Mössbauer spectra of tin(IV) iodide complexes

Tudela, David; Sánchez-Herencia, Antonio Javier; Díaz, María Asunción Romero; Fernández-Ruiz, Ramón; Menéndez, Nieves; Tornero, J.D.

doi:10.1039/a905917b

Cited by 20 publications

(23 citation statements)

References 52 publications

(41 reference statements)

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“…1(a) shows formation of pure B-γCsSnI 3 [5,9,14], whereas XRD in Fig. 1(b) of CsSnI 3 synthesized through solution route shows peaks of B-γ-CsSnI 3 and YCsSnI 3 along with peaks of mixed halides CsSnI 3À x Cl x (x¼0, 1, 2, and 3).…”

Section: Resultsmentioning

confidence: 99%

“…This SnI 2 undergoes photochemical reactions enhanced by visible and UV radiation initially to black SnO and further to white and insoluble SnO 2 powder. CsSnI 3 perovskite stability depends on the Sn cation [13], and the hypervalent Sn(II) cation undergoes spontaneous oxidation with small activation energy under ambient conditions making B-CsSnI 3 unstable under ambient conditions [13,14].…”

Section: Resultsmentioning

confidence: 99%

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Recrystallization and phase stability study of cesium tin iodide for application as a hole transporter in dye sensitized solar cells

Peedikakkandy

Bhargava

2015

Materials Science in Semiconductor Processing

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Recrystallization and phase stability study of cesium tin iodide for application as a hole transporter in dye sensitized solar cells

Peedikakkandy

Bhargava

2015

Materials Science in Semiconductor Processing

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“…[11,20] In 1939, Werker et al reported the X-ray powder crystal analysis of Cs 2 SnI 6 and later Tudela et al determined its crystal structure to be cubic Fm3m (a=11.6410(3) at room temperature Å). [129][130] Very rare research work on this material was reported since then, until recent successful implementation as an effective hole-conductor in solid-state dye-sensitized solar cells as well as its systematic material characterizations and theoretical calculations. [17][18][19]131] Unlike CsSnI 3 and other Sn (II)-based halide perovskites that normally exhibit p-type conductivity owing to facile formation of Sn vacancies, pristine Cs 2 SnI 6 is an intrinsic n-type semiconductor with carrier concentrations on an order of ≈10 16 cm −3 or ≈10 14 cm −3 depending on different preparation methods.…”

Section: Tin (Iv) Halide Perovskitesmentioning

confidence: 99%

Addressing Toxicity of Lead: Progress and Applications of Low‐Toxic Metal Halide Perovskites and Their Derivatives

Lyu

Yun

Chen

et al. 2017

Advanced Energy Materials

336

259

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Metal halide perovskites have been brought to the forefront of research focus in solution-processable photovoltaics, with the device efficiency swiftly surging to over 22% over the past few years. The state-of-the-art metal halide perovskites that have been intensively investigated include toxic lead, which potentially hampers their commercialization process. To address this toxicity issue, intensive recent research effort has been devoted to developing low-toxic metal halide perovskites and their derivatives for photovoltaic applications. Herein, the recent research progress achieved so far in

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“…For 3, the mössbauer parameters are consistent with cis-coordinated SnCl 4 molecule containing compounds then with the proposed formula. In the past, numerous structures with various O-donor ligands coordinated to SnCl 4 molecules in a cis or trans fashion were described, especially the crystal and mössbauer relationship of SnI 4 L 2 (L=bipy, Ph 3 PO or Ph 2 SO) complexes which exhibit cis-structures [26]. The cis-trans isomers of the adducts SnCl 4 L 2 (L=N, N-dimethylformamide (dmf), N, N-dimethylacetamide (dma), or dimethyl sulphoxide (dmso)) have also been reported [21].…”

Section: Structure Descriptionmentioning

confidence: 99%

Synthesis, Infrared and Mössbauer Characterization of Some Chloridestannate (IV) Inorganic-organic Hybrid Complexes: Sn-Ph Bonds Cleavage

Seye¹,

Diop²,

Toure³

et al. 2019

AJHC

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Five new compounds are isolated from reactions carried out in solution. All the compounds are characterized by, Infrared and Mössbauer spectroscopies. Spectroscopic studies have shown the presence of different carracterristic bands, notably υ (PO) vibrations coming from triphenylphosphine oxide, with wide absorption due to the NH 2 groups coming from urea and the intense doublet which show the presence of phenyl groups. The proposed structures, in the solid state, are discrete though hydrogen bonding interactions may occur. Event in this study is the dearylation evidenced, cleaved Sn-Ph bonds occurring in the presence of triphenylphosphine oxide or urea, during some reaction processes. In the presence of triphenylphosphine oxide, the dearylation is followed by the formation of Sn-Cl new bonds while in the presence of urea, the Sn-Ph bonds cleavage undergo with a deamination of the urea giving rise to the formation of Sn-N and Sn-Cl new bonds whose presence are ascertained by the Mössbauer parameters. The oxidation of tin (II) to tin (IV) as well as the coordination behavior of the oxonium, H 3 O + cation is also noted in this work. In the reaction of triphenylphosphine oxide with SnCl 2. 2H 2 O and nitric acid, we have obtained compounds in which tin has oxidized. The reactions between urea and SnPh 3 Cl are the site of a species exchange which can be explained by a deamination of urea and a dephenylation of SnPh 3 Cl Studies aimed at understanding the processes of this transformation still unknown leading to the isolation of aminochlorotin (IV) compounds and isolating their single crystals are being carried in our laboratory (LA.CHI.MI.A).

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Mössbauer spectra of tin(IV) iodide complexes

Cited by 20 publications

References 52 publications

Recrystallization and phase stability study of cesium tin iodide for application as a hole transporter in dye sensitized solar cells

Recrystallization and phase stability study of cesium tin iodide for application as a hole transporter in dye sensitized solar cells

Addressing Toxicity of Lead: Progress and Applications of Low‐Toxic Metal Halide Perovskites and Their Derivatives

Synthesis, Infrared and Mössbauer Characterization of Some Chloridestannate (IV) Inorganic-organic Hybrid Complexes: Sn-Ph Bonds Cleavage

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