Synthesis, Structure, and Cyclocondensation of the 4,4,4-Trifluoro-3,3-dihydroxy-2-methyl-1-(thien-2-yl)-1-butanone with Hydroxylamine and Hydrazine

Table 4

Hydrogen-bonding geometry for 5 (Å and °).

D-H…A	d(D-H)	d(H…A)	d(D…A)	<(DHA)
N2-H2…N1	0.8200(0)	2.195(0)	2.872(3)	140.00(0)