Representations of the X-ray structures of 1 (left) and 2 (right) as 50% thermal elliposoids and hydrogen atoms omitted for clarity. Selected interatomic distances (Å) and angles (deg) are as follows. 1: Cu1-N1, 1.9676(19); Cu1-O1, 1.9904(19); Cu1-N2, 2.107(2); Cu1-O3, 2.1815(19); O1-C1, 1.261(3); C2-O3, 1.223(3); C2-C1, 1.545(3); O2-C1, 1.230(3); N1-Cu1-O1, 137.52(8); N1-Cu1-N2, 79.99(8); O1-Cu1-N2, 115.31(8); N1-Cu1-O3, 134.09(8); O1-Cu1-O3, 79.18(7); N2-Cu1-O3, 112.07(8). 2: Cu1-O1, 1.9042(16); Cu1-N1, 1.9831(19); Cu1-N2, 2.1113(19); Cu1-O2, 2.888(2); C26-O2, 1.216(3); C26-O1, 1.279(3); C26-C27, 1.529(3); O3-C27, 1.216(3); O1-Cu1-N1, 154.80(8); O1-Cu1-N2, 123.60(8); N1-Cu1-N2, 80.74(7); O2-C26-O1, 127.2(2).