Ulrich Krüerke – författare

This fifth volume on organoantimony compounds continues the description of pentavalent antimony compounds and concludes the entire series. The treatment of pentavalent compounds with three Sb-C bonds began in Part 4 with the RSbX type and is now completed with types RSb(X)Y, RR'SbX , RR'Sb(X)Y, 3 2 3 2 2 2 RR'R"SbX (Section 2.5.1) and the corresponding bi- and trinuclear compounds (Sec- 2 tions 2.5.2, p.87, and 2.5.3, p. 132). R, R', and R" denote different organic groups bonded through carbon to the antimony atom. X and Y represent inorganic or organic groups that are bonded to antimony by an atom other than carbon. R, X, and/or Y can also be chelating ligands. The remaining part of the volume completeLy covers all pentavalent antimony compounds containing two Sb-C bonds (RSbX , RSb(X )Y, RR'SbX , RR'Sb(X )Y, bi- and tetranucLear 2 3 2 2 3 2 compounds, Chapter 2.6, p. 134) and those containing one Sb-C bond (RSbX , RSb(X )Y, 4 3 RSb(X)Y , bi- and trinucLear compounds, Chapter 2.7, p. 237). These compounds form ad- 2 2 ducts with Lewis bases (symbol D) and form many ionic compLexes by the addition of saLts such as amine hydrochLorides (symbol MZ).The adducts and ionic compLexes are described immediately after the parent substances. The volume concludes with an Empirical Formula Index (p. 318) and a Ligand Formula Index (p. 357).

The present volume in the organogermanium series describes mononuclear compounds containing only germanium-carbon and germanium-hydrogen bonds (Chapter 1.3). However, compound names were largely avoided, as most of the compounds are presented in tables and are only identified by their formulas.

The present volume continues the series on "Organotin Compounds" which first appeared in 1975 and now comprises a collection of fifteen volumes. The overallplan of the series has been given in the preface of Volume 1. The present Volume 15 continues the description of the mononuclear organotin compounds with tin-oxygen bonds (Chapter 1.4.1 ). Treatment of organotin compounds with tin-sulfur, -selenium, and -tellurium bonds appeared earlier in 9, 1982, and 10, 1983. Chapters 1.4.2 to 1.4.4 of Volumes Volume 15 contains RSn-oxygen compounds with R = butyl, iso-butyl, sec-butyl, and 2 tert-butyl, covering the Literature completely to the end of 1985. Additional volumes describing tin-oxygen compounds with other RSn and RSn groups will follow in the near future. 2 Abbreviations and symbols are explained on pp. X/XI along with other remarks. We thank Prof. Dr. Dr. h. c. Ekkehard Fluck and his coworkers at the Gmelin Institute for their excellent cooperation. ln particular, we thank Dr. Ulrich Kruerke for his accurate and sympathetic editing, Mr. Edgar Rudolph for preparing the index, Dr. Grant for reading the drawing the numerous formulas and molec- English text, and Mr.Hans-Georg Karrenberg for ular structures. We thank Mrs. Ellen Redlinger, Miss Susanne Schumann, and Miss Stefanie Schumann for their meticulous handling of the Literature index and the members of the chemical department of the Library at the Technische Universitat Berlin for their assistance in searching and acquiring the references from the Literature.