Issue 4, 2003

[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+

Abstract

2-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+ and CH4. The crystal structure of (η3-L)Pt(cyclohexene)H+ as its BArF−4 salt is reported.

Graphical abstract: [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+

Supplementary files

Article information

Article type
Letter
Submitted
12 Feb 2003
Accepted
12 Feb 2003
First published
18 Mar 2003

New J. Chem., 2003,27, 665-667

[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+

A. N. Vedernikov, J. C. Huffman and K. G. Caulton, New J. Chem., 2003, 27, 665 DOI: 10.1039/B302055J

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