Reactivity of an aza-dipyrrin and an aza-BODIPY motif bearing two 2-pyridyl units: an emissive NNN binding pocket
Rosinah Liandrah
Gapare, 
a
Roberto M.
Diaz-Rodriguez,
ab
Victoria A.
Williams,
a
Erin R.
Johnson,
a
Katherine N.
Robertson
c
and
Alison
Thompson
*a
a
Roberto M.
Diaz-Rodriguez,
ab
Victoria A.
Williams,
a
Erin R.
Johnson,
a
Katherine N.
Robertson
c
and
Alison
Thompson
*a
Abstract
The synthesis and reactivity of an aza-dipyrrin and an aza-BODIPY motif each featuring two 2-pyridyl rings appended to the pyrrolic units are reported. The tricoordinate NNN binding domain was complexed to various metals, with Zn(II) analogues isolated and crystallographically characterised. Furthermore, the addition of alcohols across the aza-fulvenium unit provided an amino-decorated framework that served as a convenient pro-ligand for turn-on emissive metal sensing.
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