Journal of the Chemical Society, Dalton Transactions p. 1203 - 1207 (1996)
Update date:2022-08-03
Topics:
Menon, Saija C.
Singh, Harkesh B.
Patel, Rajan P.
Kulshreshtha, Shailendra K.
The condensation of bis(2-formylphenyl) telluride 1 with ethane-1,2-diamine yielded the novel macrocyclic tellurium ligand 2 via metal-free dimerisation. Crystals of 2 are triclinic, space group P1 with a = 7.956(3), b = 9.885(2), c = 10.068(2) A, Z = 1. Hydrogenation of macrocycle 2 provided the corresponding saturated tetraazamacrocycle 3, protonation of which with HBr afforded 4. The co-ordination chemistry of 2 has been studied with 'soft' metal ions such as palladium(II) and mercury(II). N,N′-Bis[(2-chlorotelluranyl)benzylidene]ethane-1,2-diamine has also been characterised by an X-ray diffraction study, with triclinic space- group P1, a = 7.71(1), b = 7.90(1), c = 8.52(1) A and Z = 1.
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