An efficient synthetic method for organometallic radicals: structures and properties of gold(I)-(nitronyl nitroxide)-2-ide complexes

作者：Suzuki Shuichi^*; Kira Sayaka; Kozaki Masatoshi; Yamamura Masaki; Hasegawa Toru; Nabeshima Tatsuya; Okada Keiji^*

来源：Dalton Transactions, 2017, 46(8): 2653-2659.

DOI：10.1039/c6dt04685a

One-pot synthesis of (nitronyl nitroxide)-gold(I)-phosphine (NN-Au-P) complexes has been developed using chloro(tetrahydrothiophene) gold(I), phosphine ligands, nitronyl nitroxide radicals, and sodium hydroxide. The NN-Au-P complexes can be easily handled because they were quite stable under aerated conditions in both solution and crystalline states. They showed weak absorption bands with vibrational structures in the 450-650 nm region. The oxidation potentials assigned to the NN moieties of NN-Au-P complexes with aromatic phosphines were observed around -0.1 V vs. Fc/ Fc(+) (-0.11 V for NN-Au-1, -0.08 V for NN-Au-2, -0.13 V for NN-Au-5, and -0.07 V for NN-Au-6), somewhat lower than that of NN-Au-P complexes with aliphatic phosphines (-0.25 V for NN-Au-3 and -0.17 V for NN-Au-4).

• 出版日期2017