Carbonyl(η ⁵ ‐Cyclopentadienyl)‐(Tetrafluoroborato)Molybdenum and ‐ Tungsten Complexes

Abstract

Chapter One COMPLEXES WITH WEAKLY COORDINATED LIGANDS1. Metal Complexes with Weakly Bonded Anions: General Considerations 2. Carbonyl(f/ 5 -cyclopentadienyl)(tetrafluoroborato)molybdenum and -tungsten complexes: CpM(CO) 2 (L) (BF 4 ) (M = Mo, W; L = CO, PPh 3 ) A. Tricarbonyl(?/ 5 -cyclopentadienyl)(tetrafluoroborato) molybdenum and -tungsten B.Dicarbonyl(?7 5 -cyclopentadienyl)(tetrafluoroborato) (triphenylphosphine)molybdenum and -tungsten,Carbonyl(?/ 5 -cyclopentadienyl)bis(diphenylacetylene) molybdenum (1 + ) Tetrafluoroborate(l -) 11 E. Carbonyl(?y 5 -cyclopentadienyl)(diphenylacetylene) (triphenylphosphine) molybdenum(l + ) Tetrafluoroborate(l -) F. (Acetone)(tricarbonyl)(f/ 5 -cyclopentadienyl)molybdenum-(1 + ) and -tungsten(l + ) Tetrafluoroborate(l -) 3. Pentacarbonyl(tetrafluoroborato)rhenium and -manganese and Reactions Thereof: M(CO) 5 (BF 4 ) (Μ = Mn, Re) 15 A. Pentacarbonylmethylrhenium: Re(CO) 5 Me B. Pentacarbonyl(tetrafluoroborato)rhenium(I) C. Pentacarbonyl(^2-ethene)rhenium(l + ) Tetrafluoroborate(l -): Re(CO) 5 (>/ 2 -C 2 H 4 ) + D. Octadecacarbonyl-bis(^3-carbon dioxide)-tetrarhenium: Re 4 (CO) 18 (C0 2 ) 2 20 4. Iridium(III) Complexes with the Weakly Bonded Anions [BF 4 ] and [OS0 2 CF 3 ] 22 A. Carbonylchlorohydrido(tetrafluoroborato)bis(triphenylphosphine)iridium(III): Ir(Cl)(CO)(PPh 3 ) 2 (H)(BF 4 ) 23 xiii xiv Contents Β. Carbonylchloromethyl(tetrafluoroborato)bis(triphenylphosphine)iridium(III): Ir(Cl)(CO)(PPh 3 ) 2 (CH 3 )(BF 4 ) C. Chloro(dinitrogen)hydrido(tetrafluoroborato)bis(triphenylphosphine)iridium(III): Ir(Cl)(N 2 )(PPh 3 ) 2 (H)(BF 4 ) D. Carbonylhydridobis(trifluoromethanesulfonato)bis(triphenylphosphine)iridium(III): Ir(CO)(PPh 3 ) 2 (H)(0 3 SCF 3 ) 2 5. cis-Chlorobis(triethylphosphine)(trifluoromethanesulfonato)platinum(II) * 6. Tricarbonyltris(nitrile) Complexes of Cr, Mo, and W: M(CO) 3 (NCEt) 3 (M = Cr, Mo, W) A. Tricarbonyltris(propionitrile)tungsten(0) B. Tricarbonyltris(propionitrile)molybdenum(0) C. Tricarbonyltris(propionitrile)chromium(0) 7. The Synthesis of Molybdenum and Tungsten Dinitrogen Com plexes: MoCl 4 (L) 2 , MoCl 3 (L) 3 (L = NCMe, THF), Mo(N 2 ) 2 (dppe) 2 , W(N 2 ) 2 (dppe) 2 A. Bis(acetonitrile)tetrachloromolybdenum(IV), [MoCl 4 (CH 3 CN) 2 ] B. Tetrachlorobis(tetrahydrofuran)molybdenum(IV), [MoCl 4 (THF) 2 ] C. Trichlorotris(tetrahydrofuran)molybdenum(III), [MoCl 3 (THF) 3 ] D. Trichlorotris(acetonitrile)molybdenum(III), [MoCl 3 (MeCN) 3 ] E. ira«5-Bis(dinitrogen)bis[ 1,2-ethanediylbis-(diphenylphosphine)]molybdenum(0), trans-[Mo(N 2 ) 2 (Ph 2 PCH 2 CH 2 PPh 2 ) 2 ] F. Tetrachlorobis(triphenylphosphine)tungsten(IV), [WCl 4 (PPh 3 ) 2 ] 40 G. Tetrachloro[l,2-ethanediylbis(diphenylphosphine)]tungsten(IV), [WCl 4 (Ph 2 PCH 2 CH 2 PPh 2 )]... H. irans-Bis(dinitrogen)bis[l,2-ethanediylbis(diphenylphosphine)]tungsten(0), irans-[W(N 2 ) 2 (Ph 2 PCH 2 CH 2 PPh 2 ) 2 ] 8. irans-Bis[l,2-ethanediylbis(diphenylphosphine)]bis-(isocyanomethane)tungsten(O): trans-[W(CNR) 2 (Ph 2 PCH 2 CH 2 PPh 2 ) 2 ] 9. Tricarbonyl(cycloheptatriene)molybdenum(0): Mo(CO) 3 (C 7 H ...