With a short statement explain why the appropriate field with a cross (x), Indicate the potential information content of the following nmr experiments in regard to chemical shifts (cs) as well as scalar (sc) and quadrupolar coupling (qc):

a) 13C-CPMAS of solid methane ( 1H-decoupled) ( 13C: spin , 1% nat. abundance): cs (X) sc (X) qc (X) none of these ( )

b) 13C-CP of solid methane (without 1H-decoupling and MAS) cs ( ) sc ( ) qc ( ) none of these (X)

c) 2H solid state nmr of a powdered [W-D] complex without MAS ( 2H: spin 1, 99% labeled at hydride site) cs ( ) sc (X) qc (X) none of these ( )

d) 2H-T1(min) of a high-spin [Fe-D] complex in the liquid phase cs ( ) sc ( ) qc ( ) none of these (X)

e) 2H-nmr of a [Ru-D] complex in the liquid phase cs (X) sc ( ) qc ( ) none of these ( )