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The influence of the configuration of the C-20 substituent in Δ4-3-ketones of the pregnane and isopregnane series on the amplitude of circular Dichroism curves

✍ Scribed by A. A. Akhrem; T. K. Ustynyuk; G. A. Kogan; V. A. Petukhov

Book ID: 112432638
Publisher: Springer
Year: 1969
Tongue: English
Weight: 63 KB
Volume: 18
Category: Article
ISSN: 1573-9171
DOI: 10.1007/bf00905862

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## Abstract Crystals of bicyclopropylidene grown from the liquid are monoclinic, space group __P__2~1~/__n, a__ = 4.9744(3), __b__ = 12.4870(8); __c__ = 4.0366(3) Å, β = 95.077(7)° (173 K), __Z__ = 2. The final __R__ for 450 independent observed reflections is 0.036. Crystals of (dicyclopropylmeth