Dynamic Combinatorial Chemistry || Color Plates
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Figure 4.2 Hydrogen bonding region (8.0–14.5 ppm) of the 1 H NMR spectra (H 2 O sat. CDCl 3 , 500 MHz, 298 K) recorded for ( a) 9 10 Ba 2 2Pic – , ( b) 10 16 2Ba 2 4Pic – , ( c) 19 2 , ( d) 20 3 21 6 , ( e) 17 2 , ( f) 18 2 , ( g) 15 2 , ( h) ( )-16 ( )- 16, ( i) a self- sorted mixture comprising 9 10 Ba 2 2Pic – , 10 16 2Ba 2 4Pic – , 19 2 , 20 3 21 6 , 17 2 , 18 2 , 15 2 , and ( )- 16 ( )- 16. The representations depict the species present in solution. The resonances are color coded to aid comparison. See pages 127–128 for text discussion of this figure. Scheme 4.10 The sequential addition of various CB[ n] and guests to 41 induces folding, forced unfolding, and refolding of 41 into four different conformations. See pages 133–135 for text discussion of this figure.
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Transcript of Dynamic Combinatorial Chemistry || Color Plates
Figure 4.2 Hydrogen bonding region (8.0 – 14.5 ppm) of the 1 H NMR spectra (H 2 O
sat. CDCl 3 , 500 MHz, 298 K) recorded for ( a ) 9
10 � Ba 2 � � 2Pic – , ( b ) 10
16 � 2Ba 2 �
4Pic – , ( c ) 19 2 , ( d ) 20
3 � 21
6 , ( e ) 17
2 , ( f ) 18
2 , ( g ) 15
2 , ( h ) ( � ) - 16 � ( � ) - 16, ( i ) a self -
sorted mixture comprising 9 10
� Ba 2 � � 2Pic – , 10 16
� 2Ba 2 � 4Pic – , 19 2 , 20
3 � 21
6 , 17
2 ,
18 2 , 15
2 , and ( � ) - 16 � ( � ) - 16. The representations depict the species present in
solution. The resonances are color coded to aid comparison. See pages 127–128 for text discussion of this figure.
Scheme 4.10 The sequential addition of various CB[ n ] and guests to 41 induces folding, forced unfolding, and refolding of 41 into four different conformations. See pages 133–135 for text discussion of this figure.
