Synthesis, Structure, and Catalytic Activity of Pd(II) Complex of Calixoxasmaragdyrin
DSpace at IIT Bombay
View Archive InfoField | Value | |
Title |
Synthesis, Structure, and Catalytic Activity of Pd(II) Complex of Calixoxasmaragdyrin
|
|
Creator |
CHATTERJEE, T
RAVIKANTH, M |
|
Subject |
MESO-ARYL SAPPHYRINS
PENTAPYRROLIC EXPANDED PORPHYRIN ELECTROCHEMICAL PROPERTIES METAL-COMPLEXES ANION-BINDING SMARAGDYRINS 5,10,15,20-TETRAPHENYLSAPPHYRIN HETEROSAPPHYRINS IDENTIFICATION HETEROATOMS |
|
Description |
The palladium(II) complex of calixoxasmaragdyrin was prepared in 80% yield by treating the free base calixoxasmaragdyrin with PdCl2 in CH3CN at reflux temperature. The crystal structure solved for Pd(II) calixoxasmaragdyrin indicates that the calixoxasmaragdyrin macrocycle is highly distorted and attained a boat shaped structure. The Pd(II) ion is coordinated to four pyrrolic nitrogens in square planar fashion, and it is placed at similar to 0.138 angstrom above from the four coordinating pyrrole nitrogens plane (N1N2N3N4). The Pd-N bond lengths are inequivalent, and the Pd(II) ion is positioned more toward the dipyrromethane moiety of calixoxasmaragdyrin. The complex shows one broad absorption band at 477 nm and is not very stable under redox conditions. The Pd(II) calixoxasmaragdyrin showed good catalytic activity in the Suzuki-Miyaura cross coupling reactions.
|
|
Publisher |
AMER CHEMICAL SOC
|
|
Date |
2014-12-28T12:33:52Z
2014-12-28T12:33:52Z 2014 |
|
Type |
Article
|
|
Identifier |
INORGANIC CHEMISTRY, 53(19)10520-10526
0020-1669 1520-510X http://dx.doi.org/10.1021/ic501595f http://dspace.library.iitb.ac.in/jspui/handle/100/16544 |
|
Language |
English
|
|