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Croconate valence tautomers

Nonbenzenoid aromatic Dsf, valence tautomer of croconate dianion. In the crystal structure of 26, two of the three independent urea molecules constitute a hydrogen-bonded dimer, labeled motif A (Figure 8.54). Adjacent pairs of urea dimers lying parallel to the c-axial direction are twisted by 60° and bridged by pairs of water molecules derived from Olw and 02w via pairs of strong -O and O-H O hydrogen bonds [58a]... [Pg.284]

Enediolate C2v valence tautomer of croconate. To create an asymmetric hydrogen-bond donor environment that stabilizes the C2v valence tautomer of CsOs , we... [Pg.285]

Figure 8,58 Bond lengths (A) and angles C) of the D i, (a) and C2v (b) valence tautomers of the croconate dianlon as observed in 26 and 27, respectively, with standard deviations in parentheses... Figure 8,58 Bond lengths (A) and angles C) of the D i, (a) and C2v (b) valence tautomers of the croconate dianlon as observed in 26 and 27, respectively, with standard deviations in parentheses...
See other pages where Croconate valence tautomers is mentioned: [Pg.783]    [Pg.784]    [Pg.785]    [Pg.239]    [Pg.282]    [Pg.282]    [Pg.287]    [Pg.288]    [Pg.306]   
See also in sourсe #XX -- [ Pg.282 ]



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Croconate

Croconates

Tautomer

Tautomers

Valence tautomer

Valence tautomers

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