Luminescence behavior and light absorption of some fluoro complexes of tervalent chromium

Schlaefer, Hans L.; Gausmann, H.; Zander, Hans U.

doi:10.1021/ic50054a022

Cited by 61 publications

(12 citation statements)

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“…satisfactory overall fit of the bands is obtained with Dq = 1640 cm-1, B = 670 cm-1, and ß = 0.78. (c) K3CrF6.-Our spectrum for this compound closely resembles those earlier recorded for the CrF63ion by Ferguson,et al,30 by Jprgensen,7 and by Schlaffer,et al,31 There are certain features concerning the analysis of the spectrum and the derivation of the fitting parameters which require attention. In the first place the Racah parameters deduced by Schlaffer, et al., are almost certainly too low since they were obtained by consideration only of the diagonal matrix elements for the Oh d3 system and not by use of the complete Tanabe-Sugano matrices.…”

Section: Resultssupporting

confidence: 83%

Electronic spectra of the hexafluorometalate(III) complexes of the first transition series

Allen¹,

El-Sharkawy²,

Warren³

1971

Inorg. Chem.

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Section: Resultssupporting

confidence: 83%

Electronic spectra of the hexafluorometalate(III) complexes of the first transition series

Allen¹,

El-Sharkawy²,

Warren³

1971

Inorg. Chem.

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“…[150][151][152][153][154][155][156][157][158][159] Similar complexes have been prepared with other diamines including 1,2-and 1,3-diaminopropane and 1,2-diaminocyclohexane. 157,[160][161][162][163][164][165] Very detailed studies of their absorption and emission spectra, including the effects of temperature and pressure, have been carried out (see for example ref. 163 and 166-168).…”

Section: Groupmentioning

confidence: 99%

Medium and high oxidation state metal/non-metal fluoride and oxide–fluoride complexes with neutral donor ligands

2013

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While most high and medium oxidation state (O.S. ≥ 3) metal and non-metal fluorides and oxide fluorides are strong Lewis acids, exploration of their coordination chemistry with neutral ligands has been limited and mostly non-systematic. This is despite the very different properties conferred on the acceptor centre by the small electronegative fluoride ligands compared to the heavier halides. This article sets out these key differences, discusses possible synthetic routes, the key characterisation techniques, and appropriate bonding models. Current knowledge of the coordination chemistry of d, f and p-block fluorides and oxide fluorides with neutral ligands (with donor atoms drawn from Groups 15 and 16 and including N-heterocyclic carbenes) is then presented and discussed, and the differences in properties compared to complexes containing the heavier halides are illustrated. The emphasis is on work published post 1990, but earlier work is also included as essential background and where no more recent information exists. Attention is drawn to unexplored areas meriting investigation and to possible applications of these complexes.

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“…If k3 and kR are small, then backtransfer will produce little change in (eq 3). * 2 and 2E are nearly equienergetic in Cr(H20)63+ 40,41 and the 2E 4A2 energy is constant (±200 cm-1) within the entire group of Cr(NH3)6_n(H20)n3+ complexes in rigid glasses. In Cr-(H20)63+, the energy difference between the 4T2 *-4A2 absorption maximum and the 2E -* 4T2 0-0 band is 2200 cm"1.…”

Section: Discussionmentioning

confidence: 90%

2E relaxation in aquoammine chromium(III) complexes

Forster¹,

Rund²,

Castelli³

et al. 1982

J. Phys. Chem.

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Luminescence behavior and light absorption of some fluoro complexes of tervalent chromium

Cited by 61 publications

References 0 publications

Electronic spectra of the hexafluorometalate(III) complexes of the first transition series

Electronic spectra of the hexafluorometalate(III) complexes of the first transition series

Medium and high oxidation state metal/non-metal fluoride and oxide–fluoride complexes with neutral donor ligands

2E relaxation in aquoammine chromium(III) complexes

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