Stabilization of NH Tautomers of Quinolines by Osmium and Ruthenium

Citations Over TimeTop 1% of 2006 papers

Abstract

Complexes OsH2Cl2(PiPr3)2 and RuH2Cl2(PiPr3)2 promote the tautomerization of quinoline and 8-methylquinoline to NH tautomers, which lie about 44 kcal.mol-1 above the usual CH tautomers. The NH tautomers are stabilized by coordination to the metal center and by means of a Cl...HN interaction. As a consequence, the six-coordinate elongated dihydrogen complexes OsCl2{kappa-C2-(HNC9H5R)}(eta2-H2)(PiPr3)2, the five-coordinate derivatives RuCl2{kappa-C2-(HNC9H5R)}(PiPr3)2, and the six-coordinate dihydrogen compounds RuCl2{kappa-C2-(HNC9H5R)}(eta2-H2)(PiPr3)2 (R = H, Me) have been isolated and characterized.

Related Papers

• → Cyclopentadienyl ruthenium and osmium complexes(1982)18 cited
• → Fluorophosphine complexes of ruthenium and osmium. Part 1. Syntheses and stereochemistry of dihydrido-complexes of ruthenium(II) and osmium(II)(1978)7 cited
• → The Simultaneous Determination of Ruthenium and Osmium by A Radiochemical Method(1967)3 cited
• → ChemInform Abstract: FLUOROPHOSPHINE COMPLEXES OF RUTHENIUM AND OSMIUM. PART 1. SYNTHESES AND STEREOCHEMISTRY OF DIHYDRIDO‐COMPLEXES OF RUTHENIUM(II) AND OSMIUM(II)(1978)
• USE OF DIANTIPYRINYLPROPYLMETHANE FOR THE PHOTOMETRIC DETERMINATION OF OSMIUM IN THE PRESENCE OF RUTHENIUM(1962)