New Insights into the Ligand Nature of Carbene: Synthesis and Characterizations of Six-Coordinate Iron(II) Carbene Porphyrin Complexes
| العنوان: | New Insights into the Ligand Nature of Carbene: Synthesis and Characterizations of Six-Coordinate Iron(II) Carbene Porphyrin Complexes |
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| المؤلفون: | Haimang Wang, Charles E. Schulz, Xuehong Wei, Jianfeng Li |
| المصدر: | Inorganic Chemistry. 58:143-151 |
| بيانات النشر: | American Chemical Society (ACS), 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | biology, 010405 organic chemistry, Ligand, Imidazole ligand, 010402 general chemistry, biology.organism_classification, 01 natural sciences, Porphyrin, Diatomic molecule, 0104 chemical sciences, Inorganic Chemistry, chemistry.chemical_compound, Crystallography, chemistry, Mössbauer spectroscopy, Tetra, Mossbauer spectra, Physical and Theoretical Chemistry, Carbene |
| الوصف: | Several six-coordinate iron(II) carbene tetra(pentafluorophenyl)porphyrin (TFPP) complexes, [Fe(TFPP)(CPh2)(1-EtIm)] (1-EtIm = 1-ethylimidazole) and [Fe(TFPP)(CPh2)(1,2-Me2Im)] (1,2-Me2Im = 1,2-dimethylimidazole), are isolated and studied by UV–vis, single-crystal X-ray, and Mossbauer spectroscopies. The single-crystal structural studies revealed noteworthy features including strong and “hard” axial carbene bonds (Fe–C) but “flexible” trans ligand bonds (Fe–NIm). The Mossbauer spectra of [Fe(TFPP)(CPh2)(1-EtIm)] and [Fe(TFPP)(CPh2)(1,2-Me2Im)] are obtained on solid-state samples between 25 and 295 K, which give very large ΔEQ values (1.8–1.9 mm/s), suggesting a weak effect of the trans imidazole ligands. Comparisons with diatomic carbon-donor ligands (CO, CS, and CN–) demonstrate considerably stronger π bonding of the :CPh2 carbene. |
| تدمد: | 1520-510X 0020-1669 |
| DOI: | 10.1021/acs.inorgchem.8b02043 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1771fa310b7623ddca38a2399dac9dde https://doi.org/10.1021/acs.inorgchem.8b02043 |
| رقم الانضمام: | edsair.doi.dedup.....1771fa310b7623ddca38a2399dac9dde |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1520510X 00201669 |
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| DOI: | 10.1021/acs.inorgchem.8b02043 |