Synthesis and Characterization of Cr(III) Complexes with 3‐Hydroxy‐4‐Pyrones and 1,2‐Dimethyl‐3‐Hydroxy‐4‐Pyridinone (DMHP): X‐Ray Crystal Structures of Cr(DMHP)<sub>3</sub> · 12H<sub>2</sub>O and Cr(ma)<sub>3</sub>
                                
                                    
                                        作者:Wen‐Yuan Hsieh、Shuang Liu                                    
                                    
                                        DOI:10.1081/sim-200047549
                                    
                                    
                                        日期:2005.1.1
                                    
                                    electrochemical methods, and in the cases of Cr(DMHP)3 · 12H2O and Cr(ma)3 by X‐ray crystallography. The X‐ray crystal structure of Cr(DMHP)3 · 12H2O shows that the Cr is coordinated by six oxygen donor atoms from three DMHP ligands in distorted octahedral coordination geometry, and is isostructural to the exoclathrate metal complexes M(DMHP)3 · 12H2O (M = Al, Ga, Fe, In and Mn). Although the Cr(III) in Cr(ma)3