Manganese(II) octabutoxynaphthalocyanine and its ferrimagnet electron-transfer salt with TCNE, D. K. Rittenberg, L. Baars-Hibbe, A. Böhm, J. S. Miller, J. Mater. Chem.10, 241-244 (2000).

The magnetic susceptibility (c) of 1,6,10,15,19,25,28,32-octa-n-butoxynaphthalocyaninatomanganese( III) tetracyanoethanide can be fit to a Curie-Weiss expression with a q = 54 K for (T > 150 K), and the cT(T) data is consistent with linear chains and can be fit to a Seiden expression for alternating S = 2 and S= 1/2 antiferromagnetically coupled spin sites with a coupling constant, J_intra/k_B (H = -2JS_a•S_b) of -145 K. Hysteresis with a coercive field of 1.6 kOe was observed at 2 K. The magnetic ordering temperature, T_c, determined from both the maximum in the 10 Hz ac susceptibility, c'(T), and the irreversibility of low field zero field cooled/field cooled was determined to be 9.0 K. This is the first example of a metallophthalocyanine electron transfer salt that magnetically orders.