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Synthesis and properties of rhenium(I) bridged boron-dipyrromethene dyad

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Title Synthesis and properties of rhenium(I) bridged boron-dipyrromethene dyad
 
Creator MADHU, S
HINGE, VK
RAVIKANTH, M
 
Subject boron-dipyrromethene
benzimidazole
rhenium(I) coordination
electrochemistry
DFT studies
ENERGY-TRANSFER
BODIPY DYES
SELECTIVE DETECTION
LIVING CELLS
COMPLEXES
PORPHYRIN
CASSETTES
SINGLET
PROBE
 
Description We synthesized the hexa-coordinated Re(I) bridged BODIPY dyad 1 in decent yield by thermal reaction of benzimidazole substituted BODIPY 2 with Re(CO)(5)Cl. The dyad 1 was characterized by H-1, C-13, B-11, F-19 NMR, ESI-MS, FTIR, UV-vis, and electrochemical techniques. In Re(I) bridged dyad 1, the Re(I) ion is hexa-coordinated and coordinates with nitrogen atoms of two benzimidazole units, three axial carbonyl ligands and one chloride atom. The presence of three carbonyl groups in dyad 1 was verified by C-13 NMR and IR spectroscopy. The absorption and steady-state fluorescence spectra of Re(I) bridged BODIPY dyad showed a slightly broad and hypsochromically shifted absorption and emission bands compared to BODIPY 2. The electrochemical studies indicated that, the Re(I) bridge BODIPY dyad 1 was easy to reduce compared to BODIPY 2 supporting the electron deficient nature dyad upon Re(I) ion binding. The molecular structure of dyad 1 was further elucidated by DFT computational studies.
 
Publisher WORLD SCI PUBL CO INC
 
Date 2014-12-28T11:24:25Z
2014-12-28T11:24:25Z
2014
 
Type Article
 
Identifier JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 18(7)535-541
1088-4246
1099-1409
http://dx.doi.org/10.1142/S1088424614500266
http://dspace.library.iitb.ac.in/jspui/handle/100/16351
 
Language English