Fast 1H NMR relaxation in some ruthenium hydrides Article

cited authors

  • Castellanos, A; Ayllon, JA; Sabo-Étienne, S; Donnadieu, B; Chaudret, B; Yao, W; Kavallieratos, K; Crabtree, RH

abstract

  • We report here the synthesis of the new hydride complexes (C5H4CH(CH2CH2)2NMe)-RuH(PPh3)2 (1) and [(C5H4CH(CH2CH2)2NHMe)-RuH(PPh3)2](BF4) (2), the X-ray crystal structures of 1 and 2, and an unprecedented observation of extremely short relaxation times in a monohydride complex as well as in the reaction of CpRuH(PPh3)2 with a variety of acidic proton donors. The relaxation is much faster than expected for a dipole-dipole process involving the two dihydrogen-bonded protons, but no origin for the effect could be suggested. © Académie des sciences/Elsevier, Paris.

publication date

  • January 1, 1999

Digital Object Identifier (DOI)

start page

  • 359

end page

  • 368

volume

  • 2

issue

  • 5-6