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. Author manuscript; available in PMC: 2023 Mar 7.
Published in final edited form as: Nat Chem. 2022 Dec 1;15(3):413–423. doi: 10.1038/s41557-022-01094-w

Figure 4. NMR spectroscopic analysis and assignment of (OMe-cube)2.

Figure 4

a Full 1H NMR (600 MHz, CD2Cl2) spectrum of (OMe-cube)2. Partial 1H NMR (600 MHz, CD2Cl2) showing eight different types of b imine peaks and c methoxy peaks of (OMe-cube)2. d NOESY spectrum showing cross peaks between imine proton B and methoxy proton d. e NOESY spectrum showing cross peaks between methoxy protons b and d. f NOESY spectrum showing cross peaks between highly shielded aliphatic protons of propyl chains and methoxy protons e and f. g cartoon of the singly catenated cubes highlighting the 12 different magnetically equivalent imine protons respectively. h cartoon of the triply interlocked catenated cube highlighting the 8 different magnetically equivalent imine protons. The colour code and assignment are the same as in b and c. i cartoons of the quadruply interlocked catenated cubes highlighting the 6 different magnetically equivalent imine protons respectively.