Doubt in chirality and pseudo chirality

So a carbon atom is chiral if it has 4 different group attached to it, and it is pseudo chiral if it has 3 different groups of atoms attached to it, where the 2 similar groups have different configuration (such as R/S or cis/trans). For the pseudo chiral carbon atom, it must have 2 and only 2 similar groups on it. (according to the IUPAC [Goldbook](https://goldbook.iupac.org/terms/view/P04921))
But what if the carbon atom has only 2 different group, but both with different configuration (like 2 similar groups of cis/trans and 2 similar groups of R/S) like this one :
[![enter image description here](https://i.stack.imgur.com/LNBUP.png)](https://i.stack.imgur.com/LNBUP.png)


This carbon atom can't be pseudo chiral as it does not have "only 2" similar groups on it. But it is not chiral because it does not have 4 different substituents.
This atom does not have a plane of symmetry or centre of symmetry or alternate axis of symmetry (correct me if I am wrong). So this molecule is chiral.
But is the carbon atom chiral or pseudo chiral or some other terminology is used in this case(the middle one, with 4 different groups).




I have simplified your structure to the dienes **1** and **2**. The "pseudo-asymmetric" carbon in diene **1** is stereogenic and achirotopic and labeled with a lower case descriptor. The [CIP rules](http://ursula.chem.yale.edu/%7Echem220/chem220js/STUDYAIDS/isomers/CIP%20rules%20NEW.html) dictate that *Z>E* and *R/S* and that *Z/E>R/S*. The priorities in **1** are *Z>E>R>S*. The stereochemistry at the "pseudo-asymmetric" carbon is "*s*". There is a plane of symmetry passing through *Z-s-E* and *R* mirrors *S*. The compound is optically inactive.  

The central carbon in diene **2** is non-stereogenic (no descriptor) and chirotopic. The *S,S*-enantiomer is optically active as is its enantiomer.  

For related posts on this topic on ChemSE go [here](https://chemistry.stackexchange.com/questions/172492/why-is-carbon-marked-as-1-acting-like-a-pseudo-chiral-centre/172515#172515) and [here](https://chemistry.stackexchange.com/questions/118433/number-of-stereoisomers-of-trisubstituted-cyclopentane/118437#118437).


![](https://i.stack.imgur.com/AK3hB.png)
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