245658-92-8Relevant academic research and scientific papers
8,16,24,32-tetramethoxy[2.2.2.2]metacyclophane-1,9,17,25-tetrayne: A novel ionophore having a preorganized but unexpectedly flexible cavity
Kawase, Takeshi,Hosokawa, Youichi,Kurata, Hiroyuki,Oda, Masaji
, p. 745 - 746 (1999)
The title cyclophane has a preorganized cavity with about 1.2 A in diameter surrounded by four oxygen atoms (X-ray analysis); however, solvent extraction experiments using alkali metal picrates revealed the unexpectedly flexible nature of the cavity that forms 1:1 complexes with various alkali metal ions with considerably large association constants.
