Journal
POLYHEDRON
Volume 20, Issue 19, Pages 2531-2536Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0277-5387(01)00858-0
Keywords
copper complexes; pyrazole complexes; crystal structures
Categories
Ask authors/readers for more resources
Reaction of the ligands 3-phenyl-5-(2-pyridyl)pyrazole (HL0) and 3-phenyl-5-(6-methyl-(2-pyridyl))pyrazole (HL1) with Cu(NO3)(2). 3H(2)O and CuX2. xH(2)O (X = Cl, Br) gives complexes with stoichiometry Cu(HL0)(2)X-2. xH(2)O, Cu(HL1)(2)X-2. EtOH, Cu(HL)X-2, Cu(HL)(2)(NO3)(2). xH(2)O (HL = HL0, HL1) and Cu(HL0)(NO3)(2). 2H(2)O. The new complexes were characterised by elemental analyses, conductivity measurements and infrared and electronic spectroscopy. The crystal and molecular structure of [Cu(HL0)(NO3)(H2O)(2)](NO3) consists of discrete cations and NO3 anions linked by hydrogen bonds. The cation complex [Cu(HL0)(NO3)(H2O2)(2)](+) contains a copper(II) with a distorted tetragonal pyramid geometry (tau = 0.094), with a H2O ligand occupying the apical site. The penta-coordinated metal atom is bonded to one pyridinic nitrogen, one pyrazolic nitrogen, one nitrate and two water molecules. The ligand HL0 is not completely planar. (C) 2001 Elsevier Science Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available