Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Arsines multidentate

Phosphines and arsines containing more than one olefinic group were neglected as possible multidentate ligands until Hall prepared the tris (orfAo-vinylphenyl) derivatives of phosphorus, arsenic and antimony (tvpp, tvpa and tvps) and their platinum(II) (48) and rhodium(I) (49) complexes. [Pg.37]

A key precursor to multidentate arsines is o-bromophenyldichloroarsine, which may be similarly obtained if the diazotization is conducted in glacial acetic acid and the source of arsenic is AsCl (equation 34).107,10 Conproportionation of PhAsCl, and PhAsO gives Ph2AsCl (contaminated with PhAsCl2 and PhjAs).106... [Pg.1005]

Multidentate arsine ligands that coordinate to Ir(III) include Ph2AsCH2CH2AsPh2, l,2-(AsMe2)2C6H4 (Scheme 5), PhAs(C6H4AsPh2-2)2, and As(C6H4AsPh2-2)3. [Pg.1843]

The > -olefin complexes of Cii(I), Ag(I) and Au(I) dissociate in solution. The loss of the olefinic ligand can be prevented by incorporating it into a multidentate phosphine or arsine ligand . Thus o-CH2=CHCH2CgH4PPh2 reacts with Cu(I) halides to form a 1 1 complex ... [Pg.35]

See other pages where Arsines multidentate is mentioned: [Pg.87]    [Pg.190]    [Pg.41]    [Pg.81]    [Pg.314]    [Pg.855]    [Pg.856]    [Pg.989]    [Pg.1007]    [Pg.1070]    [Pg.773]    [Pg.165]    [Pg.773]    [Pg.1635]    [Pg.1653]    [Pg.1716]    [Pg.2694]    [Pg.2695]    [Pg.4227]    [Pg.165]   
See also in sourсe #XX -- [ Pg.1165 ]



SEARCH



Multidentate

Multidenticity

© 2024 chempedia.info