Phytochemical and Safety Evaluation of Hydroethanolic Leaf Extract of Tecoma stans (L.) Juss. ex Kunth

Table 2

Functional groups present in fractions of T. stans.

Wave numbers (cm^−1)	Y (%T)	Bond	Assignments
Hydro fraction
3339.06	50.56	O-H stretch, H bonded	Alcohols, phenols
2107.17	95.75	C≡C stretch	Alkynes
1634.45	70.36	C=O stretch	Carbonyls (general), α, β-unsaturated aldehydes, ketones
422.82	31.11	Unknown	Unknown
414.57	31.14	Unknown	Unknown
Ethyl acetate fraction
3373.96	90.79	O-H stretch, H-bonded	Alcohols, phenols
2926.73	80.64	O-H stretch	Carboxylic acids
2872.58	87.17	N-H stretch	1°, 2° amines, amides
1726.16	89.32	C=O stretch	α,β-aldehydes, ketones, saturated aliphatic acids
1655.64	89.42	C=C stretch	Alkenes
1457.11	88.34	C-H bend	Alkanes
1377.97	88.37	Unknown	Unknown
1215.54	85.51	C-H wag	Alkyl halides
1153.59	83.07	C-O stretch	Alcohols, carboxylic acids, esters, ethers
837.67	91.50	C-Cl stretch	Alkyl halides
773.57	92.13	C-Cl stretch	Alkyl halides
556.54	90.63	C-Br stretch	Alkyl halides
Methanol fraction
3307.47	70.71	O-H stretch, free hydroxyl	Alcohols, phenols
2941.5	78.95	O-H stretch	Carboxylic acids
2833.47	82.61	C-H stretch	Alkanes
1710.79	87.57	C=O stretch	α.β-unsaturated aldehydes, ketones.
1603.41	69.06	C-C stretch (in ring)	Aromatics
1515.94	87.45	N-O asymmetric stretch	Nitro compounds
1382.69	71.15	C-H rock	Alkanes
1256.46	75.39	C-N stretch	Aliphatic amines
1019.30	27.61	C-O stretch	Alcohols, carboxylic acids, esters, ethers.
513.59	52.92	C-Br stretch	Alkyl halides