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The Element Displacement Principle

The groups obtained by fluorine displacement are different from Grimm s pseudoelements, being neither isoelectronic nor isoprotonic with their reference atoms and should conceptually be clearly differentiated from them. It is suitable to call these and other radicals obtained similarly paraelements.3 [Pg.169]

Each paraelement for its part is then able to function as a ligand. Thus, for example, using the halogen-like CF3 radical, the first-order derivative paraelements shown below are obtained. [Pg.169]

2 Paraelements of this group are only stable as cations. [Pg.169]

If first-order derivative paraelements are themselves used as ligands this system of nomenclature leads to second-order derivative paraelements, e.g., using CF3S. This procedure can be continued in many cases with meaningful results. [Pg.170]

Which sort of paraelements do we obtain with ligands like oxygen, sulfur, or nitrogen When any one of these is used as the ligand a displacement of two or three groups must of course result, as follows  [Pg.170]


THE ELEMENT DISPLACEMENT PRINCIPLE A NEW GUIDE IN p-BLOCK ELEMENT CHEMISTRY1... [Pg.167]

III. Application of the Element Displacement Principle to Recent Chemical Problems... [Pg.172]

It is very difficult at first sight to understand why substances like P7R3, P4[Si(CH3)2]3 and also Sb73- should have the same structure as P4S3. With the aid of the element displacement principle this question can be answered without difficulty. In the cases mentioned the molecules contain a P4 and an Sl>4 unit and the other parts can be written as... [Pg.196]

The Element Displacement Principle A New Guide in p-BIock Element Chemistry A. Haas... [Pg.374]

Haas A (1984) The element displacement principle a new guide in P-block element chemistry. Adv Inoig Chem Radiochem 28 167-202. doi 10.1016/S0898-8838(08)60208-l... [Pg.586]

The syntheses of a large number of Group 15-17 onium cations such as S2F, H2SF+, H2OF+, and Br5+ from the reactions of the monfluoroxenonium hexafluorometalates XeF MF6 where M = As or Sb are described in a later chapter by Minkwitz and Back. As a further example of the utility of the element displacement principle 189-192), Haas and Brosius demonstrate the influence of fluorine, trifluoromethyl, trifluoromethylsulfenyl, and trifluoromethylselenyl on the... [Pg.9]


See other pages where The Element Displacement Principle is mentioned: [Pg.167]    [Pg.167]    [Pg.169]    [Pg.169]    [Pg.169]    [Pg.171]    [Pg.173]    [Pg.175]    [Pg.177]    [Pg.179]    [Pg.180]    [Pg.181]    [Pg.185]    [Pg.185]    [Pg.187]    [Pg.187]    [Pg.189]    [Pg.191]    [Pg.193]    [Pg.195]    [Pg.197]    [Pg.199]    [Pg.201]    [Pg.418]    [Pg.33]    [Pg.236]    [Pg.127]   


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