A Near-Infrared Luminescent Cr(III) N -Heterocyclic Carbene Complex.

التفاصيل البيبلوغرافية
العنوان:	A Near-Infrared Luminescent Cr(III) N -Heterocyclic Carbene Complex.
المؤلفون:	Jones RW; Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, U.K., Cowin RA; Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K., Ivalo II; Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K., Chekulaev D; Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K., Roseveare TM; Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K., Rice CR; Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, U.K., Weinstein JA; Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K., Elliott PIP; Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, U.K., Scattergood PA; Department of Chemistry, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, U.K.
المصدر:	Inorganic chemistry [Inorg Chem] 2024 May 13; Vol. 63 (19), pp. 8526-8530. Date of Electronic Publication: 2024 May 02.
نوع المنشور:	Journal Article
اللغة:	English
بيانات الدورية:	Publisher: American Chemical Society Country of Publication: United States NLM ID: 0366543 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-510X (Electronic) Linking ISSN: 00201669 NLM ISO Abbreviation: Inorg Chem Subsets: PubMed not MEDLINE; MEDLINE
أسماء مطبوعة:	Original Publication: [Easton, Pa.] American Chemical Society.
مستخلص:	Photoluminescent coordination complexes of Cr(III) are of interest as near-infrared spin-flip emitters. Here, we explore the preparation, electrochemistry, and photophysical properties of the first two examples of homoleptic N -heterocyclic carbene complexes of Cr(III), featuring 2,6- bis (imidazolyl)pyridine (ImPyIm) and 2-imidazolylpyridine (ImPy) ligands. The complex [Cr(ImPy) 3 ] ³⁺ displays luminescence at 803 nm on the microsecond time scale (13.7 μs) from a spin-flip doublet excited state, which transient absorption spectroscopy reveals to be populated within several picoseconds following photoexcitation. Conversely, [Cr(ImPyIm) 2 ] ³⁺ is nonemissive and has a ca. 500 ps excited-state lifetime.
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تواريخ الأحداث:	Date Created: 20240502 Latest Revision: 20240517
رمز التحديث:	20240517
مُعرف محوري في PubMed:	PMC11094792
DOI:	10.1021/acs.inorgchem.4c01270
PMID:	38696219
قاعدة البيانات:	MEDLINE

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الوصف
تدمد:	1520-510X
DOI:	10.1021/acs.inorgchem.4c01270