Magnetic Properties of 4- and 5-Methylpyrimidine-Bridged Copper(II) Complexes

References

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• 1a: tetragonal, 141/a a=19.253(8), c=22.380(9) Å, V=8295(3) Å3Z=16, Dcalc=1.831 g/cm3R=0.052, Rw=0.047 for 4873 unique reflections. 2a: triclinic, P1, a=11.728 (4), b=13.621(5), c=10.919(2) Å, a=94.46(3), β=113.78, γ=65.02°, V=1437.8(8) Å3Z=1, Dcalc =1.872 g/cm3R=0.051, Rw=0.045 for 6586 unique reflections.
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• The magnetic measurements of typical S = 1/2 paramagnets 4a and 4b indicated g = 2.23 and 2.24 respectively, and also those of polynuclear complexes (1 and related compounds [7]) revealed that g values appeared around 2.2. See also ref [14]
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