In situ generated polysiloxanes stabilizing μ3-oxo bridged Sb3 triangles

Area of Science:

• Organometallic Chemistry
• Materials Science
• Supramolecular Chemistry

Background:

• Organoantimony(v) compounds are of interest for their unique chemical properties.
• Siloxane frameworks offer versatile platforms for stabilizing molecular architectures.

Purpose of the Study:

• To synthesize and characterize novel organoantimony(v) based molecular triangles.
• To investigate the role of siloxane frameworks in stabilizing these triangular structures.

Main Methods:

• Reaction of RSbO3H2 with t-butylsilanetriol under varying conditions.
• Isolation and characterization of the resulting molecular assemblies.

Main Results:

• Successful isolation of organoantimony(v) molecular triangles.
• Demonstration that siloxane frameworks (disiloxane, tetrasiloxane, or trisiloxane) stabilize the Sb3 triangle.
• Control over framework formation by reaction conditions and antimony substituents.

Conclusions:

• The study presents a new route to organoantimony(v) molecular triangles.
• Siloxane frameworks are effective stabilizers for these unique antimony clusters.
• Tunable synthesis allows for control over the stabilizing framework.