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vol.49 número4ARSENIC SPECIATION IN ENVIRONMENTAL SAMPLES OF A MINING IMPACTED SECTOR OF CENTRAL CHILEERROR SIMULATION IN THE DETERMINATION OF THE FORMATION CONSTANTS OF POLYMER-METAL COMPLEXES (PMC) BY THE LIQUID-PHASE POLYMER-BASED RETENTION (LPR) TECHNIQUE índice de autoresíndice de materiabúsqueda de artículos
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Journal of the Chilean Chemical Society

versión On-line ISSN 0717-9707

Resumen

ATRIA, A.M. et al. PREPARATION, STRUCTURE AND PROPERTIES OF BIS (M2-CHLORO)-(NITRATO-O)-(2,2'-BIPYRIDINE-N.N')­COPPER(II):[Cu(2,2'-BP)Cl NO3]2 . J. Chil. Chem. Soc. [online]. 2004, vol.49, n.4, pp.341-344. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072004000400013.

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, a =112.181(2)o, b = 102.155(2)o, g = 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

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