TY - DATA T1 - Proton Control of the Lanthanoid Single-Ion Magnet Behavior of a Double-Decker Complex with an Indolenine-Substituted Annulene Ligand PY - 2017/05/24 AU - Zhifu Liang AU - Marko Damjanović AU - Mritunjoy Kamila AU - Goulven Cosquer AU - Brian K. Breedlove AU - Markus Enders AU - Masahiro Yamashita UR - https://acs.figshare.com/articles/journal_contribution/Proton_Control_of_the_Lanthanoid_Single-Ion_Magnet_Behavior_of_a_Double-Decker_Complex_with_an_Indolenine-Substituted_Annulene_Ligand/5038763 DO - 10.1021/acs.inorgchem.7b00626.s001 L4 - https://ndownloader.figshare.com/files/8516897 KW - Proton Control KW - relaxation time KW - Indolenine-Substituted Annulene Ligand KW - proton KW - Lanthanoid Single-Ion Magnet Behavior KW - indolenine nitrogen atoms KW - acid KW - counterion KW - hysteresi KW - Deprotonation KW - complex KW - NMR spectroscopy KW - DFT calculations KW - opening KW - Double-Decker Complex KW - annulene ligands functionalized KW - indolenine groups KW - correlation KW - protonation N2 - Two double-decker complexes with annulene ligands functionalized with indolenine groups were synthesized and characterized. The position of the proton acting as a counterion on one of the four indolenine nitrogen atoms was determined by using DFT calculations. Deprotonation and protonation of the complex induced by adding a base and an acid, respectively, were monitored by using NMR spectroscopy. Moreover, a correlation among the degree of protonation of the complex, the opening of the hysteresis, and the slow relaxation time is discussed. ER -