Retraction pubs.acs.org/JACS
Retraction of “Preorganized Chromophores Facilitate Triplet Energy Migration, Annihilation and Upconverted Singlet Energy Collection” Prasenjit Mahato, Nobuhiro Yanai,* Melinda Sindoro, Steve Granick, and Nobuo Kimizuka* J. Am. Chem. Soc. 2016, 138, 6541−6549 DOI: 10.1021/jacs.6b01652
T
he authors retract this article because of scientific misconduct on the part of the first author, who was affiliated with Kyushu University at the time of the article’s publication. After the coauthors identified discrepancies in the raw data, the first author acknowledged his misconduct. An investigative panel at Kyushu University verified the scientific misconduct by the first author and also concluded that no other coauthors were engaged in the misconduct. The authors are unable to reproduce the fluorescence quantum yields of metal−organic framework (MOF) nanocrystals in the absence and presence of energy collector molecules (page 6546 left column, page 6547 left column). The solid-state upconversion emission spectra have not been confirmed at low excitation intensity as reported in Figure 3 and Figure 5. Also, the high stability under continuous laser excitation is not confirmed (Figure 3 and Figure 5). The authors deeply regret these circumstances and apologize to the scientific community for not having detected this research misconduct before publication. The original article was published on May 10, 2016, and retracted on June 8, 2017.
© XXXX American Chemical Society
A
DOI: 10.1021/jacs.7b04407 J. Am. Chem. Soc. XXXX, XXX, XXX−XXX
