Table 1. Hydrogen-bond geometry (, ).
Cg1 is the centroid of pyridine ring N3/C2C6.
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| N2H2N1i | 0.86 | 2.28 | 3.0168(15) | 145 |
| C35H35Cg1ii | 0.93 | 2.99 | 3.5559(14) | 121 |
Symmetry codes: (i) 
; (ii) 
.
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