New structurally rigid palladiumcatalysts for the alternating copolymerization of carbon monoxide and etheneElectronic supplementary information (ESI) available: experimental section. See http://www.rsc.org/suppdata/cc/b0/b000376j/ for crystallographic data in .cif format.
Abstract
Decreasing the flexibility of the
Ph2PCH2CH2PPh2 (dppe) backbone
by making the central carbon atoms part of a