Abstract
A novel 2-D organic–inorganic hybrid copper-yttrium heterometallic monovacant Keggin phosphotungstate derivative [Cu(dap)2]5.5[Y(α-PW11O39)2]·4H2O (1) (dap = 1,2-diaminopropane) has been hydrothermally synthesized by reaction of Na9[A-α-PW9O34]·7H2O, CuCl2·2H2O, YCl3 and dap and structurally characterized by elemental analysis, IR spectrum, UV spectrum, powder X-ray diffraction (PXRD), and X-ray single-crystal diffraction. 1 illustrates an interesting 2-D copper-yttrium heterometallic sheet architecture with a 5-connected topology built by 1:2-type [Y(α-PW11O39)2]11− subunits and [Cu(dap)2]2+ bridges. To our knowledge, 1 represents a rare 2-D organic–inorganic hybrid Keggin phosphotungstate-based transition metal and rare-earth heterometallic derivative. The photocatalytic measurements show that 1 can inhibit the photodegradation of rhodamine-B.
Acknowledgments
This work was supported by the Natural Science Foundation of China (21071042, 21071043), China Postdoctoral Science Foundation funded project (20100470996), the Natural Science Foundation of Henan Province (No. 092300410119, 102300410093), the Postdoctoral Science Foundation of Henan University (No. BH2010003), and the Foundation of Education Department of Henan Province (No. 2009A150003, 2010B150006).