A new hybrid molecular metal assembling a BEDT-TTF conducting network and the magnetic chain anion [Mn2Cl5(H2O)(5)](-)(infinity): alpha-(BEDT-TTF)(2)[Mn2Cl5(H2O)(5)]

作者：Zorina Leokadiya V^*; Prokhorova Tat'yana G; Khasanov Salavat S; Simonov Sergey V; Zverev Vladimir N; Korobenko Alexey V; Putrya Anna V; Mironov Vladimir S; Canadell Enric; Shibaeva Rimma P; Yagubskii Eduard B

来源：CrystEngComm, 2009, 11(10): 2102-2109.

DOI：10.1039/b905840k

The synthesis, X-ray crystal and electronic band structures as well as magnetotransport and magnetic properties of the alpha-(BEDT-TTF)(2)[Mn2Cl5(H2O)(5)] radical cation salt with a new type of magnetic polymeric complex anion, [Mn2Cl5(H2O)(5)](-) (infinity), are reported. The crystal structure is characterized by radical cation layers alternating with layers of the polymeric 1-D chain anions constructed from MnCl3(H2O)(3) and MnCl4(H2O)(2) octahedra connected to each other via the apical Cl atoms. The calculated electronic band structure suggests that the salt should be a stable 2-D metal and the conductivity measurements show that it exhibits metallic behavior down to 0.4 K. Shubnikov-de Haas oscillations, observed at B > 10 T, are characterized by two fundamental frequencies, corresponding to cross-sections of the Fermi surface, in agreement with the electronic band structure calculations. Magnetic measurements reveal antiferromagnetic correlations in the anion network.

• 出版日期2009