Synthesis, Characterization, and Photophysical Studies of Some Novel Ruthenium(II) Polypyridine Complexes Derived from Benzothiazolyl hydrazones

Table 1

Physical and analytical data of ligands and their complexes.

CC	Yield (%)	Colour	MP (°C)	Empirical formula	Elemental analysis found (Calcd.) (%)
					C	H	N	S	Ru
3a	90	Pale brown	225	C15H11N3OSClI	40.59	2.44	9.43	7.18
					(40.63	2.48	9.48	7.22)
3b	90	Yellow	185	C15H13N3O2S	60.16	4.29	14.01	10.67
					(60.20	4.34	14.04	10.70)
3c	85	Dirty green	160	C15H13N3O2S	60.15	4.29	13.98	10.68
					(60.20	4.34	14.04	10.70)
3d	90	Dirty yellow	220	C15H12N3OSCl	56.72	3.75	13.19	10.05
					(56.78	3.78	13.24	10.09)
3e	90	Pale yellow	210	C16H14N3OSCl	57.97	4.19	12.61	9.62
					(58.00	4.22	12.65	9.66)
4a	90	Dirty yellow	224	RuC35H26N7OCl3SI	45.29	2.76	10.54	3.41	10.84
					(45.35	2.80	10.58	3.45	10.90)
4b	90	Black	270	RuC35H28N7O2Cl2S	53.64	3.54	12.49	4.02	12.86
					(53.70	3.58	12.53	4.09	12.91)
4c	85	Brown	210	RuC35H28N7O2Cl2S	53.64	3.53	12.49	4.05	12.87
					(53.70	3.58	12.53	4.09	12.91)
4d	90	Dark brown	310	RuC35H27N7OCl3S	52.46	3.32	12.20	3.95	12.58
					(52.50	3.37	12.25	4.00	12.62)
5a	85	Brown	225	RuC39H26N7OSCl3I	47.98	2.61	10.01	3.24	10.30
					(48.04	2.66	10.06	3.28	10.36)
5d	90	Dark brown	290	RuC39H27N7OSCl3	55.12	3.12	11.50	3.74	11.86
					(55.18	3.18	11.55	3.77	11.91)
5e	90	Brown	215	RuC40H29N7OSCl3I	48.49	2.89	9.84	3.18	10.16
					(48.53	2.93	9.90	3.23	10.21)

CC: compound code.