[Rdkit-discuss] MMFFMolProperties objects

2020-10-15 Thread Ling Chan
Dear colleagues, I am trying to energy minimize a molecule without the electric term. I figure that I can use the SetMMFFEleTerm function, as described in http://rdkit.org/docs/source/rdkit.ForceField.rdForceField.html#rdkit.ForceField.rdForceField.MMFFMolProperties.SetMMFFEleTerm which

Re: [Rdkit-discuss] difference between _CalcMolWt vs CalcExactMW?

2020-10-15 Thread dmaziuk via Rdkit-discuss
On 10/15/2020 3:45 PM, Ivan Tubert-Brohman wrote: Hi Steven, MolWt uses naturally occurring average atomic weights, the ones you find in a typical periodic table. For example, Cl = 35.453. ExactMolWt uses the weight of a specific isotope (the most naturally abundant isotope unless the

Re: [Rdkit-discuss] difference between _CalcMolWt vs CalcExactMW?

2020-10-15 Thread Ivan Tubert-Brohman
Hi Steven, MolWt uses naturally occurring average atomic weights, the ones you find in a typical periodic table. For example, Cl = 35.453. ExactMolWt uses the weight of a specific isotope (the most naturally abundant isotope unless the structure specifies a different one for an atom). These are

[Rdkit-discuss] difference between _CalcMolWt vs CalcExactMW?

2020-10-15 Thread Steven Pak
Hello, I have a couple of questions. 1. I was wondering what are the detailed calculation methods on both _CalcMolWt (python: from the rdMolDescriptors module) vs CalcExactMW (CPP)? Could you help me direct to literature on how these are calculated? 2. _CalcMolWt can be found in the QED.py code,