5 years ago

N-Methyl-4-pyridinium Tetrazolate Zwitterion-Based Photochromic Materials

N-Methyl-4-pyridinium Tetrazolate Zwitterion-Based Photochromic Materials
Pei-Xin Li, Guo-Cong Guo, Xiang-Yi Chen, Ming-Sheng Wang, Li-Zhen Cai, Ning-Ning Zhang
N,N′-Disubstituted bipyridinium (viologen) and N-monosubstituted bipyridinium compounds are well known for their electron-transfer (ET) photochromic behavior. Their modification has exclusively focused on the N-substituents to date. For the first time, we have studied the photochromic behavior when one pyridyl ring of the bipyridinium is substituted with a multifunctional azole group, and have found that two new coordination compounds based on N-methyl-4-pyridinium tetrazolate (mptz) zwitterion, [Zn(mptz)2Br2] (1) and [Cd3(mptz)2Cl6]n⋅4n H2O (2), exhibit typical ET photochromic behavior owing to photoinduced ET from halogen anion to the mptz ligand. This work demonstrates a new simple, neutral photoactive molecule with electron-accepting ability, which may act as a photoactive component for materials with potential photoswitching and photocatalysis applications. Shifting color: A new, unprecedented family of photochromic materials based on N-methyl-4-pyridinium tetrazolate (mptz) zwitterion was synthesized. The compounds exhibit typical electron transfer (ET) photochromic behavior owing to photoinduced electron transfer from the halogen anion to the mptz ligand.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201700677

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.