| C1—N1 | 1.342 (2) | C4—H4 | 0.951 (16) | 
| C1—C2 | 1.3795 (19) | C5—N1 | 1.336 (2) | 
| C1—H1 | 0.955 (16) | C5—H5 | 0.931 (18) | 
| C2—C3 | 1.3948 (19) | C6—O1 | 1.2443 (17) | 
| C2—H2 | 0.918 (16) | C6—N2 | 1.3271 (18) | 
| C3—C4 | 1.3964 (18) | N1—H1A | 0.894 (14) | 
| C3—C6 | 1.5141 (18) | N2—H2A | 0.876 (16) | 
| C4—C5 | 1.3858 (19) | N2—H2B | 0.871 (18) | 
| N1—C1—C2 | 119.73 (14) | N1—C5—C4 | 119.84 (14) | 
| N1—C1—H1 | 120.1 | N1—C5—H5 | 120.1 | 
| C2—C1—H1 | 120.1 | C4—C5—H5 | 120.1 | 
| C1—C2—C3 | 119.26 (13) | O1—C6—N2 | 123.66 (12) | 
| C1—C2—H2 | 120.4 | O1—C6—C3 | 118.43 (12) | 
| C3—C2—H2 | 120.4 | N2—C6—C3 | 117.91 (12) | 
| C2—C3—C4 | 119.39 (12) | C5—N1—C1 | 122.81 (12) | 
| C2—C3—C6 | 117.34 (11) | C5—N1—H1A | 118.6 | 
| C4—C3—C6 | 123.25 (12) | C1—N1—H1A | 118.6 | 
| C5—C4—C3 | 118.94 (14) | C6—N2—H2A | 117.5 (12) | 
| C5—C4—H4 | 120.5 | C6—N2—H2B | 125.3 (12) | 
| C3—C4—H4 | 120.5 | H2A—N2—H2B | 116.7 (16) |