
TY  - JOUR
A1  - Collins, MJ 
A1  - Gready, JE 
A1  - Sternhell, S 
A1  - Tansey, CW 
T1  - An N.M.R. Investigation of the Mills-Nixon Effect
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1990
VL  - 43
IS  - 9
SP  - 1547
EP  - 1557
KW  - 
UR  - https://doi.org/10.1071/CH9901547 
N2  - The 4J(H-C-C-Me) coupling constant, previously established1-3 as a probe of bond order, was used to examine the bond orders in a series of ortho -bridged compounds: benzocyclopropene , 1,2- dihydrobenzocyclobutene , indan and tetralin . No evidence for sterically induced bond fixation (i.e. the Mills-Nixon4 effect) was found, but some evidence for electronic distortion In the corresponding benzylic ketones was observed. The experimental results are in accord with SCF/MO calculations. 
ER  -

