Four transition-metal-bridging risedronate-based polyoxomolybdates: Syntheses, structures, characterizations and magnetic properties

作者：Sun, Xiaopeng; Ban, Ran; Ma, Pengtao; Wang, Jiawei; Zhang, Dongdi; Niu, Jingyang^*; Wang, Jingping^*

来源：Synthetic Metals, 2017, 223: 19-25.

DOI：10.1016/j.synthmet.2016.11.035

• Polyoxomolybdate
• Risedronate
• Transition metal
• Chemical synthesis
• Crystal structure
• Magnetic property

Four structurally novel transition-metal (TM)-bridging risedronate (Ris)-based polyoxomolybdates (Ris-based PODs), Cs4Na2[{MO(H2O)(2))(Mo2O5L)](2).16H(2)O [M=Ni (1), Co (2)], Cs2Na2H[(CrO2)[(Mo2O5)(HL)}(2)].17H(2)O (3) Cs11Na4H7[MnO2[HL(Mo2O5)MnO2(H2O)(Mo2O4)L}(2)](2).26H(2)O (4) [L={O3PC(O)(CH2-3-C5NH4)PO3}, HL=(O3PC(O)(CH2-3-C5NH5)PO3}], have been presented through conventional aqueous solution and characterized by single crystal X-ray diffraction and PXRD, SEM images and EDX analyses, IR and UV spectra, elemental analyses and X-ray photoelectron spectroscopy. Compared to the reported edge sharing {(Mo2O4)-O-v), the face-sharing building block {(Mo2O5)-O-vl) is employed in compounds 1-4, which are uncommon in Ris-based PODs. Furthermore, preliminary variable-temperature magnetic susceptibility measurements indicate that 1 and 4 display weak ferromagnetic behaviors and antiferromagnetic interactions, respectively.

• 出版日期2017-1
• 单位河南大学