The chemistry of organozinc compounds / edited by Zvi Rappoport and Ilan Marek. (OCLC #70054225)

If Part 1 of this set has R-Zn, does Part 2 have A-Q? Though this is a multi-volume set, that R-Zn does not describe the content of just this volume; it describes the whole set!

Zn is zinc, and the list of abbreviations following the table of contents says that R stands for “any radical”. An organozinc compound contains carbon-to-zinc chemical bonds, so “R-Zn” appears to be a diagram with R as a wildcard.

Similarly, I have in hand The chemistry of organomanganese compounds which says “R-Mn”, and The chemistry of organolithium compounds, Volume 2 which says “R-Li”.