ERROR opening https://cactus.nci.nih.gov/chemical/structure/O.O.O.%5BI-%5D.%5BI-%5D.%5BI-%5D.%5BIr%2B3%5D/file?format=sdf&get3d=True  -- O.O.O.%5BI-%5D.%5BI-%5D.%5BI-%5D.%5BIr%2B3%5D could not be loaded.