TY - JOUR
T1 - Polyoxoanion Coordination Chemistry
T2 - Synthesis and Characterization of the Heterometallic, Hexanuclear Clusters [{Zn(bipy)2}2V4O 12]·[{Zn(phen)2}2V4O 12]·H2O, and [{Ni(bipy)2}2Mo4O14]
AU - Zhang, Yiping
AU - Zapf, Pamela J.
AU - Meyer, Linda M.
AU - Haushalter, Robert C.
AU - Zubieta, Jon
PY - 1997
Y1 - 1997
N2 - The hydrothermal reactions of vanadium oxide and molybdenum oxide starting materials with divalent first-row transition metal cations in the presence of nitrogen donor chelating ligands yield the heterometallic hexanuclear clusters [{Zn(bipy)2}2V4O12] (2), [{Zn(phen)2}2V4O12]·H 2O (3·H2O), and [{Ni(bipy)2}2Mo4O14] (4). A similar reaction in the presence of excess 2,2′-bipyridine yields [Zn(bipy)3]2[V4O12]·11H 2O (1·11H2O), a species with an isolated {V4O12}4- cluster. The structure of 2 consists of a {V4O12}4- ring covalently attached to each of two {Zn(bipy)2}2+ moieties through the terminal oxo groups of alternate vanadium sites. In contrast, the structure of 3 exhibits a {V4O12}4- ring linked through oxo groups of adjacent vanadium sites to two {Zn(phen)2}2+ moieties. The structure of 4 is constructed from two {Mo2O7}2- units linked through two {Ni(bipy)2}2+ groups to form a cyclic 12-membered {Mo4Ni2O6} core. Crystal data: [Zn(bipy)3]2[V4O12]·11H 2O (1·11H2O), a = 21.910(4) Å, b = 14.044(2) Å, c = 23.815(4) Å, β= 106.15(1)°, monoclinic, C2/c, Z = 4; [{Zn(bipy)2}2V4O12] (2), a = 12.017(2) Å, c = 15.120(2) Å, tetragonal P42/n, Z = 2, [{Zn(o-phen)2}2V4O12]·H 2O (3·H2O), a = 18.182(2) Å, b = 11.3668(9) Å, c = 23.455(2) Å, β= 97.815(7)°, monoclinic P21/c, Z = 4; [{Ni(bipy)2{2Mo4O14] (4), a = 12.323(2) Å, c = 14.897(4) Å, tetragonal P42212, Z = 2.
AB - The hydrothermal reactions of vanadium oxide and molybdenum oxide starting materials with divalent first-row transition metal cations in the presence of nitrogen donor chelating ligands yield the heterometallic hexanuclear clusters [{Zn(bipy)2}2V4O12] (2), [{Zn(phen)2}2V4O12]·H 2O (3·H2O), and [{Ni(bipy)2}2Mo4O14] (4). A similar reaction in the presence of excess 2,2′-bipyridine yields [Zn(bipy)3]2[V4O12]·11H 2O (1·11H2O), a species with an isolated {V4O12}4- cluster. The structure of 2 consists of a {V4O12}4- ring covalently attached to each of two {Zn(bipy)2}2+ moieties through the terminal oxo groups of alternate vanadium sites. In contrast, the structure of 3 exhibits a {V4O12}4- ring linked through oxo groups of adjacent vanadium sites to two {Zn(phen)2}2+ moieties. The structure of 4 is constructed from two {Mo2O7}2- units linked through two {Ni(bipy)2}2+ groups to form a cyclic 12-membered {Mo4Ni2O6} core. Crystal data: [Zn(bipy)3]2[V4O12]·11H 2O (1·11H2O), a = 21.910(4) Å, b = 14.044(2) Å, c = 23.815(4) Å, β= 106.15(1)°, monoclinic, C2/c, Z = 4; [{Zn(bipy)2}2V4O12] (2), a = 12.017(2) Å, c = 15.120(2) Å, tetragonal P42/n, Z = 2, [{Zn(o-phen)2}2V4O12]·H 2O (3·H2O), a = 18.182(2) Å, b = 11.3668(9) Å, c = 23.455(2) Å, β= 97.815(7)°, monoclinic P21/c, Z = 4; [{Ni(bipy)2{2Mo4O14] (4), a = 12.323(2) Å, c = 14.897(4) Å, tetragonal P42212, Z = 2.
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U2 - 10.1021/ic961045x
DO - 10.1021/ic961045x
M3 - Article
AN - SCOPUS:0001211533
SN - 0020-1669
VL - 36
SP - 2159
EP - 2165
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 10
ER -