N–PtIV–H/N–H⋯PtII intramolecular redox equilibrium in a product of H–C(sp2) cleavage and unusual alkane/arene C–H bond selectivity of ([2.1.1]pyridinophane)PtII(CH3)+Electronic supplementary information (ESI) available: experimental details. See http://www.rsc.org/suppdata/cc/b2/b207797n/
[2.1.1]-(2,6)-Pyridinophane(L)-controlled alkane C–H bond cleavage: (L)PtMe2H+ as a precursor to the geometrically “tense” transient (L)PtMe+Electronic supplementary information (ESI) available: complete experimental and characterization data. See http://www.rsc.org/suppdata/nj/b3/b302055j/.
作者:Andrei N. Vedernikov、John C. Huffman、Kenneth G. Caulton
DOI:10.1039/b302055j
日期:2003.3.24
(η2-L)PtMe2 L=[2.1.1]-(2,6)-pyridinophane} is protonated at Pt to give (η3-L)PtHMe2+, where three pyridine ligands of the macrocycle L bind to Pt in a facial manner. This cation eliminates methane at a rate convenient for trapping of the T-shaped, 14-valence electron (η2-L)PtMe+ (based on DFT geometry optimization) by ethane, propane, n-butane, cyclopentane and cyclohexane to give (η3-L)Pt(olefin)H+