Z. Naturforsch. 2013,
68b, 351 – 356
doi:10.5560/ZNB.2013-3037
Synthesis and Crystal Structure of a Mn(II) Metal-Organic Framework Based on a Polydentate Schiff Base Ligand
Jun Li
Wang,
Hai Yan
Li,
Chen Hong
Liu, and
Yan
Bai
Received February 7, 2013 / published online April 19, 2013
A Mn(II) metal-organic framework {[MnL2(NCS)2]·(H2O)4}n (1) with L = bis(pyridin-3-yl-methylene)biphenyl-2,2′-dicarbohydrazide has been synthesized and characterized by IR spectroscopy, elemental analysis, UV spectroscopy, thermogravimetric (TG) analysis, powder X-ray diffraction, and single-crystal X-ray structure determination. The Mn(II) atom has a distorted octahedral coordination environment with an N6 donor set from four ligands and two NCS− anions. The structure of 1 exhibits a layer framework containing tetranuclear metallacyclic ring units [MnII4L4] in the chair conformation. In addition, there are multiform
O–H···O, C–H···O, N–H···O, and C-H···N hydrogen bonds and C–H··· π interactions in a three-dimensional supramolecular network.
Key words: Manganese(II), Metal-Organic Framework, Schiff Base, Crystal Structure