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. Author manuscript; available in PMC: 2009 Jan 9.
Published in final edited form as: J Am Chem Soc. 2005 Jan 19;127(2):636–642. doi: 10.1021/ja044936+

Table 2.

Estimated Overall Span Lengths for 1-7

compd No. spacer chain length estimated length (Å)a
1 C8 28.3
2 C10 33.3
3 C12 38.4
4 C14 43.4
5 C16 48.5
6 C18 53.5
7 C20 58.6
a

See text for method used.