Retraction Note: Microchimica Acta (2021) 188:271

https://doi.org/10.1007/s00604-021-04910-1

The Editors-in-Chief have retracted this article. The article appears to significantly overlap with a previously published article [1]. Specifically i) the Figures and the N-atom location in Carbon superstructures in Scheme 1 appears to be identical to those in Fig 1. in [1] and ii) some of the content in the Supplementary Information (text, equations, Figure S1) mirrors the content in [1] with minimal changes in wording and text structuring. Bhuvanenthiran Mutharani, Palraj Ranganathan, and Hsieh-Chih Tsai disagree with this retraction. Juin-Yih Lai did not respond to correspondence from the editor about this retraction.