Ring

Acceptor (A)

OH∙∙∙A [Å]

O∙∙∙A [Å]

OH∙∙∙A [˚]

1.1

I

O_Methoxy

2.15*

2.623 (5)*

115*

II

O_Methoxy

2.19*

2.655 (4)*

115*

III

N_imine

2.05*

2.771 (5)*

143*

1.2

I

$\text{F}\left({\text{BF}}_4^{-}\right)$

2.01

2.779 (3)

151

II

O_Methoxy

2.13*

2.601 (5)*

116*

III

O_Methoxy

2.18*

2.637 (4)*

114*