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A tetracopper(II) complex with N,N′-bis(picolinoyl)hydrazine by Swamy Maloth; Samudranil Pal is a Chemistry article available to read on EtoBox.
What is A tetracopper(II) complex with N,N′-bis(picolinoyl)hydrazine about?
Synthesis, physical properties and X-ray structure of a hydrated tetranuclear copper(II) complex The centrosymmetric complex has two types of copper(II) centres with distorted square-pyramidal N 2 O 3 coordination spheres. The dinucleating trans planar diph 2À ligands are parallel to each other and act as N 2 O-donor to one metal centre and N 2 -donor to the other metal centre. The complex has a rectangular {Cu 4 (l-N-N) 2 (l-OH 2 ) 2 } core with CuÁÁÁCu distances as 4.834(1) and 3.762(1) Å. Solid state as well as solution electronic spectra show several transitions in the wavelength range 700-280 nm. The room temperature (298 K) solid state magnetic moment is 3.55 l B . The powder EPR spectra at 298 and 130 K are very similar and axial (g k = 2.25 and g \ = 2.08) in character.
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- Author
- Swamy Maloth; Samudranil Pal
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0020-1693)
- Published
- 2011
- Language
- EN
- Field
- Chemistry (Physical Sciences)