Pablo Steenwinkel, Huub Kooijman, Wilberth J. J. Smeets, Anthony
L. Spek, David M. Grove, and Gerard van Koten:
Intramolecularly Stabilized 1,4-Phenylene-Bridged Homo- and
Heterodinuclear Palladium and Platinum Organometallic Complexes
Containing N,C,N-Coordination Motifs; eta1-SO2
Coordination and Formation of an Organometallic Arenium Ion Complex
with Two Pt-C sigma-Bonds.
Organometallics 17 (1998) 5411-5426.