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What is the configuration of the central C atom in the following molecule and how to determine it?

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marked as duplicate by Todd Minehardt, bon, Jan, Curt F., ron organic-chemistry Nov 26 '15 at 18:57

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  • $\begingroup$ What configuration? There is none. You have two identical substituents. $\endgroup$ – Ivan Neretin Nov 26 '15 at 15:04
  • $\begingroup$ But there is no mirror plane passing through the center of the molecule? $\endgroup$ – RBW Nov 26 '15 at 15:05
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    $\begingroup$ See this earlier answer $\endgroup$ – ron Nov 26 '15 at 15:08
  • $\begingroup$ No mirror plane, so what? Can you build another molecule that would have similar side arms (both R), but be different from this one in the central atom's stereo configuration alone? $\endgroup$ – Ivan Neretin Nov 26 '15 at 15:13
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    $\begingroup$ I see. It is chirotopic. $\endgroup$ – RBW Nov 26 '15 at 15:15