Mayr's Database of Reactivity Parameters

Carbocations

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Name Solvent Reactivity
Parameters
Classification Reference
(title or year)
(4-Me)2-tritylium ion
*

E Param.: -0.70

- J. Am. Chem. Soc. 2003, 125, 286-295
10.1021/ja021010y
dibenzo[a,d]tropylium ion
C15H11 *
dichloromethane

E Param.: -0.63

- Liebigs Ann. 1995, , 2005-2009
10.1002/jlac.1995199[...]
(4-Me)-tritylium ion
*

E Param.: -0.13

- J. Am. Chem. Soc. 2003, 125, 286-295
10.1021/ja021010y
(ani)2CH+
C15H15O2 *

E Param.: 0.00

***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y
(4-F)3-tritylium ion
*

E Param.: 0.05

* Eur. J. Org. Chem. 2011, , 6470-6475
10.1002/ejoc.201100910
methoxy-(4-methoxyphenyl)methylium ion
C9H11O2 *

E Param.: 0.14, Deviation: ±0.01

*** Acc. Chem. Res. 2003, 36, 66-77
10.1021/ar020094c
(4-F)2-tritylium ion
*

E Param.: 0.17

* Eur. J. Org. Chem. 2011, , 6470-6475
10.1002/ejoc.201100910
(4-F)-tritylium ion
*

E Param.: 0.35

* Eur. J. Org. Chem. 2011, , 6470-6475
10.1002/ejoc.201100910
tritylium ion (Ph3C+)
C19H15 *

E Param.: 0.51

- J. Am. Chem. Soc. 2003, 125, 286-295
10.1021/ja021010y
ani(pop)CH+
C20H17O2 *

E Param.: 0.61

***** J. Am. Chem. Soc. 2001, 123, 9500-9512
10.1021/ja010890y