1:1:1:2 Cu(NO 3 )·2.5H 2 O/H 2 L'/ bpy/LiOH·H 2 O reaction system in MeCN/H 2 O. The maleamate(-1) ligand presents the less common η 1 :μ 2 coordination mode in the cations of 1, 1·2H 2 O and 2. The maleate(-2) ligand exhibits the η 1 :η 1 :η 1 :η 1 :η 1 :μ 3 coordination mode in the [Cu II 4 ] cations of 3·2H 2 O and 5·4H 2 O and in the [Cu II 2Li I 2 ] heterometallic cation of 2. The crystal structures
MeCN/H 2 Owas中1:2:1:2 Cu(NO 3 )·2.5H 2 O/H 2 L/bpy/LiOH·H 2 O(H 2 L =
马来酸)反应体系的系统研究执行。化合物[Cu 2 (HL) 2 -(bpy) 2 (H,O) 2 ](NO 3 ) 2 (1), [Cu 2 (HL) 2 (bpy) 2 (H 2 O) 2 ](NO 3 ) 2 · 2H 2 O (1.2H 2 O), [Cu 2 Li 2 (L') 2 (bpy) 2 (H 2 O) 6 ][Cu 2 (HL) 2 (bpy) 2 -(H 2 O) 2 ](NO 3 ) 4 (2), [Cu 4 (L') 2 (NO 3 ) 2 (bpy) 4 (H 2 O) 2 ](NO 3 ) 2 ·2H 2 O (3·2H) 2 O) 和 [Cu(L')(bpy)] n ·2nH 2 O (4·2nH 2 O) 被分离出来,这取决于所采用的结晶方法。配合物