Formation and Reactivity of heavy Group 14-15 bonds

Area of Science:

• Organometallic Chemistry
• Main Group Chemistry
• Low-Valent Compounds

Background:

• Low-valent compounds of Group 14 and 15 elements are of significant interest due to their unique bonding and reactivity.
• The synthesis and characterization of heteronuclear low-valent compounds present synthetic challenges.

Purpose of the Study:

• To synthesize and characterize novel low-valent heteronuclear compounds featuring Group 14 and 15 elements.
• To explore the structural diversity and bonding in these new compounds.
• To investigate the reactivity of these low-valent species.

Main Methods:

• Synthesis of low-valent compounds using [(Dipp2NacNac)MCl] and M'E(SiMe3)2 precursors.
• Characterization via NMR spectroscopy, IR spectroscopy, and X-ray structure analysis.
• UV-Vis spectroscopy and reactivity studies with various substrates.

Main Results:

• Successful synthesis and characterization of [(Dipp2NacNac)ME(SiMe3)2] compounds for M=Ge, Sn, Pb and E=As, Sb, Bi (except Pb-Bi).
• Reported the first low-valent tetrelene featuring a tin-bismuth bond.
• Characterized a tin-selenium-arsenic chain compound [(Dipp2NacNac)Sn-Se-As(SiMe3)2] via reaction with red selenium.

Conclusions:

• The study expands the scope of low-valent heteronuclear Group 14-15 compounds.
• The synthesized compounds exhibit interesting structural motifs and bonding.
• Further investigations into the reactivity of these novel low-valent species are warranted.