R1,R2-C=Se

R1

R2

Nf

C=Se

Cā€“N

N

N

261

1.841 (0.022)

1.352 (0.018)

N3

N3

252

1.841 (0.022)

1.352 (0.018)

N

C

97

1.830 (0.018)

1.323 (0.025)

N3

C3

71

1.832 (0.017)

1.322 (0.026)

N3

C4

23

1.819 (0.019)

1.329 (0.016)

C

C

3

1.796 (0.026)

ā€“

C3

C3

2

1.808 (0.024)

ā€“

C4

C4

1

1.773

ā€“