ISSN:
0009-2940
Keywords:
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
The Structure of a Highly Strained 2-Butene-1,4-dioneThe structure of 3,3,3,3,6,6,6,6-octamethyl-4,4′-bi(1-thiacycloheptylidene)-5,5′-dione (3) has been determined by single-crystal X-ray diffraction. The compound crystallizes in the space group Pbca with a = 17.59. b = 19.29. c = 12.10 Å, Z = 8. The 2-butene-1,4-dione moiety is highly distorted. The two carbonyl groups are nearly perpendicular to the twisted central double bond.
Notes:
Die Struktur des 3,3,3,3,6,6,6,6-Octamethyl-4,4′-bi(1-thiacycloheptyliden)-5,5′-dions (3) wurde röntgenkristallographisch bestimmt. Die Verbindung kristallisiert in der Raumgruppe Pbca mit den Gitterkonstanten a = 17.59, b = 19.29, c = 12.10 Å. Z = 8. Das 2-Buten-1,4-dionsystem ist stark gespannt. Die beiden Carbonylgruppen stehen nahezu senkrecht auf der verdrillten zentralen Doppelbindung.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19781110539
