Abstract
A 3D coordination polymer with 1D hexagonal channels of [KMn4(IDC)3(prz)· 3H2O]n (1) (H3IDC = imidazole-4,5-dicarboxylic acid, prz = piperazine) was hydrothermally synthesized and characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in monoclinic with four independent Mn(II) atoms. The IDC3 − anions alternately bridge the Mn(2) and Mn(4) cations to form a 1D infinite linear chain, which is connected by the Mn(1) and Mn(3) through IDC3 − ligands to generate a concertina sheet. The sheets are further interlinked by IDC3 − ligands to form 3D frameworks with 1D hexagonal channels (7.251 × 8.677 Å), which is occupied by water molecules and K+ ions. Magnetic susceptibility measurements of 1 exhibit antiferromagnetic interactions between the nearest Mn(II) atoms.
This work was supported by the National Science Fund for Distinguished Young Scholars of China (20625103), NSFC (20371051).
Notes
a R = Σ < eqid1 > |F o | −|F c < eqid2 > |/Σ |F o |, wR2 = [Σ [w(F o 2− F c 2)2]/Σ w(F o 2)2]1/2; [F o > 4α(F o )]
b Based on all data.