Koordination des dreizähnigen makrocyclischen Liganden 1-Thia-4,7-diazacyc!ononan an Palladium(II) und Platin(II) / Coordination of the Tridentate Macrocyclic Ligand 1-Thia-4,7-diazacyclononane to Palladium(II) and Platinum(II)
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Media type:
E-Article
Title:
Koordination des dreizähnigen makrocyclischen Liganden 1-Thia-4,7-diazacyc!ononan an Palladium(II) und Platin(II) / Coordination of the Tridentate Macrocyclic Ligand 1-Thia-4,7-diazacyclononane to Palladium(II) and Platinum(II)
Description:
<jats:p>The reaction of PdAc<jats:sub>2</jats:sub> and K<jats:sub>2</jats:sub>PtCl<jats:sub>4</jats:sub> with the ligand 1-thia-4,7-diazacyclononan (C<jats:sub>6</jats:sub>H<jats:sub>14</jats:sub>N<jats:sub>2</jats:sub>S - L) yield crystals of [PdL<jats:sub>2</jats:sub>](PF<jats:sub>6</jats:sub>)<jats:sub>2</jats:sub> (4) and [PtL<jats:sub>2</jats:sub>]Br<jats:sub>2</jats:sub>-H<jats:sub>2</jats:sub>O (5), respectively. The structures of 4 and 5 have been determined.</jats:p>
<jats:p>Crystal data: 4, monoclinic, space group P2<jats:sub>1</jats:sub>/c, a = 719.2(1), b = 1712.5(3), c = 936.8(2) pm. β = 99.15°, Z = 2; 1708 reflections, R = 0.029.</jats:p>
<jats:p>5, monoclinic, space group P2<jats:sub>1</jats:sub>/c, a = 1682(2). b = 786(1), c = 1573(1) pm. β = 108.1(1)°, Z - 4; 1706 reflections, R = 0.070. 4 contains octahedrally coordinated Pd(II); in addition to the square planar PdN<jats:sub>4</jats:sub> group (mean Pd -N bond length 206 pm) the S-donor atoms are weakly coordinated in the axial positions (Pd-S: 303.4(1) pm). In 5, however, Pt(II) is in a square planar ligand environment. The S-donor atoms are bent away from the axial positions of the central atom.</jats:p>