DIAMINOPLATINUM(II) COMPLEXES OF GLUTAMIC-ACID - OBVIOUS CHELATING ISOMERIZATION

Authors
LEE, YAHONG, JKJUNG, OSSOHN, YS
Issue Date
1994-08-20
Publisher
KOREAN CHEMICAL SOC
Citation
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.15, no.8, pp.669 - 673
Abstract
Coordination isomers of cis-(N-N)Pt(Glu) prepared by reaction of cis-(N-N)Pt(SO4) (N-N=2NH(3). ethylenediamine(en), (R,R)-1,2-diaminocyclohexane (DACH), N,N,N',N'-tetramethylethylenediamine (TMEDA)) with barium glutamate in water have been monitored and characterized by H-1-NMR,C-13-NMR, IR, and mass spectra. The reaction at room temperature affords the mixture of O,O'- and N,alpha O-chelated platinum(II) complexes. The O,O'-chelate initially formed isomerized to N,alpha O-chelate on standing for a long time or increasing temperature. The ratio of the two isomers at room temperature depends on the nature of the nitrogen donor coligand (N-N).
Keywords
CIS-DIAMMINEDIAQUAPLATINUM(II) CATION; PLATINUM(II) COMPLEXES; PT-195; N-15; CIS-DICHLORODIAMMINEPLATINUM(II); (METHYLIMINO)DIACETATE; IMINODIACETATE; C-13; CIS-DIAMMINEDIAQUAPLATINUM(II) CATION; PLATINUM(II) COMPLEXES; PT-195; N-15; CIS-DICHLORODIAMMINEPLATINUM(II); (METHYLIMINO)DIACETATE; IMINODIACETATE; C-13
ISSN
0253-2964
URI
https://pubs.kist.re.kr/handle/201004/145526
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