Organometallic Compounds

Volume One The Main Group Elements Part Two Groups IV and V

  • B. J. Aylett

Table of contents

  1. Front Matter
    Pages i-xi
  2. Silicon, Germanium, Tin and Lead

    1. Front Matter
      Pages xiii-xiii
    2. B. J. Aylett
      Pages 1-4
    3. B. J. Aylett
      Pages 5-130
    4. B. J. Aylett
      Pages 131-176
    5. Tin
      B. J. Aylett
      Pages 177-276
    6. B. J. Aylett
      Pages 277-312
    7. Back Matter
      Pages 313-384
  3. Arsenic, Antimony and Bismuth

    1. Front Matter
      Pages 385-385
    2. B. J. Aylett
      Pages 387-389
    3. B. J. Aylett
      Pages 390-446
    4. B. J. Aylett
      Pages 447-478
    5. B. J. Aylett
      Pages 479-489
    6. Back Matter
      Pages 490-507
  4. Back Matter
    Pages 508-521

About this book

Introduction

A very large number of organo derivatives is formed by the Group IV ele­ ments silicon, germanium, tin, and lead. In comparing the general properties of these elements, Table 1. 1 shows that the first ionization energies decrease (though not in a regular way) with increase in size and atomic number, con­ sistent with the general increase in metallic character of the elements. Electro­ negativity values (which have been the subject of considerable controversy) show no clear trend. Although purely inorganic compounds of tin(n) and leaden) are well known, almost all organo Group IV derivatives show an oxidation state of IV. Bonds to carbon become weaker on passing from silicon to lead, as do the element-element bonds themselves. With any particular element M (M = Si, Ge, Sn, or Pb), there is a small decrease in bond energy in the order: M-Ph > M - Me > M - Et. Although accurate data for organo derivatives are lacking, strengths of bonds to other elements probably decrease in the order: M-F> M-O > M-CI > M-H ~ M-N ~ M-S ~ M-Br > M-I, while for a particular element X, the order is: Si-X > Ge-X > Sn-X > Pb-X. It is therefore understandable that reactions leading to Si-F, Si-O, or Si-CI bonds are especially favoured in a thermodynamic sense.

Keywords

bismuth lead magnesium metals organometallic chemistry tin

Authors and affiliations

  • B. J. Aylett
    • 1
  1. 1.Westfield CollegeLondonUK

Bibliographic information

  • DOI https://doi.org/10.1007/978-94-009-5729-9
  • Copyright Information Springer Science+Business Media B.V. 1979
  • Publisher Name Springer, Dordrecht
  • eBook Packages Springer Book Archive
  • Print ISBN 978-94-009-5731-2
  • Online ISBN 978-94-009-5729-9
  • About this book