Influence of the chain and layer structure of Fe(III) and In(III) aqua-pentachloro-complexes on the bending vibrations of water molecules期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Influence of the chain and layer structure of Fe(III) and In(III) aqua-pentachloro-complexes on the bending vibrations of water molecules

Authors:	P Piszczek A GrodzickiO Faurskov Nielsen B Engelen

Institution:	^a Faculty of Chemistry, Nicholaus Copernicus University, 7 Gagarina Street, 87-100 Toruń, Poland ^b Department of Chemistry, University of Copenhagen, 5-Universitetsparken, DK-2100 Copenhagen, Denmark ^c Institute of Inorganic Chemistry, University of Siegen, Adolf-Reichwein Street 9, D-57068 Siegen, Germany

Abstract:	Studies of IR and Raman spectra of monohydrates M^I₂M^IIICl₅(H₂O)] (where M^I=K⁺, Rb⁺, Cs⁺ and M^III=Fe³⁺, In³⁺) at 1400-1900 cm⁻¹ have been carried out. The medium intensity band, detected in the region 1580-1595 cm⁻¹ was assigned to bending vibrations of water molecules (δHOH). The shift of the δHOH band towards low wavenumbers (1580-1595 cm⁻¹) is a main sign of the water molecule interactions in the chain hydrates. Additionally in the IR and Raman spectra of these salts, the appearance of the low intensity band between 1750 and 1810 cm⁻¹ (ν_x(H₂O)) was observed. In the presented paper we also discuss the influence of M^I and M^III cations on the position and splitting of these bands.

Keywords:	Aqua-pentachloro-complexes of Fe(III) and In(III) Infrared and Raman spectroscopy Metal-ligand interactions
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