Toward coordination polymers based on fine-tunable group 13 organometallic phthalates

Area of Science:

• Organometallic Chemistry
• Materials Science
• Coordination Chemistry

Background:

• Group 13 organometallic compounds exhibit diverse structures and reactivities.
• Macrocyclic phthalates serve as versatile ligands in coordination chemistry.
• Understanding the transformation of macrocyclic structures is crucial for designing new materials.

Purpose of the Study:

• To synthesize a series of group 13 organometallic macrocyclic phthalates.
• To investigate the reactivity of these compounds with monodentate Lewis bases.
• To characterize the resulting coordination polymers structurally and spectroscopically.

Main Methods:

• Synthesis of organometallic macrocyclic phthalates (M = Al, Ga, In).
• Reaction of macrocycles with various monodentate Lewis bases.
• Single-crystal X-ray diffraction for structural determination.
• Spectroscopic studies (e.g., NMR, IR) for characterization.

Main Results:

• Successful preparation of homologous group 13 organometallic macrocyclic phthalates.
• Disruption of tetranuclear macrocyclic structures by Lewis bases.
• Formation of the first structurally characterized methylindium and methylaluminum 1D coordination polymers.
• Identification of dicarboxylate ligands stabilizing the polymer structures.

Conclusions:

• Group 13 organometallic macrocyclic phthalates are susceptible to structural transformation upon reaction with Lewis bases.
• This reactivity leads to the formation of novel 1D coordination polymers.
• The findings provide a new pathway for synthesizing coordination polymers with group 13 metals.