化学元素数据获取的单位转换

Question

{"H", #, UnitConvert[Quantity[#, "Hartrees"], "Electronvolts"]} &[
 getIonizationPotential["Hydrogen"]]
 
 
 
 
 结果
 {"H", UnitConvert[
  1312.0/(QuantityUnits`Private`ToQuantity[
      QuantityUnits`Private`UnknownQuantity[1, 
       "AvogadroConstant"]] QuantityUnits`Private`ToQuantity[
      QuantityUnits`Private`UnknownQuantity[1, "Hartrees"]])], 
 UnitConvert[
  QuantityUnits`Private`ToQuantity[
   QuantityUnits`Private`UnknownQuantity[
    UnitConvert[
     1312.0/(QuantityUnits`Private`ToQuantity[
         QuantityUnits`Private`UnknownQuantity[1, 
          "AvogadroConstant"]] QuantityUnits`Private`ToQuantity[
         QuantityUnits`Private`UnknownQuantity[1, "Hartrees"]])], 
    "Hartrees"]], "Electronvolts"]}
    
    
    正确结果
    
    {H，0.049971，13.598eV}
    
getIonizationPotential[Target] returns the ionization potential of an atomic target, e.g. "Hydrogen", in atomic units.

getIonizationPotential[Target,q] returns the ionization potential of the q-th ion of the specified Target, in atomic units.

getIonizationPotential[{Target,q}] returns the ionization potential of the q-th ion of the specified Target, in atomic units.

我在计算的时候，为什么有时候可以得到正确结果，有时候就是那一大堆代码

Comments

不知道是什么原因，UnitConvert的示列中的结果也无法重复。