名称:
                                Synthesis and characterization of trimetallic complexes [η5-RC5H4(CO)3E]2Hg (E = Cr, Mo, W ; R = Me, Et, n-Bu). Crystal structure of [η5-EtC5H4(CO)3Cr]2Hg
                             
                            
                                摘要:
                                The synthesis of six linear trimetallic compounds of the type [eta5-RC5H4 (CO)3E]2Hg (E = Cr, Mo, W; R = Me, Et, n-Bu), from phenylmercuric chloride and corresponding transition metal lithium salts [eta5-RC5H4(CO)3E]Li is described. The new compounds were characterized by elemental analysis, MS, IR and H-1 NMR spectroscopy and the structure of [eta5-EtC5H4(CO)3Cr]2Hg as determined by X-ray diffraction. The Cr-Hg-Cr skeleton of the molecule is diagonal with some departure from linearity and the coordination geometry around each chromium atom approximates to a square-based pyramid with one substituted cyclopentadienyl ring occupying the apical position.