Probing bistability in Fe(II) and Co(II) complexes with an unsymmetrically substituted quinonoid ligand.
Probing bistability in Fe(II) and Co(II) complexes with an unsymmetrically substituted quinonoid ligand.
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探测具有不对称取代醌配体的 Fe(II) 和 Co(II) 配合物的双稳定性
DOI:
10.1039/c6dt00757k
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发表时间:
2016
影响因子:
4
通讯作者:
B. Sarkar
中科院分区:
文献类型:
--
作者:
M. van der Meer;Y. Rechkemmer;F. Breitgoff;S. Dechert;R. Marx;M. Dörfel;P. Neugebauer;J. van Slageren;B. Sarkar
The generation of molecular platforms, the properties of which can be influenced by a variety of external perturbations, is an important goal in the field of functional molecular materials. We present here the synthesis of a new quinonoid ligand platform containing an [O,O,O,N] donor set. The ligand is derived from a chloranilic acid core by using the [NR] (nitrogen atom with a substituent R) for [O] isoelectronic substitution. Mononuclear FeII and CoII complexes have been synthesized with this new ligand. Results obtained from single crystal X-ray crystallography, NMR spectroscopy, (spectro)electrochemistry, SQUID magnetometry, multi-frequency EPR spectroscopy and FIR spectroscopy are used to elucidate the electronic and geometric structures of the complexes. Furthermore, we show here that the spin state of the FeII complex can be influenced by temperature, pressure and light and the CoII complex displays redox-induced spin-state switching. Bistability is observed in the solid-state as well as in solution for the FeII complex. The new ligand presented here, owing to the [NR] group present in it, will likely have more adaptability while investigating switching phenomena compared to its [O,O,O,O] analogues. Thus, such classes of ligands as well as the results obtained on the reversible changes in physical properties of the metal complexes are likely to contribute to the generation of multifunctional molecular materials.
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影响因子:
4.9
作者:
F. Cotton;Jia;Zhong Li;C. A. Murillo;Joseph H. Reibenspies
通讯作者:
Joseph H. Reibenspies
影响因子:
--
作者:
Qing‐Zheng Yang;O. Siri;P. Braunstein
通讯作者:
P. Braunstein
影响因子:
4.6
作者:
K. Min;A. Rheingold;A. DiPasquale;Joel S A Miller
通讯作者:
Joel S A Miller
DOI:
10.1515/znb-1999-0910
发表时间:
1999
期刊:
Zeitschrift für Naturforschung B
影响因子:
--
作者:
K. Heinze;G. Huttner;L. Zsolnai
通讯作者:
L. Zsolnai
影响因子:
2.3
作者:
Ivan Šalitroš;O. Fuhr;R. Kruk;J. Pavlik;L. Pogány;B. Schäfer;Miroslav Tatarko;R. Boča;W. Linert;M. Ruben
通讯作者:
M. Ruben