Tetranuclear Ru2Ln2 complexes of heavier lanthanides (Gd, Tb, Dy, Ho, Lu) with [RuNO(NO2)4OH]2− anion, combining SMM properties and photoswitchable Ru-NO group

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Tetranuclear Ru₂Ln₂ complexes of heavier lanthanides (Gd, Tb, Dy, Ho, Lu) with [RuNO(NO₂)₄OH]²⁻ anion, combining SMM properties and photoswitchable Ru-NO group. / Kostin, Gennadiy A.; Borodin, Alexander O.; Kuratieva, Natalia V. et al.

In: Inorganica Chimica Acta, Vol. 479, 01.07.2018, p. 135-140.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{792935b598ae4a2991520246ed98bb8f,

title = "Tetranuclear Ru2Ln2 complexes of heavier lanthanides (Gd, Tb, Dy, Ho, Lu) with [RuNO(NO2)4OH]2− anion, combining SMM properties and photoswitchable Ru-NO group",

abstract = "Five new heterometallic complexes with a {Ln[RuNO(µ-NO2)4(µ3-OH)]2Ln} (Ln = Gd, Tb, Dy, Ho, Lu) core were prepared by the reaction of Na2[RuNO(NO2)4OH] with lanthanide nitrates. Investigation of magnetic properties showed that magnetic interactions between lanthanide ions become apparent at temperatures lower than 40–50 K, while at temperatures higher than 100 K the dependencies of magnetic susceptibility of the complexes are well explained by the presence of two non-interacting paramagnetic centres. Frequency dependencies of magnetic susceptibility for the dysprosium complex in the temperature range 10–30 K revealed single molecule magnet (SMM) properties with a thermally activated slow magnetic relaxation process. The anisotropy barrier is 89.4 cm−1 (112 K) and τ0 = 7.6 × 10−7 s. Irradiation of the Dy2Ru2 complex with blue light (443 nm) at 80 K resulted in the formation of nitrosyl linkage isomers of the RuNO fragment; the Td of reverse isomerisation is 195 K.",

keywords = "INDUCED METASTABLE STATES, HETEROMETALLIC COMPLEXES, PHOTOCHROMIC CATION, LINKAGE ISOMERS, RUTHENIUM, POLYOXOMETALATE, FAMILY, NI, CO, LN",

author = "Kostin, {Gennadiy A.} and Borodin, {Alexander O.} and Kuratieva, {Natalia V.} and Bogomyakov, {Artem S.} and Mikhailov, {Artem A.}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = jul,

day = "1",

doi = "10.1016/j.ica.2018.04.006",

language = "English",

volume = "479",

pages = "135--140",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Tetranuclear Ru2Ln2 complexes of heavier lanthanides (Gd, Tb, Dy, Ho, Lu) with [RuNO(NO2)4OH]2− anion, combining SMM properties and photoswitchable Ru-NO group

AU - Kostin, Gennadiy A.

AU - Borodin, Alexander O.

AU - Kuratieva, Natalia V.

AU - Bogomyakov, Artem S.

AU - Mikhailov, Artem A.

PY - 2018/7/1

Y1 - 2018/7/1

N2 - Five new heterometallic complexes with a {Ln[RuNO(µ-NO2)4(µ3-OH)]2Ln} (Ln = Gd, Tb, Dy, Ho, Lu) core were prepared by the reaction of Na2[RuNO(NO2)4OH] with lanthanide nitrates. Investigation of magnetic properties showed that magnetic interactions between lanthanide ions become apparent at temperatures lower than 40–50 K, while at temperatures higher than 100 K the dependencies of magnetic susceptibility of the complexes are well explained by the presence of two non-interacting paramagnetic centres. Frequency dependencies of magnetic susceptibility for the dysprosium complex in the temperature range 10–30 K revealed single molecule magnet (SMM) properties with a thermally activated slow magnetic relaxation process. The anisotropy barrier is 89.4 cm−1 (112 K) and τ0 = 7.6 × 10−7 s. Irradiation of the Dy2Ru2 complex with blue light (443 nm) at 80 K resulted in the formation of nitrosyl linkage isomers of the RuNO fragment; the Td of reverse isomerisation is 195 K.

AB - Five new heterometallic complexes with a {Ln[RuNO(µ-NO2)4(µ3-OH)]2Ln} (Ln = Gd, Tb, Dy, Ho, Lu) core were prepared by the reaction of Na2[RuNO(NO2)4OH] with lanthanide nitrates. Investigation of magnetic properties showed that magnetic interactions between lanthanide ions become apparent at temperatures lower than 40–50 K, while at temperatures higher than 100 K the dependencies of magnetic susceptibility of the complexes are well explained by the presence of two non-interacting paramagnetic centres. Frequency dependencies of magnetic susceptibility for the dysprosium complex in the temperature range 10–30 K revealed single molecule magnet (SMM) properties with a thermally activated slow magnetic relaxation process. The anisotropy barrier is 89.4 cm−1 (112 K) and τ0 = 7.6 × 10−7 s. Irradiation of the Dy2Ru2 complex with blue light (443 nm) at 80 K resulted in the formation of nitrosyl linkage isomers of the RuNO fragment; the Td of reverse isomerisation is 195 K.

KW - INDUCED METASTABLE STATES

KW - HETEROMETALLIC COMPLEXES

KW - PHOTOCHROMIC CATION

KW - LINKAGE ISOMERS

KW - RUTHENIUM

KW - POLYOXOMETALATE

KW - FAMILY

KW - NI

KW - CO

KW - LN

UR - http://www.scopus.com/inward/record.url?scp=85046123692&partnerID=8YFLogxK

U2 - 10.1016/j.ica.2018.04.006

DO - 10.1016/j.ica.2018.04.006

M3 - Article

AN - SCOPUS:85046123692

VL - 479

SP - 135

EP - 140

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

SN - 0020-1693

ER -

ID: 12948694