Journal of the Chemical Society, Dalton Transactions p. 2441 - 2446 (1983)
Update date:2022-08-04
Topics:
Granell, Jaime
Sales, Joaquim
Vilarrasa, Jaume
Declercq, Jean P.
Germain, Gabriel
et al.
The reaction of benzalazines, (p-RC6H4CH=N-)2 (R=H, Cl, NO2, or NMe2), with PdCl2 leads in the first two cases to the formation of cyclometallated polymeric species that react with phosphines to yield dimetallated compounds <a single-crystal X-ray analysis.The crystals are monoclinic, space group P21/n, a=11.124(3), b=10.062(2), c=22.566(5) Angstroem, β=102.95(3) degree, and Z=2; R=0.052 for 3 306 reflections.Palladium atoms are five-co-ordinated, the Pd-N distance being 2.743 Angstroem.However, n.m.r. spectra show that, in solution, free rotation around the C(aromatic)-C(azomethine) bonds does occur even at -100 deg C.
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