Synthesis and Characterization of Biologically Active 10-Membered Tetraazamacrocyclic Complexes of Cr(III), Mn(III), and Fe(III)

Table 1

Analytical data of trivalent chromium, manganese, and iron complexes derived from succinyldihydrazide and glyoxal. Found (Calcd.) %.

Serial no.	Complexes	M	C	H	N	Colour	Mol. Wt.
1	[Cr(C6H8N4O2)Cl]Cl2	15.12(15.95)	22.39 (22.08)	2.43 (2.45)	17.19 (17.17)	Light green	326
2	[Cr(C6H8N4O2)(NO3)](NO3)2	12.78(12.80)	17.49 (17.73)	1.79 (1.97)	24.31 (24.13)	Light mustered	406
3	[Cr(C6H8N4O2)(OAc)](OAc)2	13.15(13.09)	36.31 (36.27)	4.29 (4.28)	14.12 (14.10)	Yellowish white	397
4	[Mn(C6H8N4O2)(OAc)](OAc)2	13.81(13.75)	36.10 (36.00)	4.19 (4.25)	14.01 (14.00)	Creamy	400
5	[Fe(C6H8N4O2)Cl]Cl2	16.84(16.96)	21.89 (21.81)	2.39 (2.42)	16.94 (16.96)	Light yellow	330.5
6	[Fe(C6H8N4O2)(NO3)](NO3)2	13.89 (13.65)	17.58 (17.56)	1.92 (1.95)	23.87 (23.90)	Creamy	410
7	[Fe(C6H8N4O2)(OAc)](OAc)2	13.87 (13.96)	35.88 (35.91)	4.27 (4.23)	13.82 (13.95)	Light brown	401