Research Article

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 2

Hydrogen-bonding geometry for 3 (Å and °).

D-H…Ad(D-H) (Å)d(H…A) (Å)d(D…A) (Å)<(DHA) (°)

O1-H1O1…O30.943(1)1.847(2)2.679(2)145.61(9)
O2-H2O2…O10.945(1)1.987(1)2.919(2)168.17(9)

Symmetry code 1/2 − x, 1/2 + y, 1/2 − z.