5—Br—PADAT 是测定钴很好的试剂,灵敏度高,选择性好.该晶体属单斜晶系,空间群为C2/c,晶胞参数a=18.993(6)(?),b=5.728(3)(?),c=24.207(7)(?);β=108.89(4)°,每个晶胞有8个分子.在PW—1100四圆衍射仪上收集了2184个独立的衍射点的强度数据.用Patterson 法和重原子法测定晶体结构,并以全矩阵最小二乘法修正结构参数,R=0.0713.所有的氢原子坐标位置从差值电子密度图上得到. 5-Br-PADAT is a good reagent for the determination of cobalt with high sensitivity and good selectivity. The crystal belongs to monoclinic system with space group C2 / c, cell parameters a = 18.993 (6) (?), B = 5.728 (3) (?), C = 24.207 (7) (?); Β = 108.89 (4) °, with 8 molecules per unit cell. On the PW-1100 four-circle diffractometer, 2184 independent The intensity data of the diffraction spots were determined using the Patterson method and the heavy atom method, and the structure parameters were corrected by the full matrix least squares method, R = 0.0713. All the hydrogen atom coordinate positions were obtained from the difference electron density map.