High-resolution XANES spectra of iron in minerals and glasses: structural information from the pre-edge region

Galoisy, Laurence; Calas, Georges; Arrio, Marie‐Anne

doi:10.1016/s0009-2541(00)00322-3

Cited by 203 publications

(175 citation statements)

References 37 publications

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“…12,13,24,29,31,32,34 In general, ferrous iron (Fe 2+ ) tends to occupy a distribution of four, five, and sixfold coordination sites with oxygen, where interpretations of x-ray absorption spectroscopy (XAS) measurements suggest that four and fivefold coordinated Fe sites dominate. 22,23,25,30,34,36 This result is, however, in contrast to Raman and optical absorption spectra, which report Fe 2+ in sixfold coordination. 6,7,9,17,18,42 By comparison, very little direct information is available on the local coordination environment in iron silicate melts due to the difficulty of performing experiments at high temperatures.…”

Section: Introductioncontrasting

confidence: 85%

Structure of (FexCa1−xO)y(SiO
Drewitt
¹
,
Sanloup
²
,
Bytchkov
³

et al. 2013
Phys. Rev. B

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Section: Introductioncontrasting

confidence: 85%

Structure of (FexCa1−xO)y(SiO
Drewitt
¹
,
Sanloup
²
,
Bytchkov
³

et al. 2013
Phys. Rev. B

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“…4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23]. XANES spectroscopy has also been successfully applied to the speciation of Mn in minerals and glass [e.g.…”

Section: Introductionmentioning

confidence: 99%

A XANES study of chromophores in archaeological glass

2012

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Abstract:We applied X-ray Absorption Near Edge Spectroscopy (XANES) to obtain information on the origin of glass color of several archaeological samples and on the oxidation conditions employed during their production. We studied a series of selected glass fragments mainly from excavated primary and secondary production centers and dated to the first millennium AD containing iron and manganese in a wide compositional range. In most of the studied samples iron is rather oxidized, while Mn K-edge XANES data show that, in all the studied glass, Mn is mainly present in its reduced form (predominantly 2+), with the possible subordinate presence of Mn3+. The most oxidized samples are the HIMT (High Iron Manganese Titanium) glasses, while the less oxidized belong to the primary natron glass series from the early Islamic tank furnaces at Bet Eliezer (Israel), and to the series coming from a Roman glass workshop excavated in Basinghall Street, London. In these glasses, iron is approximately equally distributed over the 2+ and 3+ oxidation states. The XANES analyses of two glass which had been deliberately decolorized using Sb-and Mnbased decolorizers, demonstrate that Sb is more effective than Mn as oxidant.Response to Reviewers: Torino 04/10/12Dear Editor please find enclosed the revised version of the manuscript APYA-D-12-00685 "A XANES study of chromophores in archaeological glass." by Rossella Arletti, Simona Quartieri and Ian Freestone, modified after the reviewers' comments. All the points raised by the reviewers are commented in the following. Editor:The manuscript may look just as "another paper reporting the study of ancient glasses from other provenances" once the novelty eventually contained in the submitted manuscript is not dully emphasized. Beyond complementing the reported chemical data, a more detailed physical discussion of XANES results would help support the submission of the manuscript to Applied Physics A, Materials Science & Processing.-A table with the whole chemical analyses of all the samples was provided -some more details have been added to the description of the method adopted for the determination of Fe oxidation state. Powered by Editorial Manager® and Preprint Manager® from Aries Systems CorporationReviewer #1: Page 2, line 57-58: It would benefit the readers to include a reference of using arsenic to control the color due to Fe oxidation state as I found it is less common than antimony and manganese for the same role.-As far as we are aware, arsenic was not used regularly as a decolorant in glass until the eighteenth century AD in Bohemia. It was used on a regular basis in the nineteenth century (see Dungworth D, 2011. The Value of Historic Window Glass. The Historic Environment 2, 21-48). This reference has been added to the manuscript.Page 3, line 26: Please delete a space before the last bracket.-The text was corrected according to the referee suggestion Page 3, line 30: Please use a comma between 20 and 21.-The text was corrected according to the referee suggestion Page 4, line 13: The...

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“…Indeed, the centroid position of the pre-edge 1s->3d absorption is sensitive to the oxidation state, being splitted by 2 eV for the Fe 2+ and Fe 3+ state, 20 being the Fe 2+ at lower energy. These two characteristic positions fairly agree with our data on the two reference materials.…”

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confidence: 99%

Structure of the FeBTC Metal–Organic Framework: A Model Based on the Local Environment Study

et al. 2015

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The local environment of iron in FeBTC, a metal organic framework commercially known as Basolite F300, is investigated combining XANES and EXAFS studies of the iron Kedge. The building block of the FeBTC can be described as an iron acetate moiety. Dehydration induces a change in the coordination of the first shell while preserving the network. We propose that the local structure around Fe atoms does not undergo a rearrangement, thus leading to the formation of an open site. The analysis conveys that the FeBTC is a disordered network of locally ordered blocks.

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High-resolution XANES spectra of iron in minerals and glasses: structural information from the pre-edge region

Cited by 203 publications

References 37 publications

Structure of (FexCa1−xO)y(SiO
Drewitt
¹
,
Sanloup
²
,
Bytchkov
³

et al. 2013
Phys. Rev. B

Structure of (FexCa1−xO)y(SiO
Drewitt
¹
,
Sanloup
²
,
Bytchkov
³

et al. 2013
Phys. Rev. B

A XANES study of chromophores in archaeological glass

Structure of the FeBTC Metal–Organic Framework: A Model Based on the Local Environment Study

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High-resolution XANES spectra of iron in minerals and glasses: structural information from the pre-edge region

Cited by 203 publications

References 37 publications

Structure of (FexCa1−xO)y(SiODrewitt1, Sanloup2, Bytchkov3 et al. 2013Phys. Rev. B

Structure of (FexCa1−xO)y(SiODrewitt1, Sanloup2, Bytchkov3 et al. 2013Phys. Rev. B

A XANES study of chromophores in archaeological glass

Structure of the FeBTC Metal–Organic Framework: A Model Based on the Local Environment Study

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Product

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About

Structure of (FexCa1−xO)y(SiO
Drewitt
¹
,
Sanloup
²
,
Bytchkov
³

et al. 2013
Phys. Rev. B

Structure of (FexCa1−xO)y(SiO
Drewitt
¹
,
Sanloup
²
,
Bytchkov
³

et al. 2013
Phys. Rev. B