Table 3 Assignments of the different bending C-H band modes.

From: Anticorrosion and antimicrobial performance of extracted and fractionated phytochemicals of terminalia bentzoe leaves

Wave number (Cm− 1)

Transmittance

Assignments

ME

n-BF

QF

1458sh

0.454

0.499

0.736

Bending deformation (scissoring mode) for CH2 group

1443b

0.421

0.466

0.708

1390b

0.182

0.227

0.432

Bending deformation (scissoring mode) for CH3 group

1369sh

0.338

0.383

0.656

930 sh

0.907

0.952

0.983

The rocking vibration of CH3 group

833m

0.892

0.937

0.979

Out-of-plane deformation of CH group in 1,2-disubstituted benzene ring

750m

0.743

0.788

0.901

698sh

0.764

0.809

0.892

δ (CH2) coupled with skeletal stretching vibrations

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