RT info:eu-repo/semantics/article
T1 The coordination chemistry of the neutral tris-2-pyridyl silicon ligand [PhSi(6-Me-2-py)3]
A1 Plajer, Alex J.
A1 Enders, Markus
A1 García Romero, Álvaro
A1 Bond, Andrew D.
A1 García Rodríguez, Raúl
A1 Wright, Dominic Simon
AB Difficulties in the preparation of neutral ligands of the type [RSi(2-py)3] (where 2-py is an unfunctionalised 2-pyridyl ring unit) have thwarted efforts to expand the coordination chemistry of ligands of this type. However, simply switching the pyridyl substituents to 6-methyl-pyridyl groups (6-Me-2-py) in the current paper has allowed smooth, high-yielding access to the [PhSi(6-Me-2-py)3] ligand (1), and the first exploration of its coordination chemistry with transition metals. The synthesis, single-crystal X-ray structures and solution dynamics of the new complexes [{PhSi(6-Me-2-py)3}CuCH3CN][PF6], [{PhSi(6-Me-2-py)3}CuCH3CN][CuCl2], [{PhSi(6-Me-2-py)3}FeCl2], [{PhSi(6-Me-2-py)3}Mo(CO)3] and [{PhSi(6-Me-2-py)3}CoCl2] are reported. The paramagnetic Fe2+ and Co2+ complexes show strongly shifted NMR resonances for the coordinated pyridyl units due to large Fermi-contact shifts. However, magnetic anisotropy also leads to considerable pseudo-contact shifts so that both contributions have to be included in the paramagnetic NMR analysis.
PB Royal Society of Chemistry
SN 1477-9226
YR 2018
FD 2018
LK http://uvadoc.uva.es/handle/10324/33429
UL http://uvadoc.uva.es/handle/10324/33429
LA eng
NO Dalton Transactions, 2018, Issue 20, pp. 7036-7043
NO Producción Científica
DS UVaDOC
RD 20-abr-2024