TY - JOUR
T1 - Polyoxometalate clusters as building blocks for oxide materials
T2 - Synthesis and structure of a three-dimensional copper-pyrazinetetrazolate/Keggin assembly
AU - Darling, Kari
AU - Smith, Tiffany M.
AU - Vargas, Jose
AU - O'Connor, Charles J.
AU - Zubieta, Jon
N1 - Funding Information:
This work was supported by a grant from the National Science Foundation , CHE-0242153 .
PY - 2013/6
Y1 - 2013/6
N2 - The hydrothermal reaction of pyrazinetetrazole, copper(II) acetate monohydrate, molybdenum(VI) oxide and 1,2-ethylenediphosphonic acid yields the bimetallic oxide [{Cu4(pyztet)4(Hpyztet)(H 2O)2}{Mo12O36(PO4)}] ·2H2O (1·2H2O). The framework structure is constructed from {Mo12O36(PO4)}3 - clusters sandwiched between and linking {Cu4(pyztet) 5(Hpyztet)(H2O)2}n3n + networks. The Cu(II)-pyrazinetetrazolate substructure contains both '4 + 2' axially distorted and square planar Cu(II) sites. The six-coordinate sites are of two types: the first exhibits {CuN6} coordination to four tetrazolate and two pyrazine nitrogen donors, while the second enjoys {CuN 4O2} coordination defined by three tetrazolates and one pyrazine nitrogen donor, an aqua ligand and an oxo-group bridging to the Keggin cluster.
AB - The hydrothermal reaction of pyrazinetetrazole, copper(II) acetate monohydrate, molybdenum(VI) oxide and 1,2-ethylenediphosphonic acid yields the bimetallic oxide [{Cu4(pyztet)4(Hpyztet)(H 2O)2}{Mo12O36(PO4)}] ·2H2O (1·2H2O). The framework structure is constructed from {Mo12O36(PO4)}3 - clusters sandwiched between and linking {Cu4(pyztet) 5(Hpyztet)(H2O)2}n3n + networks. The Cu(II)-pyrazinetetrazolate substructure contains both '4 + 2' axially distorted and square planar Cu(II) sites. The six-coordinate sites are of two types: the first exhibits {CuN6} coordination to four tetrazolate and two pyrazine nitrogen donors, while the second enjoys {CuN 4O2} coordination defined by three tetrazolates and one pyrazine nitrogen donor, an aqua ligand and an oxo-group bridging to the Keggin cluster.
KW - Copper(II)-tetrazolate substructure
KW - Copper-molybdenum oxide
KW - Hydrothermal synthesis
KW - Polyoxometalate building blocks
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U2 - 10.1016/j.inoche.2013.03.001
DO - 10.1016/j.inoche.2013.03.001
M3 - Article
AN - SCOPUS:84875951569
SN - 1387-7003
VL - 32
SP - 1
EP - 4
JO - Inorganic Chemistry Communications
JF - Inorganic Chemistry Communications
ER -