R1

R2

Donor

Nf

d

d(C=Te)

ρ

φ

θ

ρ ≥ 90˚

X

X

C

25

3.12 (0.13)

2.06 (0.02)

149 (15)

118 (26)

31 (22)

N

O

ρ ≥ 120˚

X

X

C

24

3.12 (0.13)

2.06 (0.02)

150 (14)

116 (25)

32 (22)

N

O

N

N

C

15

3.12 (0.14)

2.07 (0.01)

154 (12)

117 (24)

27 (23)

N

O

N3

N3

C

15

3.12 (0.14)

2.07 (0.01)

154 (12)

117 (24)

27 (23)

N

O

N

C

C

5

3.10 (0.16)

2.06 (0.01)

146 (19)

105 (18)

50 (19)

N

O

N3

C

C

5

3.10 (0.16)

2.06 (0.01)

146 (19)

105 (18)

50 (19)

N

O