PGSE NMR studies on RAPTA derivatives:: Evidence for the formation of H-bonded dicationic species

被引:28
作者
Bolano, Sandra [2 ]
Ciancaleoni, Gianluca [1 ]
Bravo, Jorge [2 ]
Gonsalvi, Luca [3 ]
Macchioni, Alceo [1 ]
Peruzzini, Maurizio [3 ]
机构
[1] Univ Perugia, Dipartimento Chim, I-06123 Perugia, Italy
[2] Univ Vigo, Fac Quim, Dept Quim Inorgan, Vigo 36310, Spain
[3] CNR ICCOM, I-50019 Sesto Fiorentino, FI, Italy
关键词
D O I
10.1021/om701131s
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The self-aggregation tendency of RAPTA complexes {[Ru(eta(6)-p-cymene){PTA(-R)}Cl-2]X, R = H (1BPh(4) and 1PF(6)) and Me (2BPh(4) and 2OTf), and [Ru(eta(6)-p-cymene)(PTA)(2)Cl]X (3BPh(4) and 3BF(4))} in acetone-d(6) was investigated by means of diffusion NMR spectroscopy. On increasing the concentration, the protonated species (1X) undergoes intercationic self-aggregation driven by hydrogen bonding that leads to the formation of 1(2)(2+) dications and a small amount of 1(2)X(+) ion triples.
引用
收藏
页码:1649 / 1652
页数:4
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