TY - JOUR
T1 - Two Organic-Inorganic Hybrids Assembled by Carboxylate-Bridging Lanthanide-Substituted Polyoxometalate Dimers with Copper-ethylendiamine Cations
AU - Zhao, Hai Yan
AU - Zhao, Jun Wei
AU - Yang, Bai Feng
AU - Wei, Qi
AU - Yang, Guo Yu
PY - 2014/3
Y1 - 2014/3
N2 - Two new organic-inorganic hybrid carboxylate-bridging copper-lanthanide heterometallic polyoxotungstates K2[Cu(en)2(H2O)]2{[Cu(en)2]3[Ce(GeW11O39)(H2O)2]2(C2O4)}·11H2O (1) and K2 [Cu(en)2(H2O)]2{[Cu(en)2(H2O)]2[Tb(PW11O39)(CH3COO)(H2O)]2}·15H2O (2) (en = 1,2-ethylenediamine) have been prepared under hydrothermal conditions and characterized by elemental analyses, IR spectra, powder X-ray diffraction (PXRD), thermogravimetric (TG) analyses and X-ray single-crystal diffraction. X-ray structural analyses reveal that 1 exhibits the 1D zigzag chain architecture formed by dimeric oxalate-bridging {[Cu(en)2]3[Ce(GeW11O39)(H2O)2]2(C2O4)}6- units and [Cu(en)2]2+ linkers whereas 2 displays a typical hybrid acetate-bridging dimeric structure [(α-PW11O39)Tb(H2O)(η2,μ-1,1)-CH3COO] 2 10- modified by [Cu(en)2(H2O)]2+ fragments. Notably, both contain 2:2-type carboxylate-bridging monolanthanide-substituted Keggin-type dimeric moieties and two types of organic ligands. 1 represents the rare 1D Cu-Ln heterometallic germanotungstate containing mixed ligands of en and oxalate whereas 2 represents the rare dimeric organic-inorganic hybrid Keggin-type phosphotungstate containing both Cu-Ln heterometals and mixed ligands of en and acetate. Graphical Abstract: Two new organic-inorganic hybrid copper-lanthanide heterometallic polyoxotungstates containing mixed organic ligands of en and carboxylate were successfully separated under hydrothermal conditions. 1 exhibits the 1D zigzag chain architecture formed by dimeric oxalate-bridging {[Cu(en)2]3[Ce(GeW11O39)(H2O)2]2(C2O4)}6- units by [Cu(en)2]2+ linkers, whereas 2 displays a typical hybrid acetate-bridging dimeric structure [(α-PW11O39)Tb(H2O)(η2,μ-1,1)-CH3COO] 2 10- modified by [Cu(en)2(H2O)]2+ fragments.[Figure not available: see fulltext.]
AB - Two new organic-inorganic hybrid carboxylate-bridging copper-lanthanide heterometallic polyoxotungstates K2[Cu(en)2(H2O)]2{[Cu(en)2]3[Ce(GeW11O39)(H2O)2]2(C2O4)}·11H2O (1) and K2 [Cu(en)2(H2O)]2{[Cu(en)2(H2O)]2[Tb(PW11O39)(CH3COO)(H2O)]2}·15H2O (2) (en = 1,2-ethylenediamine) have been prepared under hydrothermal conditions and characterized by elemental analyses, IR spectra, powder X-ray diffraction (PXRD), thermogravimetric (TG) analyses and X-ray single-crystal diffraction. X-ray structural analyses reveal that 1 exhibits the 1D zigzag chain architecture formed by dimeric oxalate-bridging {[Cu(en)2]3[Ce(GeW11O39)(H2O)2]2(C2O4)}6- units and [Cu(en)2]2+ linkers whereas 2 displays a typical hybrid acetate-bridging dimeric structure [(α-PW11O39)Tb(H2O)(η2,μ-1,1)-CH3COO] 2 10- modified by [Cu(en)2(H2O)]2+ fragments. Notably, both contain 2:2-type carboxylate-bridging monolanthanide-substituted Keggin-type dimeric moieties and two types of organic ligands. 1 represents the rare 1D Cu-Ln heterometallic germanotungstate containing mixed ligands of en and oxalate whereas 2 represents the rare dimeric organic-inorganic hybrid Keggin-type phosphotungstate containing both Cu-Ln heterometals and mixed ligands of en and acetate. Graphical Abstract: Two new organic-inorganic hybrid copper-lanthanide heterometallic polyoxotungstates containing mixed organic ligands of en and carboxylate were successfully separated under hydrothermal conditions. 1 exhibits the 1D zigzag chain architecture formed by dimeric oxalate-bridging {[Cu(en)2]3[Ce(GeW11O39)(H2O)2]2(C2O4)}6- units by [Cu(en)2]2+ linkers, whereas 2 displays a typical hybrid acetate-bridging dimeric structure [(α-PW11O39)Tb(H2O)(η2,μ-1,1)-CH3COO] 2 10- modified by [Cu(en)2(H2O)]2+ fragments.[Figure not available: see fulltext.]
KW - Carboxylate
KW - Copper-lanthanide heterometallic polyoxotungstate
KW - Hydrothermal synthesis
KW - Polyoxometalate
UR - http://www.scopus.com/inward/record.url?scp=84893945377&partnerID=8YFLogxK
U2 - 10.1007/s10876-013-0662-4
DO - 10.1007/s10876-013-0662-4
M3 - Article
AN - SCOPUS:84893945377
SN - 1040-7278
VL - 25
SP - 667
EP - 680
JO - Journal of Cluster Science
JF - Journal of Cluster Science
IS - 2
ER -