id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
eurjchem-482	Altun, Ozlen; Bilcen, Selin	Spectrophotometric investigation of DL-tryptophan in the presence of Ni(II) or Co(II) ions	2012	5	.pdf	application/pdf	3453	252	66	In the present study, synthesis of transition metal complexes of DL‐tryptophan with metal precursors such as nickel (II) and cobalt (II) ions in water under refluxing conditions and optimization of the reactions to obtain the composition of complexes in water solutions has been reported. In the infrared spectrum of complexes, two bands centered at 3422 and 3235 cm‐1 for nickel (II) complex and 3424 and 3237 cm‐1 for cobalt (II) complex are attributed to the ν(OH) and ν(NH) vibrations of the lattice water molecule and the amine group, respectively.	cache/eurjchem-482.pdf	txt/eurjchem-482.txt