Abstract
A new 1D coordination polymer [Me4N]3{[Mn(L)][Nb6Cl12(CN)6]}·3MeCN·H2O (1) (L = acacen 2− = N,N′-bis(acetylacetone)-1,2-ethylenediimine) was synthesized from reaction between [Me4N]4[Nb6Cl12(CN)6] and [Mn(L)]Cl in acetonitrile. The crystal structure of 1 was determined from single-crystal X-ray diffraction analysis. Compound 1 crystallizes in the tetragonal system, space group I41/a (No. 88), a = 30.585(4), c = 27.348(6) A, V = 25582(7) A3, Z = 16. Its 1D framework consists of chains formed of metal clusters and Mn(L) complexes linked to each other by Nb–C≡N–Mn–N≡C–Nb linkages. The chains extend along the a and b crystallographic axes and are related to each other by 41 screw axis. The chains are held together by [Me4N]+ cations and solvent molecules located in channels running between the chains. 1 and the previously reported 1D coordination polymer [Me4N]3{[Mn(5-MeO-salen)][Nb6Cl12(CN)6]} (3) differ from each other in terms of their synthesis and their structural characteristics. Octahedral metal clusters and Mn(III) complexes with tetradentate schiff base ligands self assemble in solution to form the 1D cluster-based coordination polymer shown below.
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