TY - JOUR
T1 - cis- and trans-Dichloro(3,6-dihydro-1,2-oxazine-N)(dimethyl sulfoxide-S)-platinum(II)
AU - Dyksterhouse, R. Max
AU - Howell, Bob A.
AU - Squattrito, Philip J.
PY - 2000/1
Y1 - 2000/1
N2 - Both the cis, (I), and trans, (II), isomers of the title complex, [PtCl2(C4H7NO)(C2H6OS)], possess relatively undistorted square-planar geometries about the Pt atoms. For (I), cis L-Pt-L angles are in the range 88.8 (2)-91.08 (8)°, while trans angles are 178.61 (8) and 179.4 (2)°. For (II), cis L-Pt-L 86.1 (3)-93.7 (1)°, and trans L-Pt-L 175.5(1) and 179.1 (3)°. The dimethyl sulfoxide (dmso) ligand adopts a normal pyramidal geometry in both complexes. In (I), the S=O bond essentially eclipses the adjacent Pt-N bond, while the oxazine ligand in (I) is twisted so as to avoid steric interactions with the adjacent chloride ligand. By contrast, the dmso ligand in (II) is rotated such that the S=O bond is approximately perpendicular to the square plane, while the oxazine ligand is once again twisted out of the plane by a similar amount as in (I). These are the first structural examples of square-planar platinum(II) complexes containing a 1,2-oxazine ligand.
AB - Both the cis, (I), and trans, (II), isomers of the title complex, [PtCl2(C4H7NO)(C2H6OS)], possess relatively undistorted square-planar geometries about the Pt atoms. For (I), cis L-Pt-L angles are in the range 88.8 (2)-91.08 (8)°, while trans angles are 178.61 (8) and 179.4 (2)°. For (II), cis L-Pt-L 86.1 (3)-93.7 (1)°, and trans L-Pt-L 175.5(1) and 179.1 (3)°. The dimethyl sulfoxide (dmso) ligand adopts a normal pyramidal geometry in both complexes. In (I), the S=O bond essentially eclipses the adjacent Pt-N bond, while the oxazine ligand in (I) is twisted so as to avoid steric interactions with the adjacent chloride ligand. By contrast, the dmso ligand in (II) is rotated such that the S=O bond is approximately perpendicular to the square plane, while the oxazine ligand is once again twisted out of the plane by a similar amount as in (I). These are the first structural examples of square-planar platinum(II) complexes containing a 1,2-oxazine ligand.
UR - http://www.scopus.com/inward/record.url?scp=0343148637&partnerID=8YFLogxK
U2 - 10.1107/S0108270199013803
DO - 10.1107/S0108270199013803
M3 - Article
C2 - 10710671
AN - SCOPUS:0343148637
VL - 56
SP - 64
EP - 66
JO - Acta Crystallographica Section C: Crystal Structure Communications
JF - Acta Crystallographica Section C: Crystal Structure Communications
SN - 0108-2701
IS - 1
ER -