Photooxidation of dichloro- and trichlorocuprate(I) ions in acid solution

Davis, Deborah Winders; Stevenson, Kenneth L.; Davis, Charles R.

doi:10.1021/ja00485a015

Cited by 63 publications

(27 citation statements)

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“…In dilute acid chloride solutions, many studies agree that the dominant copper(I) complexes are CuCl (aq) and/or CuCl 2 À . (e.g., Glasner and Avinur, 1961;Sukhova et al, 1968;Ahrland and Rawsthorne, 1970;Hikita et al, 1973;Sugasaka and Fujii, 1976;Davis et al, 1978;Fritz, 1980;Sharma and Millero, 1990;Ciavatta and Iuliano, 1998;Xiao et al, 1998). There have been a few experimental studies of copper(I) chloride complexes at elevated temperature and pressure.…”

Section: Copper(i) Chloride Complexingmentioning

confidence: 99%

An XAS study of the structure and thermodynamics of Cu(I) chloride complexes in brines up to high temperature (400°C, 600bar)

Brugger

Etschmann

Liu

et al. 2007

Geochimica et Cosmochimica Acta

127

100

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Section: Copper(i) Chloride Complexingmentioning

confidence: 99%

An XAS study of the structure and thermodynamics of Cu(I) chloride complexes in brines up to high temperature (400°C, 600bar)

Brugger

Etschmann

Liu

et al. 2007

Geochimica et Cosmochimica Acta

127

100

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“…Plots (4) or some combination of these schemes. Of the two possible sequences, base catalysis would appear to be more plausible for the following reasons.…”

Section: Resultsmentioning

confidence: 99%

Tetraamine complexes of chromium(III). 4. Kinetics of the aquation of the cis-aquabis(ethylenediamine)iodochromium(III) cation

Chang¹,

Vaughn²

1982

Inorg. Chem.

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“…Copper(I) chloride or bromide, prepared as described earlier, 1 was the source of the bromo-and chlorocuprate(I) complexes in all of the solutions. Stock solutions were prepared from reagent grade sodium chloride, sodium bromide, hydrochloric acid, hydrobromic acid, or sodium perchlorate and standardized by density.…”

Section: Methodsmentioning

confidence: 99%

Prompt and Delayed Electron Ejection from Photoexcited Aqueous Bromo- and Chlorocuprate(I) Complexes

et al. 1997

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Two different routes for ejection of hydrated electrons by photoexcited CuCl 2 -and CuCl 3 2-have been observed: (1) a prompt (i.e. within the 5-ns laser pulse width) ejection directly from the charge-transfer excited states (characterized as CTTS or Rydberg states), and (2) a delayed ejection, with lifetimes of up to 105 ns, from the triplet states of the two complexes. These two processes have rather high quantum yields: 0.30-0.40 for the prompt ejection and 0.25-0.33 for the delayed ejection for the chlorocuprate(I) complexes. The delayed ejection process is the primary decay route for the two triplet species, 3 CuCl 2 -and 3 CuCl 3 2-, which are formed by intersystem crossing from the charge-transfer excited states formed by absorption of light by the bis-and triscoordinated complexes in equilibrium in the ground state. Both of the chlorocuprate triplet excited states are weakly luminescent species. The triplet tris species, 3 CuCl 3 2-, has a strong absorption band at 390 nm ( ≈ 27 000 M -1 cm -1 ), and the biscoordinated species, 3 CuCl 2 -, probably absorbs in the same region as well. Other intermediates such as Cu(0) complexes and Cl 2 •-radicals have also been observed as decay products. Prompt and delayed electron ejection has also been observed in CuBr 3 2-with quantum yields of 0.25 and 0.18, respectively. A mechanism that incorporates a triplet excited state equilibrium is invoked to account for these observations.

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Photooxidation of dichloro- and trichlorocuprate(I) ions in acid solution

Cited by 63 publications

References 0 publications

An XAS study of the structure and thermodynamics of Cu(I) chloride complexes in brines up to high temperature (400°C, 600bar)

An XAS study of the structure and thermodynamics of Cu(I) chloride complexes in brines up to high temperature (400°C, 600bar)

Tetraamine complexes of chromium(III). 4. Kinetics of the aquation of the cis-aquabis(ethylenediamine)iodochromium(III) cation

Prompt and Delayed Electron Ejection from Photoexcited Aqueous Bromo- and Chlorocuprate(I) Complexes

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