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Title: | Two nearly isoformular isomeric dinuclear Platinum(II) complexes with planar and butterfly [Pt-2(mu(2)-S)(2)] core structures |
Authors: | Bernes, S Villanueva, L Torrens, H |
Issue Date: | 2008 |
Abstract: | Two dinuclear Pt-II complexes bearing fluorinated phosphine and thiolate ligands were synthesized from mononuclear starting materials, and characterized. Complex [(PPh2(C6F5))(SC6F5)Pt(mu(2)-SC6F5)(2)Pt(SC6F5)(PPh2(C6F5))] has phospine ligands arranged trans and presents a planar [Pt-2(mu(2)-S)(2)] core structure, imposed by symmetry. In contrast, the almost isoformular complex [(PPh(C6F5)(2))(SC6F5)Pt(mu(2)-SC6F5)(2)Pt(SC6F5)(PPh(C6F5)(2))] revealed to be a butterfly molecule with phosphine ligands in a cis configuration. In both complexes, two pentafluorobenzenethiolate ligands bridge metal centers in an anti conformation. Both compounds have been X-ray characterized. Trans complex: a = 11.8576(13) angstrom, b = 12.3237(14) angstrom, c = 13.4644(16) angstrom, alpha = 90.528(9)degrees, beta = 113.866(9)degrees, gamma = 107.698(9)degrees, P (1) over bar cis complex: a = 24.368(2) angstrom, b = 15.043(2) angstrom, c = 37.596(7) angstrom, beta = 93.69(1)degrees, C2/c. |
URI: | http://hdl.handle.net/11154/2243 |
ISSN: | 1074-1542 |
Appears in Collections: | Ciencias
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