Synthesis, X-ray crystal structure and thermal decomposition of two peroxovanadium complexes with coordinated ammonia molecules: [{VO(O-2)2(NH3)}(2){[mu-Cu(NH3)(4)}] and [Zn(NH3)(4)][VO(O-2)(2)(NH3)](2)

CHRAPPOVÁ, J., P. SCHWENDT, D. DUDÁŠOVÁ, J. TATIERSKY and Jaromír MAREK. Synthesis, X-ray crystal structure and thermal decomposition of two peroxovanadium complexes with coordinated ammonia molecules: [{VO(O-2)2(NH3)}(2){[mu-Cu(NH3)(4)}] and [Zn(NH3)(4)][VO(O-2)(2)(NH3)](2). Polyhedron. Oxford: Pergamon-Elsevier Science, 2008, vol. 27, No 2, p. 641-647. ISSN 0277-5387.

Basic information

• Original name: Synthesis, X-ray crystal structure and thermal decomposition of two peroxovanadium complexes with coordinated ammonia molecules: [{VO(O-2)2(NH3)}(2){[mu-Cu(NH3)(4)}] and [Zn(NH3)(4)][VO(O-2)(2)(NH3)](2)
• Name in Czech: Syntéza, krystalová struktura a termální rozklad dvou peroxovanadičnatých komplexů koordinovaných amoniakem:[{VO(O-2)2(NH3)}(2){[mu-Cu(NH3)(4)}] and [Zn(NH3)(4)][VO(O-2)(2)(NH3)](2)
• Authors: CHRAPPOVÁ, J. (703 Slovakia), P. SCHWENDT (703 Slovakia), D. DUDÁŠOVÁ (703 Slovakia), J. TATIERSKY (703 Slovakia) and Jaromír MAREK (203 Czech Republic, guarantor).
• Edition: Polyhedron, Oxford, Pergamon-Elsevier Science, 2008, 0277-5387.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10402 Inorganic and nuclear chemistry
• Country of publisher: United Kingdom of Great Britain and Northern Ireland
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 1.801
• RIV identification code: RIV/00216224:14310/08:00026161
• Organization unit: Faculty of Science
• UT WoS: 000253518700021
• Keywords in English: peroxovanadium complexes; ammine complexes; X-ray structure; IR spectra; thermal decomposition
• Tags: ammine complexes, IR spectra, peroxovanadium complexes, thermal decomposition, X-RAY STRUCTURE

Abstract

The compounds [{VO(O-2)(2)(NH3)}(2){mu-Cu(NH3)(4)}] (1) and [Zn(NH3)(4)][VO(O-2)(2)(NH3)](2) (2) were prepared and characterized by elemental analysis and infrared spectra. The single crystal X-ray study revealed that the structure of 1 consists of trinuclear complex molecules [(NH3)OV(O-2)(2){mu-Cu(NH3)(4)}(O-2)(2)VO(NH3)] with a rare heterobimetalic peroxo bridge: copper(II)-peroxo ligand-vanadium(V). The structure of 2 is composed of tetraamminezinc(II) cations and ammineoxodiperoxovanadate(V) anions. In course of thermal decomposition of 1 performed up to 620 degrees C, the following intermediate products: [Cu(NH3)(2)(VO3)(2)], and subsequently a mixture of V2O5 with monoclinic beta-Cu2V2O7, were gradually formed. The final product of decomposition is Cu(Vo(3))(2). The thermal decomposition of 2 is a two-step process. In the first stage, [Zn(NH3)3(VO3)2] as supposed intermediate was formed, which transformed at higher temperatures by release of ammonia molecules to the monoclinic modification of Zn(VO3)(2).

Abstract (in Czech)

Sloučeniny [{VO(O-2)(2)(NH3)}(2){mu-Cu(NH3)(4)}] (1) a [Zn(NH3)(4)][VO(O-2)(2)(NH3)](2) (2) byly po přípravě charakterizovány elementár. analýzou a IČ spektry. RTG. krystalografií bylo zjištěno, že se struktura 1 skládá z 3-jader. komplexu [(NH3)OV(O-2)(2){mu-Cu(NH3)(4)}(O-2)(2)VO(NH3)] se vzácným bimetalickým peroxo můstkem Cu(II)-peroxoligand-V(V). Struktura 2 se skládá z tetraaminozinečnatých kationtů a aminooxodieroxo(V) aniontů.

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