| N1—C2 | 1.340 (7) | C3—H3A | 0.9300 |
| N1—C6 | 1.352 (8) | C4—C5 | 1.389 (8) |
| N1—H1A | 0.8600 | C4—H4A | 0.9300 |
| I1—Br1 | 2.6836 (10) | C5—C6 | 1.334 (8) |
| I1—Br2 | 2.7119 (10) | C5—C7 | 1.496 (8) |
| N2—C2 | 1.330 (7) | C6—H6A | 0.9300 |
| N2—H2A | 0.8600 | C7—H7A | 0.9600 |
| N2—H2B | 0.8600 | C7—H7B | 0.9600 |
| C2—C3 | 1.402 (8) | C7—H7C | 0.9600 |
| C3—C4 | 1.348 (8) | ||
| C2—N1—C6 | 123.5 (5) | C3—C4—H4A | 118.0 |
| C2—N1—H1A | 118.3 | C5—C4—H4A | 118.0 |
| C6—N1—H1A | 118.3 | C6—C5—C4 | 115.2 (6) |
| Br1—I1—Br2 | 177.67 (2) | C6—C5—C7 | 121.3 (6) |
| C2—N2—H2A | 120.0 | C4—C5—C7 | 123.5 (5) |
| C2—N2—H2B | 120.0 | C5—C6—N1 | 122.1 (6) |
| H2A—N2—H2B | 120.0 | C5—C6—H6A | 118.9 |
| N2—C2—N1 | 120.1 (6) | N1—C6—H6A | 118.9 |
| N2—C2—C3 | 123.6 (6) | C5—C7—H7A | 109.5 |
| N1—C2—C3 | 116.3 (6) | C5—C7—H7B | 109.5 |
| C4—C3—C2 | 118.9 (6) | H7A—C7—H7B | 109.5 |
| C4—C3—H3A | 120.5 | C5—C7—H7C | 109.5 |
| C2—C3—H3A | 120.5 | H7A—C7—H7C | 109.5 |
| C3—C4—C5 | 123.9 (6) | H7B—C7—H7C | 109.5 |
| C6—N1—C2—N2 | −179.2 (6) | C3—C4—C5—C6 | 0.0 (10) |
| C6—N1—C2—C3 | 2.4 (9) | C3—C4—C5—C7 | −179.7 (6) |
| N2—C2—C3—C4 | −179.7 (6) | C4—C5—C6—N1 | 1.0 (10) |
| N1—C2—C3—C4 | −1.4 (9) | C7—C5—C6—N1 | −179.3 (6) |
| C2—C3—C4—C5 | 0.3 (10) | C2—N1—C6—C5 | −2.3 (10) |