title: Four di-Cu(II)-substituted sandwich-type germanomolybdates obtained under different reaction conditions: from zero-dimensional to two-dimensional structure.
abstract: Four di-Cu(II)-substituted sandwich-type germanomolybdates, (H(2)en)(2)H(7){[Na(0.5)(H(2)O)(3.5)](2)[Cu(2)(β-Y-GeMo(9)O(33))(2)]}·6H(2)O (1), (H(2)en)(2)H{[Na(2.5)(H(2)O)(12)](2)[Cu(en)(2)][Cu(2)(β-Y-GeMo(9)O(33))(2)]}·8H(2)O (2), [Na(4)(H(2)O)(12)](2)H(4)[Cu(2)(β-Y-GeMo(9)O(33))(2)]}·11H(2)O (3) and [Cu(en)(2)](2)[Cu(en)(2)(H(2)O)](2){[Cu(en)(2)](2)[Cu(2)(β-Y-GeMo(9)O(33))(2)]}·8H(2)O (4) (en = ethylenediamine), have been prepared. It is interesting that 1-3 were obtained in the same aqueous solution reaction system but exhibited different structures: 1 displays a 0D structure, 2 shows an organic-inorganic 1D chain structure, while 3 displays a 2D network. 4 was synthesized under hydrothermal condition by the same reagents, which represents the first transition metal-sandwiched organic-inorganic 2D heteropolymolybdate.
authors.affiliation: Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, PR China.
authors.forename: Suzhi
authors.initials: S
authors.lastname: Li
authors.forename: Yuan yuan
authors.initials: Yy
authors.lastname: Guo
authors.forename: Dongdi
authors.initials: D
authors.lastname: Zhang
authors.forename: Pengtao
authors.initials: P
authors.lastname: Ma
authors.forename: Xiaoyang
authors.initials: X
authors.lastname: Qiu
authors.forename: Jingping
authors.initials: J
authors.lastname: Wang
authors.forename: Jingyang
authors.initials: J
authors.lastname: Niu
mesh_terms: D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D005857:Germanium / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D008982:Molybdenum / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D013057:Spectrum Analysis; D013818:Thermogravimetry
chemical_list: D009942:Organometallic Compounds; D005857:Germanium; C044659:molybdate; D003300:Copper; D008982:Molybdenum