unique structural groups是官能团种类还是官能团个数? properties from structure properties for defined components, either library or non-library, may be estimated if the user supplies a component structure and invokes the fill option in the component data category of input. this procedure primarily uses the methods of joback. it is good for components having molecular weights below 400 and components with less than 20 unique structural groups . more accurate results are obtained for components containing just one type of functional group. for example, amine properties would be more accurate than those predicted for an ethanol amine, which would contain functional groups for both an alcohol and an alcohol amine. this feature is available in pro/ii software for all versions subsequent to v3.3. 这里的unique structural groups是官能团种类还是官能团个数？ o(∩_∩)o谢谢 @55656937 查看更多
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