Novel Gallium(III), Germanium(IV), and Hafnium(IV) Folate Complexes and Their Spectroscopic, Thermal Decomposition, Morphological, and Biological Characteristics

Table 1

Infrared spectral frequency data of FAH₂ and synthesized complexes.

Assignments	FAH2	Ga(III) complex	Ge(IV) complex	Hf(IV) complex
ν (OH); H2O	3558	3487	3486	3468
	3411
ν (NH) amide	3318	3153	3158	3139
νas (CH)	3119	3043	3022	3003
	2933
νs (CH)	2826	2810	2791	2790
Ν (COOH)	1702	1697	1697	1697
νas (COO−)	1604	1618	1618	1618
δ (NH) amide II	1564	1525	1523	1525
νs (COO−)	1485	1405	1401	1399
νas (CC)	1338	1286	1298	1259
ν (CN)	1192	1178	1178	1178
νs (CC)	913	970	900	966
δ (CC)	833	846	767	873
ν (M–O)	—	510	501	514