Oligomers of iso-triacetylene have been investigated as components for electronic materials, due to their interesting structural and nonlinear optical properties. Recent efforts have been geared toward the incorporation of these cross-conjugated ligands into �wire-like� organometallic scaffolds. The development of organometallic complexes can assist in the elucidation of charge transfer through these cross-conjugated systems. Although recently there has been considerable progress, only a few examples of cross-conjugated first row transition metal complexes have been synthesized. Our emphasis has been on the integration of geminal diethynylethene(gem-DEE) species onto a versatile, redox-active [Co(cyclam)]+3 synthon. The preparation and characterization of compounds [Co(cyclam)(gem-DEE-TIPS)Cl]Cl, [Co(cyclam)(gem-DEE-TIPS)2]Cl, and the bridged complex [{Co(cyclam)Cl}2 �-gem-DEE]Cl2 are presented here.

Synthesis of cobalt s-<i>gem</i>-DEE compounds:  Effects of cross-conjugation on electron transfer

248th National Meeting (2014)

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Synthesis of cobalt s-gem-DEE compounds: Effects of cross-conjugation on electron transfer