Photoisomerization and other reactions of dimethylplatinum(IV) complexes with iminodiacetate and (methylimino)diacetate

Appleton T.G., Berry R.D., Hall J.R. and Sinkinson J.A. (1991) Photoisomerization and other reactions of dimethylplatinum(IV) complexes with iminodiacetate and (methylimino)diacetate. Inorganic Chemistry, 30 20: 3860-3865.

Author Appleton T.G.
Berry R.D.
Hall J.R.
Sinkinson J.A.
Title Photoisomerization and other reactions of dimethylplatinum(IV) complexes with iminodiacetate and (methylimino)diacetate
Journal name Inorganic Chemistry   Check publisher's open access policy
ISSN 0020-1669
Publication date 1991-01-01
Sub-type Article (original research)
Volume 30
Issue 20
Start page 3860
End page 3865
Total pages 6
Subject 1604 Human Geography
Abstract The ligands L 2-, RN(CH 2CO 2 -) 2 (R = CH 3, H), react with a solution of [{Pt(CH 3) 2(OH) 2}·1.5H 2O] n in alkali to give initially Pt(CH 3) 2(OH) 2(L-N,O) 2- in which the ligand coordinates bidentate trans to the methyl groups. Ring closure to form Pt-(CH 3) 2(OH)(L-N,O,O′) - is very slow under alkaline conditions, but is much faster in acid solution, to give Pt(CH 3) 2(H 2O)(L-N,O,O′) (N trans to methyl). fac-Pt(CH 3) 2Br(H 2O) 3 + with LH - gives Pt(CH 3) 2Br(L-N,O,O′) - (N trans to methyl). Irradiation with a mercury lamp causes facile isomerization to the isomer with N trans to bromide. This reaction occurs without dissociation of L 2-. A side reaction at high pH produces Pt(CH 3) 2(OH)(L-N,O,O′) - (N trans to hydroxide). The colorless aqua complexes Pt(CH 3) 2(H 2O)(L) are photoisomerized much less efficiently than the pale yellow bromo complexes. Thermal isomerizations are very much slower.
Q-Index Code C1
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
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Created: Tue, 13 Sep 2016, 11:45:01 EST by System User