Organometallic Compounds

Name: Organometallic Compounds
Brand: Springer
SKU: 9789400957312
Price: 275.89 RON
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Volume One The Main Group Elements Part Two Groups IV and V

Autor: B. J. Aylett

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Editura: Springer

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A very large number of organo derivatives is formed by the Group IV ele ments silicon, germanium, ti...

Informații despre carte

Autor

B. J. Aylett

Limbă

engleză

Legare

Carte - Carte broșată

Publicat

2012

Pagini

522

EAN

9789400957312

ISBN

9400957319

Enbook ID

02177158

Editura

Springer

Greutate

819

Dimensiuni

155 x 235 x 29

Descriere completă

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.

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Organometallic Compounds

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

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Descriere completă

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