34. Wang H-X, Hu S-Z, Shi Q, Chen C-F (2016) Complexation between a triptycene-derived
oxacalixarene and π-extended viologens: linker-length-dependent orientation of the macrocycles in pseudo[3]rotaxanes. Org Biomol Chem 14:10481–10488
35. Xue M, Su Y-S, Chen C-F (2010) Isomeric squaraine-based [2]pseudorotaxanes and [2]
rotaxanes: synthesis, optical properties, and their tubular structures in the solid state. Chem
Eur J 16:8537–8544
36. Wang H-X, Meng Z, Xiang J-F, Xia Y-X, Sun Y, Hu S-Z, Chen H, Yao J, Chen C-F (2016)
Guest-dependent directional complexation based on triptycene-derived oxacalixarene: formation of oriented rotaxanes. Chem Sci 7:469–474
37. Xue M, Chen C-F (2011) Aromatic single-walled organic nanotubes self-assembled from N(H)bridged azacalix[2]triptycene[2]pyridine. Chem Commun 47:2318–2320
38. Wierzbicki M, Jedrzejewska H, Szumna A (2016) Chiral calixarenes and resorcinarenes. In:
Calixarenes and beyond. Springer, Cham, pp 13–42
39. Zheng Y-S, Luo J (2011) Inherently chiral calixarenes: a decade’s review. J Incl Phenom
Macrocycl Chem 71:35–56
40. Xu Z-X, Zhang C, Zheng Q-Y, Chen C-F, Huang Z-T (2007) A new approach to enantiopure
inherently chiral calix[4]arenes: determination of their absolute configurations. Org Lett
9:4447–4450
41. Ogoshi T, Akutsu T, Yamafuji D, Aoki T, Yamagishi T-a (2013) Solvent- and achiral-guesttriggered chiral inversion in a planar chiral pseudo[1]catenane. Angew Chem Int Ed
52:8111–8115
42. Zhang G-W, Li P-F, Meng Z, Wang H-X, Han Y, Chen C-F (2016) Triptycene-based chiral
macrocyclic hosts for highly enantioselective recognition of chiral guests containing a trimethylamino group. Angew Chem Int Ed 55:5304–5308
43. Wang J-Q, Li J, Zhang G-W, Chen C-F (2018) An efficient route to enantiopure (O-methyl) 6 -
2,6-helic[6]arenes: synthesis of hexabromo-substituted helic[6]arene derivatives and their
Suzuki-coupling reactions. J Org Chem 83:11532–11540
44. Zhang G-W, Li P-F, Wang H-X, Han Y, Chen C-F (2017) Complexation of racemic 2,6-helic[6]
arene and its hexamethyl-substituted derivative with quaternary ammonium salts, N-heterocyclic salts, and tetracyanoquinodimethane. Chem Eur J 23:3735–3742
45. Zhang G-W, Shi Q, Chen C-F (2017) Formation of charge-transfer complexes based on a
tropylium cation and 2,6-helic[6]arenes: a visible redox stimulus-responsive process. Chem
Commun 53:2582–2585
46. Shi Q, Han Y, Chen C-F (2017) Complexation between (O-methyl) 6 -2,6-helic[6]arene and
tertiary ammonium salts: acid-base/chloride ion responsive host-guest systems and synthesis of
[2]rotaxane. Chem Asian J 12:2576–2582
47. Shi Q, Chen C-F (2017) Switchable complexation between (O-methyl)6-2,6-helic[6]arene and
protonated pyridinium salts controlled by acid/base and photoacid. Org Lett 19:3175–3178
48. Shi Q, Meng Z, Xiang J-F, Chen C-F (2018) Efficient control of movements in non-photoresponsive molecular machines by photo-induced proton-transfer strategy. Chem Commun
54:3536–3539
49. Yang L-P, Jia F, Cui J-S, Lu S-B, Jiang W (2017) Light-controlled switching of a nonphotoresponsive molecular shuttle. Org Lett 19:2945–2948
50. Zhang G-W, Han Y, Han Y, Wang Y, Chen C-F (2017) Synthesis of a water-soluble 2,6-helic[6]
arene derivative and its strong binding abilities towards quaternary phosphonium salts: an acid/
base controlled switchable complexation process. Chem Commun 53:10433–10436
180
Y. Han and C.-F. Chen
oxacalixarene and π-extended viologens: linker-length-dependent orientation of the macrocycles in pseudo[3]rotaxanes. Org Biomol Chem 14:10481–10488
35. Xue M, Su Y-S, Chen C-F (2010) Isomeric squaraine-based [2]pseudorotaxanes and [2]
rotaxanes: synthesis, optical properties, and their tubular structures in the solid state. Chem
Eur J 16:8537–8544
36. Wang H-X, Meng Z, Xiang J-F, Xia Y-X, Sun Y, Hu S-Z, Chen H, Yao J, Chen C-F (2016)
Guest-dependent directional complexation based on triptycene-derived oxacalixarene: formation of oriented rotaxanes. Chem Sci 7:469–474
37. Xue M, Chen C-F (2011) Aromatic single-walled organic nanotubes self-assembled from N(H)bridged azacalix[2]triptycene[2]pyridine. Chem Commun 47:2318–2320
38. Wierzbicki M, Jedrzejewska H, Szumna A (2016) Chiral calixarenes and resorcinarenes. In:
Calixarenes and beyond. Springer, Cham, pp 13–42
39. Zheng Y-S, Luo J (2011) Inherently chiral calixarenes: a decade’s review. J Incl Phenom
Macrocycl Chem 71:35–56
40. Xu Z-X, Zhang C, Zheng Q-Y, Chen C-F, Huang Z-T (2007) A new approach to enantiopure
inherently chiral calix[4]arenes: determination of their absolute configurations. Org Lett
9:4447–4450
41. Ogoshi T, Akutsu T, Yamafuji D, Aoki T, Yamagishi T-a (2013) Solvent- and achiral-guesttriggered chiral inversion in a planar chiral pseudo[1]catenane. Angew Chem Int Ed
52:8111–8115
42. Zhang G-W, Li P-F, Meng Z, Wang H-X, Han Y, Chen C-F (2016) Triptycene-based chiral
macrocyclic hosts for highly enantioselective recognition of chiral guests containing a trimethylamino group. Angew Chem Int Ed 55:5304–5308
43. Wang J-Q, Li J, Zhang G-W, Chen C-F (2018) An efficient route to enantiopure (O-methyl) 6 -
2,6-helic[6]arenes: synthesis of hexabromo-substituted helic[6]arene derivatives and their
Suzuki-coupling reactions. J Org Chem 83:11532–11540
44. Zhang G-W, Li P-F, Wang H-X, Han Y, Chen C-F (2017) Complexation of racemic 2,6-helic[6]
arene and its hexamethyl-substituted derivative with quaternary ammonium salts, N-heterocyclic salts, and tetracyanoquinodimethane. Chem Eur J 23:3735–3742
45. Zhang G-W, Shi Q, Chen C-F (2017) Formation of charge-transfer complexes based on a
tropylium cation and 2,6-helic[6]arenes: a visible redox stimulus-responsive process. Chem
Commun 53:2582–2585
46. Shi Q, Han Y, Chen C-F (2017) Complexation between (O-methyl) 6 -2,6-helic[6]arene and
tertiary ammonium salts: acid-base/chloride ion responsive host-guest systems and synthesis of
[2]rotaxane. Chem Asian J 12:2576–2582
47. Shi Q, Chen C-F (2017) Switchable complexation between (O-methyl)6-2,6-helic[6]arene and
protonated pyridinium salts controlled by acid/base and photoacid. Org Lett 19:3175–3178
48. Shi Q, Meng Z, Xiang J-F, Chen C-F (2018) Efficient control of movements in non-photoresponsive molecular machines by photo-induced proton-transfer strategy. Chem Commun
54:3536–3539
49. Yang L-P, Jia F, Cui J-S, Lu S-B, Jiang W (2017) Light-controlled switching of a nonphotoresponsive molecular shuttle. Org Lett 19:2945–2948
50. Zhang G-W, Han Y, Han Y, Wang Y, Chen C-F (2017) Synthesis of a water-soluble 2,6-helic[6]
arene derivative and its strong binding abilities towards quaternary phosphonium salts: an acid/
base controlled switchable complexation process. Chem Commun 53:10433–10436
180
Y. Han and C.-F. Chen