Quality Control of Diiodo(1,5-cyclooctadiene)platinum(II). Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Diiodo(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12I2Pt, CAS is 12266-72-7, about A new class of pnicogen-transition metal adducts: a stereo active lone pair at a 10-Sb-4 antimony center. Author is Stewart, Constantine A.; Arduengo, Anthony J. III.
L (I) reacted with (COD)PtI2 (COD = 1,5-cyclooctadiene) in toluene to give cis-PtL2I2 in which L coordinates through the Sb atom. L reacted with trans-[MePt(PPh3)2(Me2CO)]SbF6 in ether to give trans-MePt(PPh3)2L. trans-MePt(PPh3)2L.0.5(Me3Si)2O is monoclinic, space group P21/c, with a 1246.6(3), b 1752.9(4), c 2749.3(5) pm, β 92.64(2)°, Z = 4, d.(calculated) = 1.49 g cm3, R = 0.065, Rw = 0.090 for 4337 reflections. Changes in the bond angles and lengths in L upon coordination are attributed to steric congestion at the Pt atom due to 2 trans PPh3 ligands. In spite of steric congestion the L system maintains its 10-electron count and planar ligand backbone. NMR data for both complexes require the presence of a stereoactive bond pair at the Sb center.
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