Table 2. Comparison of N⋯H—C contacts (Å, °) observed in 1 and selected other pyrazoles.

Compound	d(N⋯H)	∠(N⋯H—C)
1	2.56	179
ICEDUQ a	2.852 (19)	177.3 (12)
LUNYID b	2.66	154
KITNOR c	2.458 (16)	156.2 (13)

References: (a) Patra et al. (2004 ▸); (b) Benisvy et al. (2009 ▸); (c) Kidwai et al. (2008 ▸).