Role of pyrazine-N,N'-dioxide in -based hybrid networks : anion- interactions

2014
journal article
article
21
dc.abstract.enPyrazine-N,{N}' -dioxide (pzdo) was used as a linker in the design and synthesis of hybrid octacyanometalate-based networks. Four new compounds $Na_{6}[W^{V}(CN)_{8}]_{2}(pzdo)_{7} \cdot 5H_{2}O$ (1), $K_{3}[W^{V}(CN)_{8}](pzdo)_{2} \cdot 4H_{2}O$ (2), ${Mn{_{6}}^{II}(pzdo)_{4}(MeOH)_{10}[W^{V}(CN)_{8}]_{4}} \cdot 4MeOH$ (3), and ${Mn{_{2}}^{II}(pzdo)(H_{2}O)_{4}[W^{IV}(CN)_{8}]} \cdot 4H_{2}O$ (4) reveal specific $M-pzdo-[W(CN)_{8}]^{3-/4-} (M = Na^{I}, K^{I}, Mn^{II})$ structural arrangements where pzdo plays a significant role. Apart from typical supramolecular interactions including hydrogen bonding and van der Waals interactions, the ${[M(\mu-pzdo)M][W(CN)_{8}]_{x}}$ (x = 1 or 2) structural motifs in 1–4 are organized by specific supramolecular interactions of the pzdo molecule and the octacyanotungstate anions: face-to-face sandwich type interactions between the plane of the pzdo aromatic ring and $N_{4}$ square face of $[W(CN)_{8}]^{n-}$ anions, edge-to-face interactions between the plane of the pyrazine ring and a pair of neighboring $N_{CN}$ atoms of the $[W(CN)_8]$-moiety, and end-to-face interactions between the plane of the pyrazine ring and a single $N_{CN}$ atoms of the $[W(CN)_{8}]$-moiety. The related intermolecular arrangements show features typical for anion−π interactions, unprecedented in the octacyanometalate chemistry. The specific interactions of the octacyanotungstate and the pzdo molecule in 1 and 2 lead to significant modification of their electronic spectra. Magnetic studies revealed that 1, 2, and 4 are paramagnetic, although 3 orders antiferromagnetically at $T_{C}$ = 17.5 K.pl
dc.affiliationWydział Chemii : Zakład Chemii Nieorganicznejpl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.affiliationWydział Chemii : Zakład Krystalochemii i Krystalofizykipl
dc.contributor.authorPodgajny, Robert - 131465 pl
dc.contributor.authorPinkowicz, Dawid - 126341 pl
dc.contributor.authorCzarnecki, Bernard - 117084 pl
dc.contributor.authorKozieł, Marcin - 133981 pl
dc.contributor.authorChorąży, Szymon - 107013 pl
dc.contributor.authorWis, Magdalenapl
dc.contributor.authorNitek, Wojciech - 130975 pl
dc.contributor.authorRams, Michał - 100567 pl
dc.contributor.authorSieklucka, Barbara - 131848 pl
dc.date.accessioned2015-05-27T09:14:59Z
dc.date.available2015-05-27T09:14:59Z
dc.date.issued2014pl
dc.description.number8pl
dc.description.physical4030-4040pl
dc.description.publication1pl
dc.description.volume14pl
dc.identifier.doi10.1021/cg500636mpl
dc.identifier.eissn1528-7505pl
dc.identifier.issn1528-7483pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/8188
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.licencebez licencji
dc.rights.uri*
dc.subtypeArticlepl
dc.titleRole of pyrazine-N,N'-dioxide in $[W(CN)_{8}]^{n-}$-based hybrid networks : anion-$\pi$ interactionspl
dc.title.journalCrystal Growth & Designpl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
Pyrazine-N,{N}' -dioxide (pzdo) was used as a linker in the design and synthesis of hybrid octacyanometalate-based networks. Four new compounds $Na_{6}[W^{V}(CN)_{8}]_{2}(pzdo)_{7} \cdot 5H_{2}O$ (1), $K_{3}[W^{V}(CN)_{8}](pzdo)_{2} \cdot 4H_{2}O$ (2), ${Mn{_{6}}^{II}(pzdo)_{4}(MeOH)_{10}[W^{V}(CN)_{8}]_{4}} \cdot 4MeOH$ (3), and ${Mn{_{2}}^{II}(pzdo)(H_{2}O)_{4}[W^{IV}(CN)_{8}]} \cdot 4H_{2}O$ (4) reveal specific $M-pzdo-[W(CN)_{8}]^{3-/4-} (M = Na^{I}, K^{I}, Mn^{II})$ structural arrangements where pzdo plays a significant role. Apart from typical supramolecular interactions including hydrogen bonding and van der Waals interactions, the ${[M(\mu-pzdo)M][W(CN)_{8}]_{x}}$ (x = 1 or 2) structural motifs in 1–4 are organized by specific supramolecular interactions of the pzdo molecule and the octacyanotungstate anions: face-to-face sandwich type interactions between the plane of the pzdo aromatic ring and $N_{4}$ square face of $[W(CN)_{8}]^{n-}$ anions, edge-to-face interactions between the plane of the pyrazine ring and a pair of neighboring $N_{CN}$ atoms of the $[W(CN)_8]$-moiety, and end-to-face interactions between the plane of the pyrazine ring and a single $N_{CN}$ atoms of the $[W(CN)_{8}]$-moiety. The related intermolecular arrangements show features typical for anion−π interactions, unprecedented in the octacyanometalate chemistry. The specific interactions of the octacyanotungstate and the pzdo molecule in 1 and 2 lead to significant modification of their electronic spectra. Magnetic studies revealed that 1, 2, and 4 are paramagnetic, although 3 orders antiferromagnetically at $T_{C}$ = 17.5 K.
dc.affiliationpl
Wydział Chemii : Zakład Chemii Nieorganicznej
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
dc.affiliationpl
Wydział Chemii : Zakład Krystalochemii i Krystalofizyki
dc.contributor.authorpl
Podgajny, Robert - 131465
dc.contributor.authorpl
Pinkowicz, Dawid - 126341
dc.contributor.authorpl
Czarnecki, Bernard - 117084
dc.contributor.authorpl
Kozieł, Marcin - 133981
dc.contributor.authorpl
Chorąży, Szymon - 107013
dc.contributor.authorpl
Wis, Magdalena
dc.contributor.authorpl
Nitek, Wojciech - 130975
dc.contributor.authorpl
Rams, Michał - 100567
dc.contributor.authorpl
Sieklucka, Barbara - 131848
dc.date.accessioned
2015-05-27T09:14:59Z
dc.date.available
2015-05-27T09:14:59Z
dc.date.issuedpl
2014
dc.description.numberpl
8
dc.description.physicalpl
4030-4040
dc.description.publicationpl
1
dc.description.volumepl
14
dc.identifier.doipl
10.1021/cg500636m
dc.identifier.eissnpl
1528-7505
dc.identifier.issnpl
1528-7483
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/8188
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Dodaję tylko opis bibliograficzny
dc.rights.licence
bez licencji
dc.rights.uri*
dc.subtypepl
Article
dc.titlepl
Role of pyrazine-N,N'-dioxide in $[W(CN)_{8}]^{n-}$-based hybrid networks : anion-$\pi$ interactions
dc.title.journalpl
Crystal Growth & Design
dc.typepl
JournalArticle
dspace.entity.type
Publication

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