Carbon-13 and aluminium-27 nuclear spin relaxation in triethylaluminum

Carbon-13 spin–lattice relaxation times and nuclear Overhauser enhancement factors are reported for triethylaluminium in toluene-d8 solution in the temperature interval 208–318 K. Aluminium-27 linewidths are reported for the same solution in the temperature range 212–334 K. The effective correlation times at different positions in the molecule are determined and used for qualitative discussion of internal motions.

[1]  J. B. Lambert,et al.  Rates from the coalescence of relaxation times , 1980 .

[2]  J. Ripmeester,et al.  Methyl group rotation and bonding in solid hexamethyldialuminum, Al2(CH3)6 , 1979 .

[3]  J. Kowalewski,et al.  Determination of NOE factors using the dynamic overhauser enhancement technique combined with a nonlinear least-squares-fitting procedure , 1978 .

[4]  O. Yamamoto,et al.  Analysis of the NMR line shape dually modulated by the chemical exchange and by the scalar coupling relaxation. 13C NMR spectrum of the trimethylaluminum dimer. , 1978 .

[5]  G. Prakash,et al.  C nuclear magnetic resonance study of five- and six-coordinated carbon in nonclassical organometallic compounds: Dimeric trialkyl-, tricyclopropyl-, and triarylaluminums and some nido and closo carboranes. , 1977, Proceedings of the National Academy of Sciences of the United States of America.

[6]  George C. Levy,et al.  A three-parameter non-linear procedure for fitting inversion-recovery measurements of spin-lattice relaxation times , 1977 .

[7]  D. Grant,et al.  Proton‐decoupled carbon‐13 relaxation in 13CH2 and 13CH3 spin systems , 1975 .

[8]  O. Yamamoto 27Al–13C coupling constants in trimethylaluminum dimer and its derivatives , 1975 .

[9]  I. R. Peat,et al.  Time saving in 13C spin-lattice relaxation measurements by inversion-recovery , 1975 .

[10]  K. Hayamizu,et al.  Bridge-terminal exchange of aluminum trialkyl dimers , 1974 .

[11]  Martin B. Smith The monomer-dimer equilibria of liquid aluminum alkyls : IV. Triethylaluminum in mesitylene , 1972 .

[12]  G. C. Levy,et al.  Carbon-13 NMR study of aliphatic amides and oximes. Spin-lattice relaxation times and fast internal motions , 1972 .

[13]  M. Dewar,et al.  Nuclear quadrupole resonance spectra of some alkylaluminum derivatives , 1971 .

[14]  L. Petrakis Quadrupolar relaxation of aluminum-27 nuclear magnetic resonance in aluminum alkyls , 1968 .

[15]  K. Ramey,et al.  Nuclear Magnetic Resonance Study of Aluminum Alkyls , 1965 .

[16]  O. Yamamoto The Low Temperature NMR Spectrum of Triethylaluminum , 1964 .

[17]  H. Carr,et al.  The Principles of Nuclear Magnetism , 1961 .

[18]  E. Hoffmann Adiabatische Kryometrie und ihre Anwendung auf Organoaluminium‐Verbindungen , 1960 .

[19]  R. E. Rundle,et al.  Electron Deficient Compounds. VII. The Structure of the Trimethylaluminum Dimer , 1953 .

[20]  H. S. Gutowsky,et al.  Electron Deficient Molecules. II. Aluminum Alkyls , 1946 .

[21]  L. Petrakis,et al.  Aluminum-27 and Proton NMR of Organoaluminums , 1970 .

[22]  N. Müller,et al.  PROTON MAGNETIC RESONANCE SPECTRUM OF ALUMINUM TRIMETHYL DIMER , 1960 .