75792-73-3Relevant academic research and scientific papers
Six New Complexes Based on Substituted Pyridazine Ligands: Structures and Luminescent Properties
Zhou, Sheng-Bin,Du, Ceng-Ceng,Wang, Xin-fang,Han, Ying-Zhi,Dong, Jun-Liang,Wang, Duo-Zhi
, p. 215 - 225 (2017/09/07)
Abstract: Three structurally related ligands 3-chloro-6-(benzoimidazol-1-yl)pyridazine (L1), 3-chloro-6-(1,2,4-triazol-1-yl)pyridazine (L2) and 3,6-bis(imidazol-1-yl)pyridazine (L3) were designed and synthesized, and six new Zn(II), Co(II), Cu(II) and Cd(II) complexes, namely, [M(L1)2Cl2] [M = Zn (1) and Co (2)], [Cu(L2)2(NO3)2(H2O)] (3), [Cu(L2)2Cl2]∞ (4), [CuL3(CH3COO)2]∞ (5) and [CdL3(SCN)2]∞ (6) were synthesized and characterized by elemental analyses, IR spectra as well as single-crystal X-ray diffraction analysis. The analysis reveals that complexes 1, 2 and 3 have a mononuclear structure, 1 and 2 have a similar structure. Complex 3 features a 1D structure with intermolecular O–H?O hydrogen bonding interactions. Complex 4 shows a 1D chain structure with bridging Clˉ ions. Complex 5 exhibits a 1D ladder structure. The 2D framework of 6 features are rectangular grid with a (4, 4) topology. Additionally, photoluminescence properties of ligands L1, L3 and complexes 1, 2 and 6 have been studied and discussed. Graphical Abstract: Six new metal-organic complexes were synthesized and structurally characterized, complexes 1, 2 and 3 have a mononuclear structure, complexes 4 and 5 show 1D chain structure, the 2D framework of 6 has a rectangle grid with a (4, 4) topology, moreover, photoluminescence properties of ligands L1, L3 and complexes 1, 2 and 6 have been studied and discussed. [Figure not available: see fulltext.].
Synthesis and antihypertensive activity of new 6-heteroaryl-3-hydrazinopyridazine derivatives
Steiner,Gries,Lenke
, p. 59 - 63 (2007/10/02)
The synthesis and pharmacological activity of new 6-heteroaryl-3-hydrazinopyridazines with antihypertensive action are described. The introduction of pyrrole, pyrazole, imidazole, triazole, tetrazole, thiophene, indole, and carbazole heterocyclic rings into the 6 position of the pyridazine nucleus has been carried out by three different methods of synthesis. The hypotensive action has been examined on normotensive and spontaneously hypertensive rats by comparison with dihydralazine (I). 6-Imidazol-1-yl derivatives have proved particularly active. Of these derivatives 3-hydrazino-6-(2-methylimidazol-1-yl)pyridazine (7c) achieves 4.9 times the activity of dihydralazine when administered orally to spontaneously hypertensive rats. The LD50 values of 7c and dihydralazine are very similar.
