Aluminium(III) porphyrin based dimers and trimers: synthesis, spectroscopy and photochemistry

被引:49
作者
Kumar, PP [1 ]
Maiya, BG [1 ]
机构
[1] Univ Hyderabad, Sch Chem, Hyderabad 500046, Andhra Pradesh, India
关键词
D O I
10.1039/b208339f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The well-known oxophilicity of aluminum(III) ion and the well-defined redox and photochemical properties of aluminum(III) porphyrins have been exploited to synthesize the functionally active, 'axial-bonding'-type free base aluminum(III) porphyrin dimer (H-2-Al) and free base [aluminum(III) porphyrin](2) trimer (H-2-Al-2), as well as the corresponding copper(II) (Cu-Al, Cu-Al-2) and zinc(II) (Zn-Al, Zn-Al-2) derivatives. These dimeric and trimeric species have been fully characterized by mass ( FAB), UV/VIS, proton nuclear magnetic resonance (1D and H-1-H-1 COSY) and electron spin resonance spectroscopies and also by the differential pulse voltammetric method. Comparison of their spectroscopic and electrochemical data with those of the corresponding monomeric porphyrins reveals that there is no apparent ring-to-ring interactions in these vertically linked dimers and trimers. The fluorescence quantum yields and singlet state life times were found to be lower for H-2-Al and H-2-Al-2 in comparison with those of the monomeric chromophores. Electronic energy transfer from the aluminum(III) porphyrin to the free base subunit is detected in both H-2-Al and H-2-Al-2. Finally, a comparison is made between the presently reported aluminum( III) porphyrin based arrays and the previously reported analogous arrays based on tin(IV), germanium( IV) and phosphorous( V) porphyrins with regard to their architectural features, spectroscopic properties and photochemical activities.
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页码:619 / 625
页数:7
相关论文
共 51 条
[41]   Optically active ruthenium porphyrins: chiral recognition and asymmetric catalysis [J].
Simonneaux, G ;
Le Maux, P .
COORDINATION CHEMISTRY REVIEWS, 2002, 228 (01) :43-60
[42]   FLUORESCENCE STUDIES ON A SUPRAMOLECULAR PORPHYRIN BEARING ANTHRACENE DONOR MOIETIES [J].
SIRISH, M ;
MAIYA, BG .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1995, 85 (1-2) :127-135
[43]   QUENCHING OF FLUORESCENCE IN A SERIES OF COVALENTLY-LINKED PORPHYRIN DINITROBENZENE COMPOUNDS [J].
SIRISH, M ;
MAIYA, BG .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1994, 77 (2-3) :189-200
[44]   Intramolecular excitation energy transfer in isomeric porphyrin anthracene dyads [J].
Sirish, M ;
Kache, R ;
Maiya, BG .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1996, 93 (2-3) :129-136
[45]   Light-harvesting heptadecameric porphyrin assemblies [J].
Sugou, K ;
Sasaki, K ;
Kitajima, K ;
Iwaki, T ;
Kuroda, Y .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (07) :1182-1183
[46]  
SUPPAN P, 1988, CHIMIA, V42, P320
[47]   Synthesis and photophysical properties of "center-to-edge" type phosphorus(v) porphyrin arrays [J].
Susumu, K ;
Tanaka, K ;
Shimidzu, T ;
Takeuchi, Y ;
Segawa, H .
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1999, (07) :1521-1529
[48]   RELAXATION PROCESS OF THE SINGLET EXCITED-STATE OF WHEEL-AND-AXLE-TYPE PHOSPHORUS(V) POMPHYRIN DIMERS [J].
SUSUMU, K ;
KUNIMOTO, K ;
SEGAWA, H ;
SHIMIDZU, T .
JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (01) :29-34
[49]   Cyclic metalloporphyrin trimers: H-1 NMR identification of trimeric heterometallic (iron(III), gallium(III), manganese(III)) 2-hydroxy-5,10,15,20-tetraphenylporphyrins and X-ray crystal structure of the iron(III) 2-hydroxy-5,10,15,20-tetra-p-tolylporphyrin trimer [J].
Wojaczynski, J ;
LatosGrazynski, L ;
Olmstead, MM ;
Balch, AL .
INORGANIC CHEMISTRY, 1997, 36 (20) :4548-4554
[50]   SYNTHESIS AND CHARACTERIZATION OF GALLIUM(III) 2-HYDROXY-5,10,15,20-TETRAPHENYLPORPHYRIN - A NOVEL EXAMPLE OF A CYCLIC GALLIUM(III) PORPHYRIN TRIMER [J].
WOJACZYNSKI, J ;
LATOSGRAZYNSKI, L .
INORGANIC CHEMISTRY, 1995, 34 (05) :1054-1062