Research output: Contribution to journal › Article › peer-review
From Specific γ-CD/[Nb6Cl12(H2O)6]2+ Recognition to Biological Activity Tuning. / Ivanov, Anton A.; Pozmogova, Tatiana N.; Solovieva, Anastasiya O. et al.
In: Chemistry - A European Journal, Vol. 26, No. 33, 10.06.2020, p. 7479-7485.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - From Specific γ-CD/[Nb6Cl12(H2O)6]2+ Recognition to Biological Activity Tuning
AU - Ivanov, Anton A.
AU - Pozmogova, Tatiana N.
AU - Solovieva, Anastasiya O.
AU - Frolova, Tatiana S.
AU - Sinitsyna, Olga I.
AU - Lundovskaya, Olga V.
AU - Tsygankova, Alphiya R.
AU - Haouas, Mohamed
AU - Landy, David
AU - Benassi, Enrico
AU - Shestopalova, Lidiya V.
AU - Falaise, Clément
AU - Cadot, Emmanuel
AU - Shestopalov, Michael A.
AU - Abramov, Pavel A.
AU - Sokolov, Maxim N.
N1 - Publisher Copyright: © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/6/10
Y1 - 2020/6/10
N2 - Specific molecular recognition of γ-cyclodextrin (γ-CD) by the cationic hexanuclear niobium [Nb6Cl12(H2O)6]2+ cluster complex in aqueous solutions results in a 1:1 supramolecular assembly {[Nb6Cl12(H2O)6]@γ-CD}2+. NMR spectroscopy, isothermal titration calorimetry (ITC), and ESI-MS were used to study the interaction between the inorganic cluster and the organic macrocycle. Such molecular association affects the biological activity of [Nb6Cl12(H2O)6]2+, decreasing its cytotoxicity despite enhanced cellular uptake. The 1:1 stoichiometry is maintained in solution over a large window of the reagents’ ratio, but crystallization by slow evaporation produces a 1:2 host–guest complex [Nb6Cl12(H2O)6@(γ-CD)2]Cl2⋅20 H2O featuring the cluster encapsulated between two molecules of γ-CD. The 1:2 complex was characterized by XRD, elemental analysis, IR spectroscopy, and thermogravimetric analysis (TGA). Quantum chemical calculations were performed to model host–guest interaction.
AB - Specific molecular recognition of γ-cyclodextrin (γ-CD) by the cationic hexanuclear niobium [Nb6Cl12(H2O)6]2+ cluster complex in aqueous solutions results in a 1:1 supramolecular assembly {[Nb6Cl12(H2O)6]@γ-CD}2+. NMR spectroscopy, isothermal titration calorimetry (ITC), and ESI-MS were used to study the interaction between the inorganic cluster and the organic macrocycle. Such molecular association affects the biological activity of [Nb6Cl12(H2O)6]2+, decreasing its cytotoxicity despite enhanced cellular uptake. The 1:1 stoichiometry is maintained in solution over a large window of the reagents’ ratio, but crystallization by slow evaporation produces a 1:2 host–guest complex [Nb6Cl12(H2O)6@(γ-CD)2]Cl2⋅20 H2O featuring the cluster encapsulated between two molecules of γ-CD. The 1:2 complex was characterized by XRD, elemental analysis, IR spectroscopy, and thermogravimetric analysis (TGA). Quantum chemical calculations were performed to model host–guest interaction.
KW - cluster compounds
KW - cytotoxicity
KW - gamma-cyclodextrin
KW - genotoxicity
KW - niobium
KW - LUMINESCENCE
KW - CLUSTER COMPLEXES
KW - STABILITY
KW - BETA-CYCLODEXTRIN
KW - FORMULATION
KW - BINDING
KW - AZO-DYE
UR - http://www.scopus.com/inward/record.url?scp=85084972064&partnerID=8YFLogxK
U2 - 10.1002/chem.202000739
DO - 10.1002/chem.202000739
M3 - Article
C2 - 32181923
AN - SCOPUS:85084972064
VL - 26
SP - 7479
EP - 7485
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
SN - 0947-6539
IS - 33
ER -
ID: 24391044