PYRIDYL TO AMIDO AND AMIDO TO PYRIDYL ISOMERIZATION IN AN ISONICOTINAMIDE COMPLEX OF RUTHENIUM(III)

被引:10
作者
CHATTERJEE, D
BAJAJ, HC
机构
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1995年 / 20期
关键词
D O I
10.1039/dt9950003415
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reaction of [Ru-III(edta)(H2O)](-) (edta = ethylenediamine-N,N,N',N'-tetraacetate) with isonicotinamide (isna) was studied spectrophotometrically at different pH (6-10), isonicotinamide concentrations and ionic strengths. The pyridyl -N-co-ordinated complex [Ru(edta)(isna)](-) is stable at low pH (6.0). but undergoes intramolecular isomerisation at high pH (9.6) to yield the amido-N-co-ordinated [Ru(edta)(isna)](2-). Upon acidification, the amido-N-bonded species isomerises;back to the pyridyl-N-co-ordinated isomer.
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页码:3415 / 3417
页数:3
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