Synthesis and reactivity of a strained silicon-bridged [1]ferrocenophanium ion.
Not blue but red-brown: A [1]ferrocenophanium ion has been synthesized and isolated as a red-brown crystalline salt, surprisingly different in color from characteristically blue-green unstrained ferrocenium ions. Compared to the neutral iron(II) counterpart, the [1]ferrocenophanium ion displays a considerably higher ring tilt and an increased propensity for ring-opening reactions.
Masson
Georgeta
G
Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada.
Herbert
David E
DE
Whittell
George R
GR
Holland
Jason P
JP
Lough
Alan J
AJ
Green
Jennifer C
JC
Manners
Ian
I