Аннотация:
The first organic magnet based on a high-nitrogen framework of pyrazine-fused furazans Na(L•−)(H2O)3 was found. A quantum-chemical study of M(L•−)(H2O)n, where M = Li, Na, K, Rb, NH4, revealed that exchange coupling energy between the neighboring radical anions proved highly sensitive to the motion of one L•− relative to another.