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, See reference 20b and the corresponding SI for a definition of the R p and S p stereodescriptors
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, Calculated for a triply-linked [26]HCD hybrid, see reference 20a
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, Considering a transiting C 2 -symmetric rectangular conformation, the same (degenerate) Möbius isomers are obtained from twisting one or the other identical (C 2 -symmetrically related
, These long-side patterns are also supported by the 19 F NMR spectra lacking the through-space 19 F-19 F coupling constant, and by the distribution of the para-fluorine atoms resonating at very similar chemical shifts for R [26]1 (? = -153.12 and -153.21 ppm, long side/long side), vs
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, the P/M absolute configuration of the separated enantiomers of a Pd(II) complex of a Möbius [28]hexaphyrin were misassigned
, Whereas quantitative metalation was achieved with Zn(OTf) 2 /L 2 , metalation did not go to completion with Zn(OAc) 2, even with a large excess and prolonged heating
, For instance, a pronounced inward orientation of the meso-aromatic substituent cis to the N atom of the twisted pyrrole has been observed with group ten metal complexes of Möbius [28]hexaphyrins, exhibiting a significant localized twist distribution due to a constraining square planar NNNC coordination sphere; see, Inorg. Chem, vol.44, pp.4127-4129, 2005.
, Sharp signals were observed at 243 K, see the SI
, ZnL n ' oriented inward, short distances between e.g. the Me groups of the bound L 2 and the linker ethylenic and aromatic protons (< 5 Å) would lead to significant NOE correlations. The only NOE correlations observed with the bound L 2 indicate spatial proximity between its 'in' Me group and outer ?-pyrrolic protons
, Considering that the detection limit of the 1 H NMR experiment is ca
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, For a recent example of remote control of planar chirality in a dynamic system, see: Mamiya, F.; Ousaka, N.; Yashima, E. Remote Control of the Planar Chirality in Peptide-Bound Metallomacrocycles and Dynamic-to-Static Planar Chirality Control Triggered by Solvent-Induced 3 10 -to-?-Helix Transitions, Angew. Chem. Int. Ed, vol.54, pp.14442-14446, 2015.