224824-50-4Relevant academic research and scientific papers
Reactivity of [trans-PtH(C≡CC5H4N-2) (PPh3)2] toward [cis-Pt(C6F5)2(thf)2]. Synthesis of an Unusual Triplatinum Cluster-Substituted Platinum Complex
Berenguer, Jesús R.,Eguizábal, Eduardo,Falvello, Larry R.,Forniés, Juan,Lalinde, Elena,Martín, Antonio
, p. 1653 - 1662 (1999)
The complex [trans-PtH(C≡CR)PPh3)2] (1) (R = 2-pyridyl) reacts with [cis-Pt(C6F5)2(thf)2] under mild conditions to afford initially the 1:1 adduct (trans,cis-(PPh3)2(H)Pt(μ-1κC α:η2αβ: 2κN-C≡CC5H4N-2)Pt(C6F 5)2] (2), which finally rearranges to form a mixture of [cis,trans-(PPh3)(C6F5)2Pt -(μ-1κCα:2κN-C≡CC 5H4N-2)Pt+(H)(PPh3)2] (5) (X-ray) and a tetranuclear cluster [{cis-Pt(C6F5)2(PPh3)(μ 3-1κCα:2κCβ:3κN-C2C 5H4N-2)}{Pt3(C6F5) 2(μ33κCα:η2 α,β:2κN-CH= CHC5H4N-2)(PPh3)2}] (3). Complex 3, characterized crystallographically, can be described as a formal zwitterionic cationic Pt3 cluster-substituted alkynyl platinate complex [Pt]--C≡ CC5H4N-2[Pt3]+ (3A), rather distorted. Another important feature in 3 is the presence of a vinyl group capping the Pt3 framework. Treatment of 2 with the equimolar amount of PPh3 allows the synthesis not only of 5 but also of the less polar isomeric complex [trans,cis-(PPh3) 2(H)Pt(μ-1κCα:2κN-C≡CC5H 4N-2)Pt(C6F5)2(PPh3)] (4).
