Stereochemistry of Molecules in Crystals (part 1, 2)

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(II) stereoisomers <strong>in</strong> own crystals 1) neighbor<strong>in</strong>g group effect HO O R N · HBr· Br 2 HO O R H Br solid HO O R Br H H Br R = H, Me, Cl H Br H solution H O R Acta Cryst. C53 1997, 620.
2) photochromism O Ph Zn-ZnCl 2 O Ph Ph H Ph O THF-H 2 O H O chiral yellow dark hν O O O Ph Ph H Ph H yellow solution Chem. Comm. 2000, 873. Ph H O H triplet biradical D = 13.78 G E = 1.377 G g xx = 2.0026 purple red
Page 1 and 2: Stereochemistry of Molecules in Cry
Page 3 and 4: 1) acetylacetone-enol form part 1:
Page 5 and 6: 2) acylic acid-monomeric s-trans fo
Page 7 and 8: H O H O OH Ph 2 C CPh 2 OH s-trans
Page 9 and 10: Ph 2 C OH (R, R)-(-)- O O H H · O
Page 11 and 12: H H θ = 5(4) º Cl CH 3 H H
Page 13 and 14: 5) halocyclohexane - eq X X eq ax a
Page 15 and 16: F F Cl F F Fig. X-ray structure of
Page 17 and 18: F F rac - O O OH OH · eq Br F host
Page 19 and 20: · ax Cl host Fig. Packing diagram
Page 21 and 22: Cl 1,3-diaxial interaction (hydroge
Page 23 and 24: · ax Cl I (cps) host 2 θ · ax Br
Page 25: 8) enantiomerization Ph tBu C OH N
Page 29 and 30: 4) succinamide, generation of chila

Stereochemistry of Molecules in Crystals (part 1, 2)

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