In this work we report on the synthesis of new [PtCl(h2-CH2]CH2)(N^N)]þ and [PtCl(h1-CH2 eCH2OCH3)(N^N)] complexes, with different N^N dinitrogen ligands, i.e. ethylenediamine (en), R,R- and S,Sdiaminocyclohexane (R,R- and S,S-chxn), R,R- and S,S-N,N,N0,N0-tetramethyl-1,2-diaminocyclohexane (R,R- and S,S-Me4chxn). In particular, the factors determining complex stability are highlighted, and discussed in relation to 1H, 13C and 195Pt NMR chemical shifts exhibited by different complexes bearing hindered or unhindered diamine or diimine ligands.
[PtCl(h1-CH2-CH2OR)(N^N)] and [PtCl(h2-CH2-CH2)(N^N)]+, N^N = dinitrogen ligand, complexes. Sterical and electronic effects evidenced by NMR analysis.
BENEDETTI, MICHELE
Primo
;GIRELLI, CHIARA ROBERTASecondo
;ANTONUCCI, DANIELAPenultimo
;FANIZZI, Francesco Paolo
Ultimo
2014-01-01
Abstract
In this work we report on the synthesis of new [PtCl(h2-CH2]CH2)(N^N)]þ and [PtCl(h1-CH2 eCH2OCH3)(N^N)] complexes, with different N^N dinitrogen ligands, i.e. ethylenediamine (en), R,R- and S,Sdiaminocyclohexane (R,R- and S,S-chxn), R,R- and S,S-N,N,N0,N0-tetramethyl-1,2-diaminocyclohexane (R,R- and S,S-Me4chxn). In particular, the factors determining complex stability are highlighted, and discussed in relation to 1H, 13C and 195Pt NMR chemical shifts exhibited by different complexes bearing hindered or unhindered diamine or diimine ligands.File in questo prodotto:
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