ISSN:
0947-3440
Keywords:
Propargyllithium versus allenyllithium structure
;
Crystal structure, comparison with theoretical structure
;
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Crystal structure investigations reveal that η3-lithio-1,3,3-triphenylpropyne-(diethyl ether)2 [6 · (OEt2)2] is of the propargyl structural type while [1-lithio-1-(2-methoxyphenyl)-3,3-diphenylallene-(diethyl ether)]2 {[7 · OEt2]2} is of the allenyl type. The assignment of the different structural types is mainly based on a comparison of the bond lengths C1-C2 and C2-C3 as well as of the difference ΔC—C of these two bond lengths with the corresponding values of theoretical models of the propargyl and allenyl type. This leads also to a correction of an earlier assigned structural type.
Additional Material:
2 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.199519950361