ω/cm⁻¹(2-PQL) [22]

ω/cm⁻¹ (2-PQL)

ω/cm⁻¹ (K₁2-QPL)

Assignments

525

520

539 (+19)

ring deformation

769

768

828 (+60)

C-H wagging

998

996

981 (−15)

ring breathing

−

1266

1271 (+5)

inter-ring C-C stretching

1310

1314

1309 (−43)

C-C stretching (phenyl)

−

1371

1354 (−17)

C-N stretching (QL)

1422

1420

1393 (−27)

C-H bending, C-C stretching (phenyl)

1445

1444

1428 (−16)

C-H bending, C-N stretching (QL)

1462

1462

1460 (−2)

C-H bending, C-C stretching (phenyl)

1490

1487

1524 (+37)

C-H bending, C-C stretching (QL)

−

1501

1524 (+23)

C-C stretching (QL)

1596

1592

1573 (−68)

C-C stretching (phenyl)