2 research outputs found
Structural Modification on Copper(I)-pyridylpyrimidine Complexes for Modulation of Rotational Dynamics, Redox Properties, and Phototriggered Isomerization
The
redox properties of copper pyridylpyrimidine complexes, which undergo
linkage isomerism based on pyrimidine ring rotation, were compared
under different coordination environments. A newly synthesized compound,
[Cu(Mepypm)(L<sub>Mes</sub>)]BF<sub>4</sub> (<b>1</b>·BF<sub>4</sub>, Mepypm = 4-methyl-2-(2′-pyridyl)pyrimidine, L<sub>Mes</sub> = 2,9-dimesityl-1,10-phenanthroline) was compared with
previously reported complexes of [Cu(MepmMepy)(L<sub>Mes</sub>)]BF<sub>4</sub> (<b>2</b>·BF<sub>4</sub>, MepmMepy = 4-methyl-2-(6′-methyl-2′-pyridyl)pyrimidine),
Cu(Mepypm)(DPEphos)]BF<sub>4</sub> (<b>3</b>·BF<sub>4</sub>, DPEphos = bis[2-(diphenylphosphino)phenyl]ether), [Cu(Mepypm)(L<sub>Anth</sub>)]BF<sub>4</sub> (<b>4</b>·BF<sub>4</sub>, L<sub>Anth</sub> = 2,9-bis(9-anthryl)-1,10-phenanthroline), and [Cu(Mepypm)(L<sub>Macro</sub>)]BF<sub>4</sub> (<b>5</b>·BF<sub>4</sub>).
Isomer ratios, isomerization dynamics, redox properties, and photoelectron
conversion functions varied with the coordination structure. Methyl
substituents on the 6-position of the pyridine moiety increased steric
repulsion and contributed to quicker rotation, enhanced photoluminescence,
and increased photodriven rotational isomerization
Structural Modification on Copper(I)-pyridylpyrimidine Complexes for Modulation of Rotational Dynamics, Redox Properties, and Phototriggered Isomerization
The
redox properties of copper pyridylpyrimidine complexes, which undergo
linkage isomerism based on pyrimidine ring rotation, were compared
under different coordination environments. A newly synthesized compound,
[Cu(Mepypm)(L<sub>Mes</sub>)]BF<sub>4</sub> (<b>1</b>·BF<sub>4</sub>, Mepypm = 4-methyl-2-(2′-pyridyl)pyrimidine, L<sub>Mes</sub> = 2,9-dimesityl-1,10-phenanthroline) was compared with
previously reported complexes of [Cu(MepmMepy)(L<sub>Mes</sub>)]BF<sub>4</sub> (<b>2</b>·BF<sub>4</sub>, MepmMepy = 4-methyl-2-(6′-methyl-2′-pyridyl)pyrimidine),
Cu(Mepypm)(DPEphos)]BF<sub>4</sub> (<b>3</b>·BF<sub>4</sub>, DPEphos = bis[2-(diphenylphosphino)phenyl]ether), [Cu(Mepypm)(L<sub>Anth</sub>)]BF<sub>4</sub> (<b>4</b>·BF<sub>4</sub>, L<sub>Anth</sub> = 2,9-bis(9-anthryl)-1,10-phenanthroline), and [Cu(Mepypm)(L<sub>Macro</sub>)]BF<sub>4</sub> (<b>5</b>·BF<sub>4</sub>).
Isomer ratios, isomerization dynamics, redox properties, and photoelectron
conversion functions varied with the coordination structure. Methyl
substituents on the 6-position of the pyridine moiety increased steric
repulsion and contributed to quicker rotation, enhanced photoluminescence,
and increased photodriven rotational isomerization