| O1—C2 | 1.246 (3) | O3—C11 | 1.267 (3) |
| O2—C2 | 1.280 (3) | O3—H3A | 0.8200 |
| O2—H2A | 0.8200 | O4—C11 | 1.272 (3) |
| N1—N2 | 1.340 (3) | N3—N4 | 1.337 (3) |
| N1—C5 | 1.363 (4) | N3—C14 | 1.359 (4) |
| N1—C1 | 1.446 (3) | N3—C10 | 1.458 (3) |
| N2—C3 | 1.340 (3) | N4—C12 | 1.331 (3) |
| C1—H1A | 0.9600 | C10—H10A | 0.9600 |
| C1—H1B | 0.9600 | C10—H10B | 0.9600 |
| C1—H1C | 0.9600 | C10—H10C | 0.9600 |
| C2—C3 | 1.461 (4) | C11—C12 | 1.447 (3) |
| C3—C4 | 1.411 (3) | C12—C13 | 1.427 (4) |
| C4—C6 | 1.400 (4) | C13—C14 | 1.395 (4) |
| C4—C5 | 1.411 (3) | C13—C18 | 1.402 (4) |
| C5—C9 | 1.410 (4) | C14—C15 | 1.409 (4) |
| C6—C7 | 1.361 (4) | C15—C16 | 1.331 (5) |
| C6—H6A | 0.9300 | C15—H15A | 0.9300 |
| C7—C8 | 1.409 (4) | C16—C17 | 1.425 (5) |
| C7—H7A | 0.9300 | C16—H16A | 0.9300 |
| C8—C9 | 1.353 (4) | C17—C18 | 1.374 (4) |
| C8—H8A | 0.9300 | C17—H17A | 0.9300 |
| C9—H9A | 0.9300 | C18—H18A | 0.9300 |
| C2—O2—H2A | 109.5 | C11—O3—H3A | 109.5 |
| N2—N1—C5 | 112.2 (2) | N4—N3—C14 | 112.5 (2) |
| N2—N1—C1 | 120.8 (3) | N4—N3—C10 | 119.8 (2) |
| C5—N1—C1 | 127.0 (3) | C14—N3—C10 | 127.7 (2) |
| C3—N2—N1 | 105.7 (2) | C12—N4—N3 | 105.8 (2) |
| N1—C1—H1A | 109.5 | N3—C10—H10A | 109.5 |
| N1—C1—H1B | 109.5 | N3—C10—H10B | 109.5 |
| H1A—C1—H1B | 109.5 | H10A—C10—H10B | 109.5 |
| N1—C1—H1C | 109.5 | N3—C10—H10C | 109.5 |
| H1A—C1—H1C | 109.5 | H10A—C10—H10C | 109.5 |
| H1B—C1—H1C | 109.5 | H10B—C10—H10C | 109.5 |
| O1—C2—O2 | 123.5 (2) | O3—C11—O4 | 122.9 (2) |
| O1—C2—C3 | 121.3 (2) | O3—C11—C12 | 117.7 (2) |
| O2—C2—C3 | 115.1 (2) | O4—C11—C12 | 119.3 (2) |
| N2—C3—C4 | 111.7 (2) | N4—C12—C13 | 111.2 (2) |
| N2—C3—C2 | 119.6 (2) | N4—C12—C11 | 120.8 (2) |
| C4—C3—C2 | 128.6 (2) | C13—C12—C11 | 128.0 (2) |
| C6—C4—C3 | 137.0 (2) | C14—C13—C18 | 119.8 (2) |
| C6—C4—C5 | 119.3 (2) | C14—C13—C12 | 103.7 (2) |
| C3—C4—C5 | 103.7 (2) | C18—C13—C12 | 136.5 (3) |
| N1—C5—C9 | 132.3 (3) | N3—C14—C13 | 106.8 (2) |
| N1—C5—C4 | 106.6 (2) | N3—C14—C15 | 130.8 (3) |
| C9—C5—C4 | 121.1 (3) | C13—C14—C15 | 122.3 (3) |
| C7—C6—C4 | 118.6 (3) | C16—C15—C14 | 117.2 (3) |
| C7—C6—H6A | 120.7 | C16—C15—H15A | 121.4 |
| C4—C6—H6A | 120.7 | C14—C15—H15A | 121.4 |
| C6—C7—C8 | 121.9 (3) | C15—C16—C17 | 121.8 (3) |
| C6—C7—H7A | 119.1 | C15—C16—H16A | 119.1 |
| C8—C7—H7A | 119.1 | C17—C16—H16A | 119.1 |
| C9—C8—C7 | 121.0 (3) | C18—C17—C16 | 121.5 (3) |
| C9—C8—H8A | 119.5 | C18—C17—H17A | 119.2 |
| C7—C8—H8A | 119.5 | C16—C17—H17A | 119.2 |
| C8—C9—C5 | 118.1 (3) | C17—C18—C13 | 117.3 (3) |
| C8—C9—H9A | 121.0 | C17—C18—H18A | 121.3 |
| C5—C9—H9A | 121.0 | C13—C18—H18A | 121.3 |
| C5—N1—N2—C3 | 1.9 (3) | C14—N3—N4—C12 | −1.7 (3) |
| C1—N1—N2—C3 | 179.4 (3) | C10—N3—N4—C12 | 177.1 (2) |
| N1—N2—C3—C4 | −2.2 (3) | N3—N4—C12—C13 | 0.8 (3) |
| N1—N2—C3—C2 | −179.6 (2) | N3—N4—C12—C11 | 179.9 (2) |
| O1—C2—C3—N2 | −4.2 (4) | O3—C11—C12—N4 | 175.5 (2) |
| O2—C2—C3—N2 | 178.0 (2) | O4—C11—C12—N4 | −2.5 (4) |
| O1—C2—C3—C4 | 179.0 (3) | O3—C11—C12—C13 | −5.5 (4) |
| O2—C2—C3—C4 | 1.1 (4) | O4—C11—C12—C13 | 176.5 (3) |
| N2—C3—C4—C6 | −178.1 (3) | N4—C12—C13—C14 | 0.4 (3) |
| C2—C3—C4—C6 | −1.0 (5) | C11—C12—C13—C14 | −178.7 (3) |
| N2—C3—C4—C5 | 1.6 (3) | N4—C12—C13—C18 | 178.5 (3) |
| C2—C3—C4—C5 | 178.7 (3) | C11—C12—C13—C18 | −0.6 (5) |
| N2—N1—C5—C9 | 178.6 (3) | N4—N3—C14—C13 | 2.0 (3) |
| C1—N1—C5—C9 | 1.4 (5) | C10—N3—C14—C13 | −176.7 (3) |
| N2—N1—C5—C4 | −1.0 (3) | N4—N3—C14—C15 | 179.1 (3) |
| C1—N1—C5—C4 | −178.2 (3) | C10—N3—C14—C15 | 0.4 (5) |
| C6—C4—C5—N1 | 179.4 (2) | C18—C13—C14—N3 | −179.9 (2) |
| C3—C4—C5—N1 | −0.4 (3) | C12—C13—C14—N3 | −1.4 (3) |
| C6—C4—C5—C9 | −0.3 (4) | C18—C13—C14—C15 | 2.7 (4) |
| C3—C4—C5—C9 | 179.9 (2) | C12—C13—C14—C15 | −178.8 (3) |
| C3—C4—C6—C7 | 179.1 (3) | N3—C14—C15—C16 | −179.3 (3) |
| C5—C4—C6—C7 | −0.5 (4) | C13—C14—C15—C16 | −2.6 (4) |
| C4—C6—C7—C8 | 1.2 (4) | C14—C15—C16—C17 | 1.6 (5) |
| C6—C7—C8—C9 | −1.1 (5) | C15—C16—C17—C18 | −0.9 (5) |
| C7—C8—C9—C5 | 0.3 (5) | C16—C17—C18—C13 | 0.9 (5) |
| N1—C5—C9—C8 | −179.2 (3) | C14—C13—C18—C17 | −1.8 (4) |
| C4—C5—C9—C8 | 0.4 (4) | C12—C13—C18—C17 | −179.7 (3) |