jasondbiggs

(WIP) Feature/topological steric effect index

2

#### Reference Issue implements #4229 #### What does this implement/fix? Explain your changes. Topological steric effect index (TSEI) Cao and Liu, J Chem Inf Comput Sci 44(2), 678-687, 2004. [dx.doi.org/10.1021/ci034266b](https://pubmed.ncbi.nlm.nih.gov/15032550/)...

sulfate sulfur marked as _ChiralityPossible

2

**Describe the bug** The sulfur in sulfuric acid or a sulfate group is marked with the "_ChiralityPossible" flag, even though it has identical substituents. **To Reproduce** ``` rdmolops.SetUseLegacyStereoPerception(False) # unless...