Synthesis, crystal structure and properties of CuBr(2,3-dimethylpyrazine) coordination polymers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F07%3A00050881" target="_blank" >RIV/00216224:14310/07:00050881 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis, crystal structure and properties of CuBr(2,3-dimethylpyrazine) coordination polymers

Popis výsledku v původním jazyce

Reaction of CuBr with an excess of 2,3-dimethylpyrazine in acetonitrile leads to the formation of the literature known ligand-rich 1 : 1 compound poly [mu(2)-bromo-mu(2)-2,3-dimethylpyrazine-N,N'-copper(I)] (1). On heating this compound in a thermobalance a transformation into the new ligand-deficient 2: 1 compound poly [di-mu(3) -bromo-mu(2) -2,3-dimethylpyrazine-N,N'-dicopper(I)] (3) is observed, which later was also prepared in solution. This compound crystallizes in the monoclinic space group P2(1)/n with all atoms in general positions. In the crystal structure the Cu atoms are surrounded by three Br atoms and one 2,3-dimethylpyrazine ligand within a distorted tetrahedron. The tetrahedra are connected via common Br edges into CuBr double chains, which are connected by the ligands into layers located in the ab plane. The formation of compounds 1 and 3 was also investigated in solution. The results have shown that compound 1 can only be prepared if an excess of the ligand is used.

Název v anglickém jazyce

Synthesis, crystal structure and properties of CuBr(2,3-dimethylpyrazine) coordination polymers

Popis výsledku anglicky

Reaction of CuBr with an excess of 2,3-dimethylpyrazine in acetonitrile leads to the formation of the literature known ligand-rich 1 : 1 compound poly [mu(2)-bromo-mu(2)-2,3-dimethylpyrazine-N,N'-copper(I)] (1). On heating this compound in a thermobalance a transformation into the new ligand-deficient 2: 1 compound poly [di-mu(3) -bromo-mu(2) -2,3-dimethylpyrazine-N,N'-dicopper(I)] (3) is observed, which later was also prepared in solution. This compound crystallizes in the monoclinic space group P2(1)/n with all atoms in general positions. In the crystal structure the Cu atoms are surrounded by three Br atoms and one 2,3-dimethylpyrazine ligand within a distorted tetrahedron. The tetrahedra are connected via common Br edges into CuBr double chains, which are connected by the ligands into layers located in the ab plane. The formation of compounds 1 and 3 was also investigated in solution. The results have shown that compound 1 can only be prepared if an excess of the ligand is used.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Z. Naturforsch.

ISSN

0932-0776

e-ISSN

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Svazek periodika

62

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

501-507

Kód UT WoS článku

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EID výsledku v databázi Scopus

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