Journal
CANADIAN JOURNAL OF CHEMISTRY
Volume 95, Issue 5, Pages 547-552Publisher
CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
DOI: 10.1139/cjc-2016-0607
Keywords
six-coordinate manganese(IV) complexes; d(3) electron configuration; luminescence spectra; spin-flip luminescence; LMCT luminescence
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Funding
- Natural Sciences and Engineering Research Council (NSERC, Canada)
- U.S. National Science Foundation (NSF) [CHE-1056470, CHE-1565661]
- US Department of Energy - Basic Energy Sciences [DE-FG02-08ER15996]
- NSF [MCB 1515981]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1056470] Funding Source: National Science Foundation
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The molecular bis-(tris(carbene)borate) manganese(IV) complex [{PhB(MeIm)(3)}(2)Mn](OTf)(2) shows E-2(g) -> (4)A(2g) luminescence at 828 nm in the solid state at 85 K; this wavelength is longer by approximately 100 nm than the wavelengths typically observed for manganese(IV) and chromium(III) doped solids and for molecular chromium(III) complexes. Weak luminescence is also observed from a LMCT excited state with an absorption maximum at 500 nm. This represents the first molecular manganese(IV) compound for which luminescence has been reported.
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