J. =8, Mp (m, J = 9.4, 8.1, 5.2 Hz, 4H), 3.16 (s, 4H). 13 C NMR (75 MHz 6 ) 2 (CH 2 Cl 2 ) (MW = 1294, pp.210-212

=. Na and . +300, 16 (s, 4H) 13 C NMR (75 MHz, CDCl 3 ) d 153, pp.37-44

J. Farrugia, Downloaded by Bibliotheque de L'Universite de Rennes I on 15, J. Appl. Crystallogr, vol.32, issue.10, p.4505, 1999.