Table 1. Selected geometric parameters (Å, °).
| Na1—O6 | 2.2815 (17) | O3—N1 | 1.218 (3) |
| Na1—O5 | 2.3191 (18) | O4—N1 | 1.218 (2) |
| Na1—O5i | 2.3215 (17) | O5—C14 | 1.251 (3) |
| Na1—O8 | 2.347 (2) | O6—C8 | 1.237 (3) |
| Na1—O1ii | 2.3700 (19) | O7—C10 | 1.245 (3) |
| Na1—Na1i | 3.3927 (18) | O8—C15 | 1.443 (3) |
| S1—O2 | 1.4386 (18) | N1—C3 | 1.466 (3) |
| S1—O1 | 1.4445 (18) | C4—C8 | 1.528 (3) |
| S1—C7 | 1.754 (3) | C8—C9 | 1.440 (3) |
| S1—C1 | 1.773 (2) | C9—C14 | 1.442 (3) |
| O6—Na1—O5 | 73.86 (6) | O1ii—Na1—Na1i | 120.78 (6) |
| O6—Na1—O5i | 159.89 (7) | O2—S1—O1 | 118.31 (11) |
| O5—Na1—O5i | 86.04 (6) | O2—S1—C7 | 108.75 (13) |
| O6—Na1—O8 | 93.06 (7) | O1—S1—C7 | 108.40 (12) |
| O5—Na1—O8 | 122.94 (7) | S1—O1—Na1ii | 144.85 (11) |
| O5i—Na1—O8 | 98.52 (7) | C14—O5—Na1 | 136.71 (15) |
| O6—Na1—O1ii | 90.74 (7) | C14—O5—Na1i | 129.29 (15) |
| O5—Na1—O1ii | 124.59 (7) | Na1—O5—Na1i | 93.96 (6) |
| O5i—Na1—O1ii | 100.42 (7) | C8—O6—Na1 | 136.56 (15) |
| O8—Na1—O1ii | 110.49 (7) | C15—O8—Na1 | 109.47 (15) |
| O6—Na1—Na1i | 116.90 (6) | O3—N1—O4 | 123.5 (2) |
| O5—Na1—Na1i | 43.05 (4) | O3—N1—C3 | 118.18 (19) |
| O5i—Na1—Na1i | 42.99 (4) | O4—N1—C3 | 118.3 (2) |
| O8—Na1—Na1i | 118.24 (6) |
Symmetry codes: (i)
; (ii)
.