C–C coupling of aryl groups and allyl derivatives on Pt(II)-phenanthroline fragments: crystal and molecular structure of the tbp [(η1,η2-2-allyl,5-methyl-phenyl)iodo(1,10-phenanthroline)platinum(II)] complex containing the N–N ligand in axial-equatorial coordination mode

2005 ◽  
Vol 690 (8) ◽  
pp. 2035-2043 ◽  
Author(s):  
Vincenzo De Felice ◽  
Augusto De Renzi ◽  
Natascia Fraldi ◽  
Giuseppina Roviello ◽  
Angela Tuzi
1989 ◽  
Vol 42 (7) ◽  
pp. 1057 ◽  
Author(s):  
BF Hoskins ◽  
IAS Mcdonald

The crystal and molecular structure of the trinuclear complex L2Pd3 has been determined by single-crystal X-ray diffraction techniques at room temperatures, 20°C. The quinquedentate binucleating ligand, L3-, is formally the trianion α,α′-[(2-mercapto-5-methylbenzene-1,3-diyl )di(methylidyne)di(azino)]bis(cyclohexaemethano)ato(3-). Crystals of L2Pd3 are triclinic, PI, with a 11.896(1), b 13.4103(7), c 17.451(3) � , α 75.66(1), β 79.93(1) and γ88.99(1)�, Z 2. The structure was solved by the normal Fourier methods and refined by a least-squares procedure which gave final R and R, values of 0.046 and 0.049 respectively for the 7769 statistically significant reflections. The approximately square-planar coordination environments of the palladium centres give rise to a boat-shaped arrangement in which an approximate, non-crystallographic, twofold axis normal to the plane of the central metal is evident. The notable feature of the structure lies in the novel coordination mode adopted by the binucleating ligand. With respect to the binuclear complexes of this ligand, an electronic reorganization has occurred in one of the sidearms of both ligands which enables the formation of the pair of hydrazine bridges and also causes two of the terminal oxygen groups to become non-coordinating.


1987 ◽  
Vol 334 (3) ◽  
pp. C27-C30 ◽  
Author(s):  
Omar F.Z. Khan ◽  
Dario M. Frigo ◽  
Paul O'Brien ◽  
Andrew Howes ◽  
Michael B. Hursthouse

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