Building Blocks for Molecular Polygons Based on Platinum Vertices and Polyynediyl Edges
作者:Brenna K. Collins、Nancy Weisbach、Frank Hampel、Nattamai Bhuvanesh、John A. Gladysz
DOI:10.1021/acs.organomet.2c00573
日期:——
(for 5a) a luminescent diplatinum byproduct with trans Pt((C≡C)2SiMe3)2 units. 5a and 6b hydrolyze in the presence of F– to 3a,b (92–93%). Reaction of 2a and 3a (HNEt2/cat. CuI) affords the Pt4C16 polygon ([(CH2(CH2P(p-C6H4OMe)2)2)Pt(C≡C)2]4 as an H2NEt2+ Cl– adduct (66%). The 13C1H} NMR spectra of 3a–d, 5a, and 6a,b,d feature complex AMXX′ (CPtPP′) spin systems, and simulations allow J values to be