_SECTION_PARAMETERS_ |
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| activates the functional
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| This optional keyword expects a logical |
| This keyword behaves as a switch T
. Default value: F
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SCALE_C |
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| scales the correlation part of the functional
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| This optional keyword expects a real. Default value: 1.0000000000000000E+00
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FUNCTIONAL_TYPE |
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| FUNCTIONAL_TYPE VWN5
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| Which version of the VWN functional should be used
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| This optional keyword expects a keyword. Default value: VWN5
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| valid keywords: VWN5 : This is the recommended (correct) version of the VWN functional
VWN3 : This version is the default in Gaussian, but not recommended.Notice that it is also employed in Gaussian's default version of B3LYP
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