| CIF chemical formula sum | C4 H4 Cl Cu I N3 | — | — | Table Exact Reported | CIF text lines 44-46 · CIF data block |
| LT long Cu...Cu distance | 3.332 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| RT long Cu...Cu distance | 3.360 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| LT short Cu...Cu distance | 2.688 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| RT short Cu...Cu distance | 2.696 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| LT Cu-I rail distance | 2.634 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| RT Cu-I rail distance | 2.632 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| LT Cu-I rung distance | 2.627 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| RT Cu-I rung distance | 2.666 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| LT Cu-N distance | 2.038 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| RT Cu-N distance | 2.042 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| Formula weight | 319.99 | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| LT H-bonding distance | 2.162 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| RT H-bonding distance | 2.196 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| LT beta angle | 94.13(2) deg | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| LT unit-cell a | 4.1143(15) A | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| LT unit-cell b | 16.538(5) A | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| LT unit-cell c | 11.100(3) A | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| LT unit-cell volume | 753.3(4) A^3 | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| LT pi...pi interaction distance | 3.361 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| RT pi...pi interaction distance | 3.385 A | — | — | SI Table Exact Reported | SI p.3 · S1.1 Single crystal X-Ray diffraction · Table S2 |
| RT beta angle | 94.769(3) deg | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| RT unit-cell a | 4.1299(2) A | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| RT unit-cell b | 16.7869(6) A | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| RT unit-cell c | 11.0839(4) A | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| RT unit-cell volume | 765.77(5) A^3 | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| Space group | monoclinic P21/n | — | — | SI Table Exact Reported | SI p.2 · S1.1 Single crystal X-Ray diffraction · Table S1 |
| Tilt-angle change RT-LT | 8.77 degree | — | — | SI Table Exact Reported | SI p.4 · S1.1 Single crystal X-Ray diffraction · Table S3 |
| Twist-angle change RT-LT | 2.52 degree | — | — | SI Table Exact Reported | SI p.4 · S1.1 Single crystal X-Ray diffraction · Table S3 |