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

J 2007

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

JESS, Inke, Petr TÁBORSKÝ a Christian NAETHER

Základní údaje

Originální název

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

Název česky

Syntéza, krystalová struktura a vlastnosti koordinačního polymeru CuBr(2,3-dimethylpyrazin)

Autoři

JESS, Inke (276 Německo), Petr TÁBORSKÝ (203 Česká republika, garant, domácí) a Christian NAETHER (276 Německo)

Vydání

Z. Naturforsch. 2007, 0932-0776

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10402 Inorganic and nuclear chemistry

Stát vydavatele

Německo

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 0.770

Kód RIV

RIV/00216224:14310/07:00050881

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000247015500003

Klíčová slova anglicky

coordination polymers; luminescence; copper(I)

Štítky

Coordination polymers, COPPER(I), luminescence

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 13. 4. 2012 10:48, doc. Mgr. Petr Táborský, Ph.D.

Anotace

ORIG CZ

V originále

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. If CuBr and the ligand are reacted in a ratio of I : 1, in the beginning the literature known ligand-deficient 3 : 2 intermediate catena[tribromo-mu(2)-bis(mu(2)-2,3-dimethylpyrazine-N,N')-tricopper(I)] (2) is obtained, which transforms within minutes into compound 3. If a crystalline suspension of compound I is stirred in acetonitrile a transformation into the most stable compound 3 is also observed. The luminescence properties of compounds 1 and 3 were investigated. The complexes show differences mainly in the emission spectra.

Česky

Reakce CuBr s přebytkem 2,3-dimethylpyrazine v acetonitrilu vedla k tvorbě několika nových koordinačních polymerů (s různou strukturou a stechiometrii), které byly strukturně a spektroskopicky charakterizovány.

Citovat

JESS, Inke, Petr TÁBORSKÝ a Christian NAETHER. Synthesis, crystal structure and properties of CuBr(2,3-dimethylpyrazine) coordination polymers. Z. Naturforsch. 2007, roč. 62, č. 4, s. 501-507, 8 s. ISSN 0932-0776.

@article{747324,
   author = {Jess, Inke and Táborský, Petr and Naether, Christian},
   article_number = {4},
   keywords = {coordination polymers; luminescence; copper(I)},
   language = {eng},
   issn = {0932-0776},
   journal = {Z. Naturforsch.},
   title = {Synthesis, crystal structure and properties of CuBr(2,3-dimethylpyrazine) coordination polymers},
   volume = {62},
   year = {2007}
}

TY  - JOUR
ID  - 747324
AU  - Jess, Inke - Táborský, Petr - Naether, Christian
PY  - 2007
TI  - Synthesis, crystal structure and properties of CuBr(2,3-dimethylpyrazine) coordination polymers
JF  - Z. Naturforsch.
VL  - 62
IS  - 4
SP  - 501-507
EP  - 501-507
SN  - 09320776
KW  - coordination polymers
KW  - luminescence
KW  - copper(I)
N2  - 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. If CuBr and the ligand are reacted in a ratio of I : 1, in the beginning the literature known ligand-deficient 3 : 2 intermediate catena[tribromo-mu(2)-bis(mu(2)-2,3-dimethylpyrazine-N,N')-tricopper(I)] (2) is obtained, which transforms within minutes into compound 3. If a crystalline suspension of compound I is stirred in acetonitrile a transformation into the most stable compound 3 is also observed. The luminescence properties of compounds 1 and 3 were investigated. The complexes show differences mainly in the emission spectra.
ER  -

JESS, Inke, Petr TÁBORSKÝ a Christian NAETHER. Synthesis, crystal structure and properties of CuBr(2,3-dimethylpyrazine) coordination polymers. \textit{Z. Naturforsch.}. 2007, roč.~62, č.~4, s.~501-507, 8 s. ISSN~0932-0776.

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