycles.
• The macrocycles contain a planar P(6)E(6) core.
• This core is stabilized by perpendicular P(2)N(2) scaffolds.

Conclusions:

• The study demonstrates a new route to complex macrocyclic structures.
• The findings contribute to the understanding of phosphorus-chalcogen bonding and macrocycle stabilization.