Photoswitchable organoplatinum complexes containing an azobenzene derivative of 3,6-di(2-pyridyl)pyridazine

被引:10
|
作者
Moustafa, Mohamed E. [1 ,2 ]
Boyle, Paul D. [1 ]
Puddephatt, Richard J. [1 ]
机构
[1] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada
[2] Suez Canal Univ, Dept Chem, Fac Educ, Arish, Egypt
基金
加拿大自然科学与工程研究理事会;
关键词
platinum; azobenzene; photochemistry; organometallic; PLATINUM(II) DIIMINE COMPLEXES; PHOTO-ISOMERIZATION; PHOTOISOMERIZATION; LIGANDS; CIS;
D O I
10.1139/cjc-2013-0588
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The new, unsymmetrical azobenzene-tagged ligand 4-(4-azobenzene)-3,6-di(2-pyridyl) pyridazine, adpp, forms complexes with platinum(II) and platinum(IV), which exist as a mixture of geometrical isomers. The complexes are characterized primarily by their NMR spectra, while the structures of the ligand and its complexes [PtMe2(adpp)], [PtBrMe2(CH2C6H4-4-t-Bu)(adpp)], and [PtBrMe2(CH(2)C(6)H3-(3),5-t-Bu-2)(adpp)] have been structurally characterized. In solution, the compounds undergo easy photochemical trans-cis switching of the azobenzene group, with subsequent slow thermal isomerization back to the more stable trans-azobenzene isomer.
引用
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页码:706 / 715
页数:10
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