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17. Complexes of general formula. fac-[Mo CO)3(phosphine):] have the C-O stretching frequencies as given below.
Phosphines: ( A ) PMe3: ( B ) PPh2CI; ( C ) PF3; ( D ) PCI3
One of vco (cm-1) of higher frequency: (i) 2090: (i) 2040; (iii) 1977: (iv) 1945
The correct combination of phosphine and stretching frequency is
(A) ( A )-(i); ( B )-(ii): ( C )-(iii): ( D )-(iv)
(B) ( A )-(iv): ( B )-(iii); ( C )-(ii): ( D )-(i)
(C) ( A )-(iv): ( B )-(i): ( C )-(iii); ( D )-(ii)
(D) ( A )-(iv): ( B )-(iii): ( C )-(i); ( D )-(ii)
(E) ( A )-(i):( B )-(iv); ( C )-(iii): ( D )-(ii)


17. Complexes of general formula. fac-[M..-阿摩線上測驗