Cooperative dinitrogen capture by a diboraanthracene/samarocene pair†
Song
Xu, 
a
Laura A.
Essex,
b
Joseph Q.
Nguyen,
a
Phillip
Farias,
b
Joseph W.
Ziller,
a
W. Hill
Harman
*b
and
William J.
Evans
*a
a
Laura A.
Essex,
b
Joseph Q.
Nguyen,
a
Phillip
Farias,
b
Joseph W.
Ziller,
a
W. Hill
Harman
*b
and
William J.
Evans
*a
Abstract
The combination of a boron Lewis acid and a decamethylsamarocene, specifically 9,10-Me2-9,10-diboraanthracene with (C5Me5)2SmII(THF)2, in toluene leads to cooperative reductive capture of N2. The product crystallizes as the salt, [(C5Me5)2SmIII(THF)2][(C5Me5)2SmIII(η2-N2B2C14H14)], 1, which formally is comprised of an (N![[double bond, length as m-dash]](https://www.rsc.org/images/entities/char_e001.gif)
N)2− moiety sandwiched between a [(C5Me5)2SmIII]1+ metallocene cation and the diboraanthracene ditopic Lewis acid.
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