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. 2010 Feb 3;66(Pt 3):o124–o127. doi: 10.1107/S0108270110003641

Table 1. Selected bond lengths (Å), including those affected by the anomeric effect, in glycosyl halide derivatives and penta­acetyl-α-D-gluopyran­ose.

graphic file with name c-66-0o124-scheme2.jpg

X R C5—O5 O5—C1 C1—X C1—C2 C2—C3 C3—C4 C4—C5
Bra Ac 1.458 (14) 1.347 (15) 2.002f 1.572 (16)g 1.531 (16)g 1.600 (16)g 1.500 (16)g
Clb Ac 1.445f 1.383f 1.777f        
Fc Ac 1.4477 (18) 1.381 (2) 1.3981 (19) 1.514 (3) 1.512 (2) 1.515 (2) 1.516 (2)
Fd (Ac)4Glc 1.444 (3) 1.381 (3) 1.393 (3) 1.513 (4) 1.527 (4) 1.532 (3) 1.529 (4)
OGlyd (Ac)4Glc 1.433 (3) 1.420 (3) 1.409 (3) 1.514 (4) 1.517 (4) 1.514 (3) 1.532 (4)
OAce Ac 1.422 (4) 1.403 (4) 1.431 (4) 1.507 (4) 1.524 (4) 1.504 (4) 1.534 (4)

Notes: (a) Takai et al. (1976 ▶); (b) James & Hall (1969 ▶); (c) this work, compound (I); (d) this work, compound (II); (e) Jones et al. (1982 ▶); (f) s.u. values are not available; (g) s.u. values are taken from a mean value.