I have a molecule with radicals for which I'm trying to correct the bond
orders.
The mol block I have currently is shown below.

Ultimately it thinks the first carbon (which is supposed to have 2 explicit
hydrogens, 1 C-C bond, and 1 radical electron) has a valence of 5. So when
I try to call `SanitizeMol`, it errors out with too high a valence.

for the problematic atom 'a',

>>> a.GetNumImplicitHs()

RuntimeError: Pre-condition Violation
        getNumImplicitHs() called without preceding call to 
calcImplicitValence()


>>> a.GetTotalValence()

3 (odd, since this is what I want)


>>> a.UpdatePropertyCache()

ValueError: Sanitization error: Explicit valence for atom # 0 C, 5, is
greater than permitted


And when I print the mol block, it clearly thinks that first carbon as
a valence of 5.

Any suggestions how to fix this?


>>> print(Chem.MolToMolBlock(mol))

9572
     RDKit          3D

 15 14  0  0  0  0  0  0  0  0999 V2000
    2.0411   -0.0455   -0.1061 C   0  0  0  0  0  *5*  0  0  0  0  0  0
    0.8127   -0.5644    0.2519 N   0  0  0  0  0  0  0  0  0  0  0  0
   -0.3953    0.0049   -0.3294 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.6511    1.4326    0.1487 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.5741   -0.9060   -0.0263 C   0  0  0  0  0  0  0  0  0  0  0  0
    2.1578    0.2387   -1.1430 H   0  0  0  0  0  0  0  0  0  0  0  0
    2.9032   -0.4021    0.4366 H   0  0  0  0  0  0  0  0  0  0  0  0
    0.7154   -0.7889    1.2330 H   0  0  0  0  0  0  0  0  0  0  0  0
   -0.2282    0.0219   -1.4109 H   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8463    1.4378    1.2242 H   0  0  0  0  0  0  0  0  0  0  0  0
    0.2197    2.0597   -0.0426 H   0  0  0  0  0  0  0  0  0  0  0  0
   -1.5161    1.8651   -0.3565 H   0  0  0  0  0  0  0  0  0  0  0  0
   -1.7375   -0.9640    1.0535 H   0  0  0  0  0  0  0  0  0  0  0  0
   -1.3932   -1.9131   -0.4005 H   0  0  0  0  0  0  0  0  0  0  0  0
   -2.4874   -0.5194   -0.4787 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0
  1  7  1  0
  2  8  1  0
  3  5  1  0
  3  4  1  0
  3  2  1  0
  4 10  1  0
  5 13  1  0
  6  1  1  0
  9  3  1  0
 11  4  1  0
 12  4  1  0
 14  5  1  0
 15  5  1  0
M  RAD  1   1   2
M  END


Thanks!

-- Peter St. John
_______________________________________________
Rdkit-discuss mailing list
Rdkit-discuss@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/rdkit-discuss

Reply via email to