G. Paiaro et P. Ganis, CONFORMATIONAL EQUILIBRIUM IN TRANS,TRANS,TRANS-CYCLODODECATRIENE (CDT) - STUDIES ON -DICHLORO(CDT)ALPHA-METHYLBENZYLAMINE-PLATINUM(II), Journal of organometallic chemistry, 469(2), 1994, pp. 30000034-30000036
A pure diastereoisomer of the complex trans-[Pt(CDT)Cl2{(R)-alpha-meth
ylbenzylamine} has been isolated. Circular dichroism and polarimetric
measurements revealed the non-equivalence of the three diastereotopic
olefin residues in the coordinated cycloolefin. This indicated a confo
rmational equilibrium D3 half arrow right over half arrow left C1, whi
ch has been explained in terms of stereochemical and thermodynamic con
siderations.