Theoretical Studies on Structures and Electronic State of Alkyl-Substituted Ethyl Cations

Table 1

Alkyl-substituted ethyl cations 1–11.

	Cation	R^1	R^2	R^3	R^4	R^5
	1 ^a	H	H	H	H	H
	2	H	H	H	H	H
	3	Me	H	H	H	H
	4	Me	Me	H	H	H
	5	H	H	Me	H	Me
	6 ^a	H	Me	H	Me	H
	7 ^a	Me	H	H	Me	H
	8	Me	H	H	Me	H
	9	Me	Me	Me	Me	H
	10 ^a	Me	Me	H	Me	Me
	11	Me	Me	Me	Me	Me

aNonclassical cation.