Porphene: A Regular Heterocyclic Analog of Graphene
Abstract
After years of effort, we learnt how to convert parent Zn porphyrin (2, M = Zn) into macroscopic (0.1 - 0.01 mm across) sheets of Zn or free-base porphene (1, M = Zn or 2H, Figure 1), a periodic fully conjugated porphyrin network (Zn ions tend to get lost from the positively doped sheet during synthesis). At this point, it was likely that the regular meso-meso coupling in the structure shown in Figure 1A is contaminated with defects due to occasional meso-beta coupling or is even less regular. It is considered likely that the sheets are double but could be separated into single and also made much larger. Initial measurements suggested that 1 is a semiconductor, doped with holes provided by the aqueous oxidant. The results have been submitted for patent application by the University of Colorado1 but the US patent office has since determined that the application contained too much material and requested that it be separated into several applications. This process is still underway. More recently, considerably updated results were also submitted for open publication and the manuscript is now in the peer review process in Nature Communications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 31, 2019
- Accession Number
- AD1226045
Entities
People
- Josef Michl
Organizations
- University of Colorado Boulder