0000000000377187
AUTHOR
De Munno G
Synthesis Crystal Structure and Magnetic Properties of the Trinuclear Nickel(II) Complex Bis[(μ-thiocyanato-N)bis(μ-pyridazine-N1,N2)bis(thiocyanato-N)(pyridazine-N1)nickel(II)- N,N1,N1‘]nickel(II)
Unusual single N-bridging thiocyanato and double pyridazine (pdz) bridges occur in the linear trinuclear nickel(II) complex of formula [Ni3(pdz)6(NCS)6]. The compound exhibits a quasi Curie law behavior, the antiferromagnetic coupling through the double 1,2-diazine links being nearly compensated by the ferromagnetic exchange through the single N-bridging thiocyanato.
Novel Three-Dimensional Cage Assembly of amgr;(4)-Carbonato-Bridged Cobalt(II) Compound [Co(2)(bpm)(H(2)O)(2)(CO(3))(OH)]NO(3).4H(2)O.
The new three-dimensional cobalt(II) complex of formula [Co2(bpm)(H2O)2(CO3)(OH)]NO3·4H2O (1) is obtained from aqueous solutions containing cobalt(II) nitrate hexahydrate, 2,2‘-bipyrimidine (bpm), ...
Syntheses, Crystal Structures, and Magnetic Properties of the Oxalato-Bridged Mixed-Valence Complexes [FeII(bpm)3]2[FeIII2(ox)5]·8H2O and FeII(bpm)3Na(H2O)2Fe(ox)3·4H2O (bpm = 2,2‘-Bipyrimidine)
The preparation and crystal structures of two oxalato-bridged FeII-FeIII mixed-valence compounds, [FeII(bpm)3]2[FeIII2(ox)5].8H2O (1) and FeII(bpm)3Na(H2O)2FeIII(ox)(3).4H2O (2) (bpm = 2,2'-bipyrimidine; ox = oxalate dianion) are reported here. Complex 1 crystallizes in the triclinic system, space group P1, with a = 10.998(2) A, b = 13.073(3) A, c = 13.308(3) A, alpha = 101.95(2) degrees, beta = 109.20(2) degrees, gamma = 99.89(2) degrees, and Z = 1. Complex 2 crystallizes in the monoclinic system, space group P2(1)/c, with a = 12.609(2) A, b = 19.670(5) A, c = 15.843(3) A, beta = 99.46(1) degrees, and Z = 4. The structure of complex 1 consists of centrosymmetric oxalato-bridged dinuclear h…