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Citation: Wang Han-Ming, Wang Er-Kang. Cupric (II)-2,2'-Biquinoline Transfer Across the Liquid/Liquid Interface and Kinetics of Complexation[J]. Acta Physico-Chimica Sinica, ;1994, 10(05): 418-423. doi: 10.3866/PKU.WHXB19940509 shu

Cupric (II)-2,2'-Biquinoline Transfer Across the Liquid/Liquid Interface and Kinetics of Complexation

1.
Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Acadmey of Sciences, Changchun 130022

Received Date: 21 November 1992
Available Online: 15 May 1994

Cupric (Ⅱ) ion transfer across the water/nitrobenzene interface facilitated by 2,2'-biqulnoline was investigated by cyclic voltammtry. Transfer process was controlled by diffusion. At [BQ]_(NB)>>[Cu~(2+)]_W, transfer ion was found to be 1:2 Cu~(2+)-biquinoline complex. Kinetics of complex action was described. Diffusion coefficient of Cu(BQ)~(2+)_2 in water phase was estimated as 3.8×10~(-5) cm~2/s and rate constant k of this complex action was determined as 2.6×10~(-4) s~(-1). At [Cu~(2+)]_W>>[BQ]_(NB), no transfer peaks were observed and 1:1 Cu~(2+)-biquinoline complex was formed.
- Water/nitrobenzene interface,
- Cyclic voltammetry,
- Ion transfer,
- Kinetic of complexation,
- 2,2-biquinoline,
- Cupric (II)
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