The Triply Deprotonated Acetonitrile Anion CCN3-Stabilized in a Solid.
The unprecedented, fully deprotonated form of acetonitrile, the acetonitriletriide anion CCN3-, is experimentally realized for the first time in the stabilizing bulk host framework of the Ba5[TaN4][C2N] nitridometalate via a one-pot synthesis from the elements under moderate conditions (920 K). The molecular structure of this long-sought acetonitrile derivative is confirmed by X-ray diffraction, as well as NMR, IR, and Raman spectroscopy. The anion is isoelectronic to the CO2molecule, and, in contrast to acetonitrile (H3C-C≡N), the electron pairs are shifted towards two double bonds, that is, [C=C=N]3-.
Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187, Dresden, Germany.|Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany.
Franziska
F
Jach
Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany.
Stephan Ingmar
SI
Brückner
Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187, Dresden, Germany.
Alexander
A
Ovchinnikov
Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany.
Anna
A
Isaeva
Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187, Dresden, Germany.
Matej
M
Bobnar
Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany.
Matthias Friedrich
MF
Groh
Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany.
Eike
E
Brunner
Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187, Dresden, Germany.
Peter
P
Höhn
Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187, Dresden, Germany.|Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany.
Michael
M
Ruck
NMR spectroscopy; acetonitriletriide; nitridometalates; solid-state synthesis; structure elucidation