In:
Zeitschrift für Naturforschung B, Walter de Gruyter GmbH, Vol. 75, No. 4 ( 2020-04-28), p. 383-391
Abstract:
Condensation of 3,6-dichloropyridazine or 3,6-dichloro-4,5-dimethyl- pyridazine with 3-methyl-1 H -pyrazole or 4-methyl-1 H -pyrazole with the assistance of sodium metal in tetrahydrofuran at reflux afforded three 3,6-bis(pyrazolyl)- pyridazine-type ligands: 3,6-bis(3-methylpyrazolyl)pyridazine (L1), 3,6-bis(4-methyl- pyrazolyl)pyridazine (L2) and 4,5-dimethyl-3,6-bis(4-methylpyrazolyl)pyridazine (L3). Reactions of cis -[RuCl 2 (bpy) 2 ] · 2H 2 O (bpy = 2,2′-bipyridine) and L1, L2 or L3 in the presence of NH 4 PF 6 produced the heteroleptic cationic ruthenium(II) complexes [Ru(L1)(bpy) 2 ](PF 6 ) 2 ( 1 ), [Ru(L2)(bpy) 2 ](PF 6 ) 2 ( 2 ) and [Ru(L3)(bpy) 2 ](PF 6 ) 2 ( 3 ), respectively. The three complexes have been characterized by UV/Vis and luminescence spectroscopy. The crystal structures of 1 · EtOH, 2 · EtOH and 3 have been determined by single-crystal X-ray diffraction.
Type of Medium:
Online Resource
ISSN:
1865-7117
,
0932-0776
DOI:
10.1515/znb-2019-0233
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
2020
detail.hit.zdb_id:
2078109-X
detail.hit.zdb_id:
124635-5
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