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			| 3-D structures vs descriptors [message #1459] | Tue, 04 January 2022 15:13  |  
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					|  Christophe Messages: 34
 Registered: January 2022
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	| Hello everyone, 
 I am a new user of DataWarrior and I really enjoy it, so many thanks for providing the scientist community with such an advanced tool.
 
 Question: Is generating conformers from 2D structures, or smiles, a prerequisite in the calculation of molecular descriptors such as skelspheres or flexophores or can we do without it? More precisely, If I want to run a similarity/Activity cliff analysis for example, do I need first to compute optimized 3D structures from my 2D .sdf file?
 
 Thanks a lot
 All the best
 C.
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