Cis addition of dimethylamine to the coordinated nitriles of cis- and trans-[PtCl2(NCMe)(2)]. X-ray structure of the amidine complex cis- [PtCl2{E-N(H)=C(NMe2)Me}(2)]center dot CH2Cl2
Ra. Michelin et al., Cis addition of dimethylamine to the coordinated nitriles of cis- and trans-[PtCl2(NCMe)(2)]. X-ray structure of the amidine complex cis- [PtCl2{E-N(H)=C(NMe2)Me}(2)]center dot CH2Cl2, INORG CH C, 4(6), 2001, pp. 275-280
The reaction of cis-[PtCl2(NCMe)(2)] with a 5-fold excess of Me2NH in CH2Cl
2 at -10 degreesC affords in high yield the bis-amidine complex cis-[PtCl2
{E-N(H)=C(NMe2)Me}(2)] (E,E-2), where both the amidine ligands assume the E
configuration. E,E-2 was characterized by X-ray structure analysis, NMR sp
ectroscopy and electrospray ionization mass spectrometry (ESI-MS). The corr
esponding reactions of trans-[PtCl2 (NCMe)(2)] with Me2NH gave the bis-amid
ine complex trans-[PtCl2 {E-N(H)=C(NMe2)Me}(2)] (E,E-3) and the mono-amidin
e derivative trans-[PtCl2{E-N(H)=C(NMe2)Me} (NCMe)] (E-4). (C) 2001 Elsevie
r Science B.V. All rights reserved.