ISSN:
1572-8854
Keywords:
Pentafluorophenyl rings
;
“ipso” effect
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The variance in the geometry of pentafluorophenyl rings bonded to metals of the fourth, fifth and sixth rows of the Periodic Table has been analyzed from the data present in the literature. The application of univariate and bivariate analysis to internal coordinates shows that the major variation corresponds to bond angles, specially to those near to the substitution. This effect (“ipso” effect) seems to be related to the Pauling's electronegativity of the metals. Multivariate analysis of these coordinates reveals the existence of three principle effects, the main one of them corresponding to the “ipso” effect and the other two being related with the thermal vibration of the molecule and with the inhomogeneity of the sample. The application of bivariate analysis to symmetry coordinates does not give any correlation between the two orthogonal components describing fully the angular variance.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01666095
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