Original scientific paper

Hybridization in Highly Strained Small Ring Hydrocarbons. II. Methylene Biscyclopropylidene and Dimethylene Biscyclopropylidenes

M. Randić ; Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia
L. Jakab ; Institute »Ruder Boskovic«, Zagreb, Croatia, Yugoslavia

Abstract

The hybridization in methylene biscyclopropylidene, 1,1'-dimethylene
biscyclopropylidene, and 1,2-dimethylene biscyclopropylidene
is considered by applying the method of maximum
overlap. The results show variations in hybrids describing exocyclic
double bonds: for ring carbons from sp~.ss to sp2-85, and
for off-ring carbons from sp1-10 to sp1-41, depending on the immediate
surounding. Bond overlaps for C=C consequently vary
somewhat, the largest bond overlap being of the central C=C
bond connecting two three membered rings. The results of the
maximum overlap calculations are compared with available
experimental data.

Keywords

Hrčak ID:

197309

URI

https://hrcak.srce.hr/197309

Publication date:

15.11.1971.

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