Abstract
This paper covers Pt(II) complexes of the compositions Pt(η3-P1C1C2)(Y) (Y = NL or I) and Pt(η3-P1C1N1)(Y), Y = OL, NL, CL, Cl or Br). These complexes crystallized in four crystal classes: monoclinic (9 examples), triclinic (3 examples), orthorhombic (3 examples), and tetragonal (2 examples). The structural parameters (Pt-L, L-Pt-L) are analyzed and discussed with attention to the distortion of square-planar geometry about the Pt(II) atoms and trans-influence. These data are compared and discussed with those of Pt(η3-P1N1N2)(Y), Pt(η3-P1N1X1)(Y), (X1=O1, C1, S1, Se1), Pt(η3-N1P1N2)(Cl), Pt(η3-S1P1S2)(Cl), Pt(η3-P1S1Cl1)(Cl), and Pt(η3-P1Si1N1)(OL) types. Each heterotridentate ligand creates two metallocyclic rings with a common central ligating atom. These η3-ligands form twenty-three types of metallocycles and differ by the number and type of the atoms involved in the metallocyclic rings.
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