Cyclopentadiene and 1,3-cyclohexadiene are readily polymerised by [LAu][X]. With specific ancillary ligands polymerisation was suppressed and a molecular species involving an Au(I) cation η(2)-bonding CpH was isolated and whose structure was probed in both the solid state and in solution.

SIGNATURE AROUND LUNAR IMPACT CRATERS. F. T. Freund, H. H. Jones, B. W. S. Lau, A. Takeuchi, NASA Ames Research Center, MS 242-4, Moffett Field, CA 94035, [email protected], Carl Sagan Center, SETI Institute, 515 N Whisman Road, Mountain View, CA 94043, NASA Goddard Space Flight Center, Code 553, Greenbelt, MD 20771, [email protected], Department of Chemistry, Niigata University, ...

We examine two prominent upper mantle velocity anomalies in the southwest Pacific, the Tonga slab anomaly and the corresponding ov. erlying mantle wedge anomaly, using data collected during a combined land-sea deployment of temporary seismometers. The linear geometry and small interstation spacing of the instruments yield high-resolution data along a cross section of the Tonga subduction zone, ...

New insights into the combinatorial structure of the the Mandelbrot set are given by ‘Correspondence’ and ‘Translation’ Principles both conjectured and partially proved by E. Lau and D. Schleicher. We provide complete proofs of these principles and discuss results related to them. Stony Brook IMS Preprint #1997/14 October 1997 1. The conjectures by Lau and Schleicher Introduction. The detailed ...