Chinese Journal of Magnetic Resonance ›› 1994, Vol. 11 ›› Issue (1): 65-70.

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STUDIES ON DEUTERATION OF[Co(Xacac)2(Me-en)]ClO4 COMPLEXES BY 1H NMR

Wu Guoxin1, Ma Guilin2   

  1. 1. Department of Chemistry, Wenzhou Normal College, Wenzhou 325003;
    2. Department of Chemistry, Normal College of Yangzhou University, Yangzhou 225002
  • Received:1992-11-20 Revised:1993-06-17 Published:1994-03-05 Online:2018-01-20

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Abstract: In this paper,the steric structures of the isomers,△(R)∧(S)and △(S)∧(R),for the new synthesized bis(3-substituted X-2,4-pentanedionato)(N-methyl-ethylenediamine)cobalt(Ⅲ) complexes.[Co (Xacac)2(Me-en)]ClO4(X=CH3,Cl,NO2) were assigned,and the rate constants of deuteration(kD, 34.0℃) at the chiral nitro-gen for the complexes were measured by 1H NMR method. The experimental results showed that the kD values are remarkably affected by the substituent groups.

Key words: Bis (3-substituted X-2,4-pentane dionato)(N-methyl-ethylenediamine) cobalt (Ⅲ) complex, 1H NMR, The rate constant of deuteration

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