Two new polyoxovanadate-supported transition metal complexes: [Zn(en) 2][Zn(en)2(H2O)2][{Zn(en)(enMe)} As6V15O42(H2O)]·4H 2O and [Zn2(enMe)2(en)3][{Zn(enMe) 2}As6V15O42(H2O)] ·4H2O

Abstract

Two novel As-V-O cluster supported transition metal complexes, [Zn(en) 2][Zn(en)2(H2O)2][{Zn(en)(enMe)} As6V15O42 (H2O)·4H 2O (1) and [Zn2(enMe)2(en)3] [{Zn(enMe)2}As6V15O42 (H 2O)]·4H2O (2), have been hydrothermally synthesized. The single X-ray diffraction studies reveal that both compounds consist of discrete noncentral polyoxoanions [{Zn(en)(enMe)}As6V 15O42 (H2O)]4- or [{Zn(enMe) 2}As6V15O42(H2O)] 4- cocrystallized with respective zinc coordination complexes. Interestingly, compounds 1 and 2 exhibit the first two polyoxovanadates containing As8V15O42(H2O)] 6- cluster decorated by only one transition metal complex. Crystal data: 1, monoclinic, P21/n, a = 14.9037(4) Å, b = 18.1243(5) Å, c = 27.6103(7) Å, β = 105.376(6)°, Z = 4; 2 monoclinic, P21/n, a = 14.9786(7) Å, b = 33.0534(16) Å, c = 14.9811(5) Å, Z = 4. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.