caa a22 4500 465775764 CHVBK 20180323111941.0 cr unu---uuuuu 170327e19900801xx s 000 0 eng 10.1007/BF01061937 doi (NATIONALLICENCE)springer-10.1007/BF01061937 Synthesis, characterisation and acid and iron(III) catalysed aquation of trans -bis(Hmalonato)bis(trimethylenediamine) cobalt(III) ion [Elektronische Daten] [Nigamananda Das, Rabindra Nanda] Summary: Trans-bis(malH)bis(tmd)cobalt(III) (malH2=HO2CCH2CO2H; tmd=trimethylenediamine) has been synthesised and its acid and FeIII catalysed aquation have been investigated in the temperature range 30-45°C. The major product in both cases iscis-[Co(tmd)2(malH)-OH2]2. The rate laws of the acid and FeIII catalysed aquations are given by $$ - d ln[complex]_\tau /dt = k_0 + k_1 [H^ + ]$$ and $$ - d ln[complex]_\tau $$ $$ = \frac{{k_0 + k_1 [H^ + ] + k_M K_M [Fe^{III} ]/[H^ + ]}}{{1 + K_M [Fe^{III} ]/[H^ + ]}}$$ in the range of [H+]T=0.025-0.5, I=0.5 mol dm−3 and [FeIII]T=0.01-0.06, I=0.8 mol dm−3, respectively. The rates and activation parameters of k0, k1 and kM paths are reported. The rates of both catalysed aquations are found to beca. 200 times faster than those for the corresponding ethylenediamine complex. Chapman and Hall Ltd, 1990 Das Nigamananda Department of Chemistry, Utkal University, 751004, Bhubaneswar, India aut Nanda Rabindra Department of Chemistry, Utkal University, 751004, Bhubaneswar, India aut Transition Metal Chemistry Kluwer Academic Publishers 15/4(1990-08-01), 293-296 0340-4285 15:4<293 1990 15 11243 https://doi.org/10.1007/BF01061937 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01061937 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Das Nigamananda Department of Chemistry, Utkal University, 751004, Bhubaneswar, India aut NATIONALLICENCE 700 1- Nanda Rabindra Department of Chemistry, Utkal University, 751004, Bhubaneswar, India aut NATIONALLICENCE 773 0- Transition Metal Chemistry Kluwer Academic Publishers 15/4(1990-08-01), 293-296 0340-4285 15:4<293 1990 15 11243 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer