iron(II) tetrafluoroborate hexahydrate   、                                                                                      
2,6-di(pyrazol-1-yl)-4-(4,4,5,5-tetramethyl-1-oxido-3-ylooxy-4,5-dihydro-3H-imidazol-2'-yl)pyridine   、                                                                                      
丙酮                                                                                                                                                                                              以
                                                                                         
丙酮                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 [Fe(II)(2,6-di(pyrazol-1-yl)-4-(4,4,5,5-tetramethyl-1-oxido-3-ylooxy-4,5-dihydro-3H-imidazol-2'-yl)pyridine)2](BF4)2*acetone