An Isolable Radical Anion and Dianion of a Cyclotetrasilane: Synthesis and Structure of [Si{1,2‐(NEt) 2 C 6 H 4 }] 4  −  .  and [Si{1,2‐(NEt) 2 C 6 H 4 }] 4  2− | Zendy

Gehrhus Barbara | Zendy; Hitchcock Peter B. | Zendy; Zhang Lihong | Zendy

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An Isolable Radical Anion and Dianion of a Cyclotetrasilane: Synthesis and Structure of [Si{1,2‐(NEt) 2 C 6 H 4 }] 4 − . and [Si{1,2‐(NEt) 2 C 6 H 4 }] 4 2−

Author(s) -

Gehrhus Barbara,

Hitchcock Peter B.,

Zhang Lihong

Publication year - 2004

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200352882

Subject(s) - silylene , substituent , yield (engineering) , chemistry , ion , silicon , crystallography , medicinal chemistry , materials science , organic chemistry , metallurgy

Silicon squares up : The silylene Si[1,2‐(NR) 2 C 6 H 4 ] (R=CH 2 t Bu) is thermally stable owing to its bulky substituent. What effect will a reduction of the size of R have on the stability of a two‐coordinate Si II species? Results show that a silylene with R=Et cannot be isolated but will yield a stable radical anion (see picture) and dianion of a cyclotetrasilane.

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