-
Salts of the
tropylium cation can be stable, even with
nucleophiles of
moderate strength e.g.,
tropylium tetrafluoroborate and
tropylium bromide (see...
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Tropylium tetrafluoroborate is an
organic compound with the
formula [C7H7]+[BF4]−.
Containing the
tropylium cation and the non-coordinating tetrafluoroborate...
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incomplete octet of electrons; however,
certain carbenium ions, such as the
tropylium ion, are
relatively stable due to the
positive charge being delocalised...
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methylene bridge (-CH2-) with
respect to the
other atoms;
however the
related tropylium cation is.
Albert Ladenburg first generated cycloheptatriene in 1881 by...
- of
toluene [1]. Note
parent peak
corresponding to
molecular m**** M = 92 (C7H8+) and
highest peak at M-1 = 91 (C7H7+, quasi-stable
tropylium cation)....
- the
fusion of a 6 π-electron
cyclopentadienyl anion and a 6 π-electron
tropylium cation: one
electron from the seven-membered ring is
transferred to the...
- or
negative carbanions.
Carbocations are
often named -um.
Examples are
tropylium and
triphenylmethyl cations and the
cyclopentadienyl anion. Haloalkanes...
-
selected nucleophiles with
selected electrophilic carbocations such as
tropylium or
diazonium cations: or (not displa****) ions
based on
malachite green...
-
structure for it; however,
Doering and Knox
convincingly showed that it was
tropylium (cycloheptatrienylium) bromide. This ion is
predicted to be
aromatic by...
-
pentadienyl cations and is
thought to be antiaromatic. Similarly, the
tropylium cation (C 7H+ 7), also with six π electrons, is so
stable compared to...
