Supramolecular chains and coordination nanowires constructed of high-spin clusters and 4,4'-bpdo linkers

2013
journal article
article
33
cris.lastimport.wos2024-04-09T22:32:34Z
dc.abstract.enCyanido-bridged high-spin $\{Co^{II}[Co^{II}(MeOH)_{3}]_{8}[W^{V}(CN)_{8}]_{6}\} (Co_{9}W_{6})$ clusters revealing single-molecule magnet behavior were combined with 4,{4}'-bipyridine-N,N′-dioxide (4,{4}'-bpdo) linkers, giving unique H-bonded supramolecular $\{Co^{II}_{9}(MeOH)_{24}[W^{V}(CN)_{8}]_{6}\}\cdot 4,{4}'-bpdo \cdot MeOH \cdot 2H_{2}O$ (1) chains and one-dimensional coordination $\{Co^{II}[Co^{II}(4,{4}'-bpdo)_{1.5}(MeOH)]_{8}[W^{V}(CN)_{8}]_{6}\} \cdot 2H_{2}O$ (2) nanowires. The hydrogen-bonded chains of 1 are embedded within the three-dimensional supramolecular network stabilized by the series of noncovalent interactions between $Co_{9}W_{6}$ clusters, 4,{4}'-bpdo, and solvent molecules. The coordination nanowires 2, revealing an average core diameter of about 11 \AA , are arranged parallel with the significant separation in the crystal structure, leading to a microporous supramolecular network with broad channels (12 × 12 \AA) filled by methanol and water. Both 1 and 2 are stable only in a mother solution or an organic protectant, whereas they undergo the fast exchange of methanol ligands to water molecules during drying in the air. Synthesized materials preserve the magnetic characteristics of $Co_{9}W_{6}$ clusters with an effective ferromagnetic coupling, giving a ground-state spin of 15/2. For 2, the additional antiferromagnetic intercluster interactions are observed. Below 3 K, the frequency-dependent $\chi _{M}$ (T) signals of 1 and 2 indicate the onset of slow magnetic relaxation. For 1, the relaxation time follows the Arrhenius law with an energy gap of $\Delta / k_{B}= 10.3(5) K$ and $\tau _{0}= 4(1) \times 10^{-9} s$, which is consistent with single-molecule magnet behavior.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.authorChorąży, Szymon - 107013 pl
dc.contributor.authorPodgajny, Robert - 131465 pl
dc.contributor.authorNitek, Wojciech - 130975 pl
dc.contributor.authorRams, Michał - 100567 pl
dc.contributor.authorOhkoshi, Shin-ichipl
dc.contributor.authorSieklucka, Barbara - 131848 pl
dc.date.accessioned2015-06-10T18:08:43Z
dc.date.available2015-06-10T18:08:43Z
dc.date.issued2013pl
dc.description.number7pl
dc.description.physical3036-3045pl
dc.description.publication1pl
dc.description.volume13pl
dc.identifier.doi10.1021/cg400448xpl
dc.identifier.eissn1528-7505pl
dc.identifier.issn1528-7483pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/9292
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.licencebez licencji
dc.rights.uri*
dc.subtypeArticlepl
dc.titleSupramolecular chains and coordination nanowires constructed of high-spin ${Ni^{II}}_9{W^V}_6$ clusters and 4,4'-bpdo linkerspl
dc.title.journalCrystal Growth & Designpl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-09T22:32:34Z
dc.abstract.enpl
Cyanido-bridged high-spin $\{Co^{II}[Co^{II}(MeOH)_{3}]_{8}[W^{V}(CN)_{8}]_{6}\} (Co_{9}W_{6})$ clusters revealing single-molecule magnet behavior were combined with 4,{4}'-bipyridine-N,N′-dioxide (4,{4}'-bpdo) linkers, giving unique H-bonded supramolecular $\{Co^{II}_{9}(MeOH)_{24}[W^{V}(CN)_{8}]_{6}\}\cdot 4,{4}'-bpdo \cdot MeOH \cdot 2H_{2}O$ (1) chains and one-dimensional coordination $\{Co^{II}[Co^{II}(4,{4}'-bpdo)_{1.5}(MeOH)]_{8}[W^{V}(CN)_{8}]_{6}\} \cdot 2H_{2}O$ (2) nanowires. The hydrogen-bonded chains of 1 are embedded within the three-dimensional supramolecular network stabilized by the series of noncovalent interactions between $Co_{9}W_{6}$ clusters, 4,{4}'-bpdo, and solvent molecules. The coordination nanowires 2, revealing an average core diameter of about 11 \AA , are arranged parallel with the significant separation in the crystal structure, leading to a microporous supramolecular network with broad channels (12 × 12 \AA) filled by methanol and water. Both 1 and 2 are stable only in a mother solution or an organic protectant, whereas they undergo the fast exchange of methanol ligands to water molecules during drying in the air. Synthesized materials preserve the magnetic characteristics of $Co_{9}W_{6}$ clusters with an effective ferromagnetic coupling, giving a ground-state spin of 15/2. For 2, the additional antiferromagnetic intercluster interactions are observed. Below 3 K, the frequency-dependent $\chi _{M}$ (T) signals of 1 and 2 indicate the onset of slow magnetic relaxation. For 1, the relaxation time follows the Arrhenius law with an energy gap of $\Delta / k_{B}= 10.3(5) K$ and $\tau _{0}= 4(1) \times 10^{-9} s$, which is consistent with single-molecule magnet behavior.
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
Chorąży, Szymon - 107013
dc.contributor.authorpl
Podgajny, Robert - 131465
dc.contributor.authorpl
Nitek, Wojciech - 130975
dc.contributor.authorpl
Rams, Michał - 100567
dc.contributor.authorpl
Ohkoshi, Shin-ichi
dc.contributor.authorpl
Sieklucka, Barbara - 131848
dc.date.accessioned
2015-06-10T18:08:43Z
dc.date.available
2015-06-10T18:08:43Z
dc.date.issuedpl
2013
dc.description.numberpl
7
dc.description.physicalpl
3036-3045
dc.description.publicationpl
1
dc.description.volumepl
13
dc.identifier.doipl
10.1021/cg400448x
dc.identifier.eissnpl
1528-7505
dc.identifier.issnpl
1528-7483
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/9292
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
Supramolecular chains and coordination nanowires constructed of high-spin ${Ni^{II}}_9{W^V}_6$ clusters and 4,4'-bpdo linkers
dc.title.journalpl
Crystal Growth & Design
dc.typepl
JournalArticle
dspace.entity.type
Publication

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