Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Solvent Bulkiness Effect on N,N-Dimethylformamide Exchange of the o-Phenylenediamine-N,N,N′,N′-tetraacetatoferrate(III) Complex as Studied by a High-Pressure NMR Method
Masafumi MizunoShigenobu FunahashiNoriyuki NakasukaMotoharu Tanaka
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1991 Volume 64 Issue 6 Pages 1988-1990

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Abstract

Activation parameters for solvent exchange of the title complex in N,N-dimethylformamide (DMF) have been determined as follows: k(25°C)=(3.4±0.2)×107 s−1, ΔH\ eweq=18±3 kJ−1 mol−1, ΔS\ eweq=−40±10 J K−1 mol−1, and ΔV\ eweq=10±2 cm3 mol−1. The positive value of ΔV\ eweq indicates that the DMF exchange proceeds via a dissociative interchange mechanism.

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