Preparation, structure and properties of bis (m2-chloro)-(nitrato-o)-(2,2'-bipyridine-n.N')copper(ii): [cu(2,2'-bp)cl no3]2

• A.M. ATRIA ^[1] ; P CORTÉS ^[1] ; L ACEVEDO ^[1] ; R TRUJILLO ^[1] ; J MANZUR ^[1] ; O PEÑA ^[2] ; R BAGGIO ^[3]
  1. [1] Universidad de Chile

     Universidad de Chile

     Santiago, Chile

     
  2. [2] Université de Rennes I CNRS Institut de Chimie de Rennes
  3. [3] Comisión de Energía Atómica Departamento de Física

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• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 49, Nº. 4, 2004, págs. 341-344
• Idioma: inglés
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  • The crystal structure of the compound with empirical formula [Cu (2, 2'-BP)Cl NO3]2 (BP: 2,2'-bipyridine) (1) has been determined. Crystals are triclinic, space group P-1 with a = 7.5152(12) Å, b = 9.2531(14) Å, c = 10.2834(16) Å, alpha =112.181(2)º, beta = 102.155(2)º, gamma = 105.617(2)º. The copper atom displays a (4+1) square pyramidal coordination, with the four in-plane bonds provided by one chloride ion, two nitrogen atoms from the 2,2'-bipyridine molecule and one oxygen from the nitrate group. The apical position corresponds to a chloride ion Cl(1') from a centrosymmetric neighboring moiety. The two symmetry related Cl ions bridge two copper atoms, generating a dimeric unit (Cu(1)-Cl(1) = 2.2726(11) Å, Cu(1)-Cl (1') = 2.7093(13) Å). Magnetic susceptibility measurements showed a weak ferromagnetic interaction between dimers