Synthesis, Characterization, and Structural Assessment of Ni(II) Complexes Derived from Bis(2-hydroxy-1-naphthaldehyde)succinoyldihydrazone

Table 1

Analytical data and physical properties of Ni(II) complexes derived from bis(2-hydroxy-1-naphthaldehyde)succinoyldihydrazone.

Serial number	Complex and colour	DP (°C)	Yield (%)	Analysis: found (calc.) (%)				Molar conductance	Magnetic moment	Electronic spectral bands
				Ni	C	H	N	() Ohm^−1cm^2mol^−1	(BM)	(nm) ( dm^3mol^−1cm^−1)
1	[Ni(H2nsh)(H2O)2]; Brown	>300	70.00	10.54; (10.73)	56.94; (57.07)	4.39; (4.42)	10.14; (10.24)	3.13	2.87	319 (2755), 364 (1815), 410 (1733), 564 (80), 845 (37)
2	[Ni(H2nsh)(py)2]·2H2O; Brown	>300	68.00	8.24; (8.32)	61.12; (61.30)	4.85; (4.86)	11.86; (11.91)	2.81	3.45	319 (3938), 364 (2579), 413 (2214), 562 (80), 842 (36)
3	[Ni(H2nsh)(2-pic)2]; Yellow	>300	65.00	8.04; (8.41)	64.94; (65.44)	4.89; (4.91)	11.94; (12.05)	2.62	2.98	319 (1428), 366 (1265), 411 (1777), 429 (1386), 564 (37), 847 (33)
4	[Ni(H2nsh)(3-pic)2]·2H2O; Brown	>300	63.00	7.95; (8.00)	62.17; (62.23)	5.21; (5.22)	11.41; (11.46)	2.91	3.09	319 (3930), 366 (2534), 410 (2216), 563 (80), 846 (37)
5	[Ni(H2nsh)(4-pic)2]; Dark brown	>300	65.00	8.11; (8.41)	65.03; (65.44)	4.89; (4.91)	11.98; (12.05)	2.85	3.30	319 (1838), 362 (1131), 409 (1047), 561 (80), 842 (36)
6	[Ni2(nsh)(H2O)4]·H2O; Brown	>300	69.00	17.73; (17.84)	47.38; (47.47)	4.27; (4.29)	8.47; (8.52)	2.97	1.73	325 (6874), 369 (6653), 420 (8649), 562 (50), 843 (29)
7	[Ni2(nsh)(py)4]·4H2O; Light brown	>300	62.00	12.19; (12.27)	57.66; (57.78)	4.83; (4.85)	11.67; (11.72)	2.81	1.14	326 (3345), 368 (3442), 421 (5091), 564 (81), 848 (35)
8	[Ni2(nsh)(2-pic)4]·4H2O; Brown	>300	65.00	11.44; (11.59)	59.27; (59.32)	5.36; (5.38)	11.02; (11.07)	2.72	1.54	326 (2987), 421 (4006), 565 (79), 849 (29)
9	[Ni2(nsh)(3-pic)4]·4H2O; Brown	>300	64.00	11.46; (11.59)	59.28; (59.32)	5.36; (5.38)	11.04; (11.07)	2.64	1.39	326 (5030), 421 (7445), 568 (79), 850 (29)
10	[Ni2(nsh)(4-pic)4]·4H2O; Light brown	>300	65.00	11.45; (11.59)	59.29; (59.32)	5.37; (5.38)	11.03; (11.07)	2.81	1.29	348 (5058), 420 (7123) 563 (79), 844 (29)