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Abstract Whether tetra‐tert‐butyl‐s‐indacene is a symmetricD2hstructure or a bond‐alternatingC2hstructure remains a standing puzzle. Close agreement between experimental and computed proton chemical shifts based on minima structures optimized at the M06‐2X, ωB97X‐D, and M11 levels confirm a bond‐localizedC2hsymmetry, which is consistent with the expected strong antiaromaticity of TtB‐s‐indacene.
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Additive controlled packing polymorphism in a series of halogen-substituted dithieno[3,2- a :2′,3′- c ]phenazine derivatives
For a series of substituted dithieno[3,2-a:2′,3′-c]phenazine derivatives X-ray diffraction studies have been carried out.
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- Award ID(s):
- 2122108
- PAR ID:
- 10502354
- Publisher / Repository:
- Royal Society of Chemistry
- Date Published:
- Journal Name:
- CrystEngComm
- Volume:
- 25
- Issue:
- 28
- ISSN:
- 1466-8033
- Page Range / eLocation ID:
- 4076 to 4088
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1039/D3CE00387F
