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Adamenko, O. A.; Lukova, G. V.; Golubeva, N. D.; Smirnov, V. N.; Boǐko, G. N.; Pomogailo, A. D.; Uflyand, Igor Е.

doi:10.1023/a:1012948111002

Cited by 17 publications

(11 citation statements)

References 8 publications

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“…Their structures were studied by X‐ray diffraction (Figure 1) on suitable single crystals obtained by slow diffusion of a methanol solution of Na 2 [Mo 6 I 8 (MeO) 6 ] into diethyl ether and slow diffusion of dichloromethane solutions of 1 and 2 into cyclohexane. The apical ligands are coordinated through the methoxy oxygen in Na 2 [Mo 6 I 8 (MeO) 6 ] (Figure S4 in the Supporting Information) and through one of the oxygen atoms of the carboxylate in 1 and 2 , which is the common binding mode observed in [Mo 6 X 8 (R–COO) 6 ] 2– complexes (X = Cl, Br and I) 11,13,22. Average Mo–Mo, Mo–I i , and Mo–O a intramolecular distances and bond angles in 1 and 2 are similar to those reported for ( n Bu 4 N) 2 [Mo 6 I 8 (CF 3 COO) 6 ] and ( n Bu 4 N) 2 [Mo 6 I 8 (C 3 F 7 COO) 6 ] 11,23.…”

Section: Resultsmentioning

confidence: 99%

Hexamolybdenum Cluster Complexes with Pyrene and Anthracene Carboxylates: Ultrabright Red Emitters with the Antenna Effect

et al. 2014

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Phosphorescent hexamolybdenum cluster complexes with pyrene and anthracene carboxylates exhibit energy transfer from the grafted ligands to the {Mo6I8} core. The complex with the pyrene ligands exhibits the highest brightness of emission ever reported for a Mo6 cluster complex excited in the near‐UV region (ϵ355 = 2.3 105 M–1 cm–1, ΦL = 0.60). These antenna systems possess attractive features as UV/Red light convertors, optical oxygen sensors, or sensitizers of singlet oxygen.

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Section: Resultsmentioning

confidence: 99%

Hexamolybdenum Cluster Complexes with Pyrene and Anthracene Carboxylates: Ultrabright Red Emitters with the Antenna Effect

et al. 2014

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“…Compounds 1-4 and 6 were prepared according to previously published procedures. 1,4,12,13 All chemicals were obtained from Sigma-Aldrich and used as received. The solvents used for synthesis were dried and degassed by standard methods.…”

Section: Materials and General Methodsmentioning

confidence: 99%

“…Complexes 1-4 and 6 were prepared, purified, and characterised by previously described methods. 1,4,12,13 Complex 5 was obtained by substituting the apical bromine ligands on 2 with trifluoroacetate moieties using Ag(CF 3 COO) in dichloromethane. Because 5 has not been previously characterized, its structure was confirmed by X-ray diffraction of single-crystals obtained from gas diffusion of pentane into a concentrated solution of 5 in dichloromethane.…”

Section: Synthesis and Structurementioning

confidence: 99%

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A comparative study of the redox and excited state properties of (nBu4N)2[Mo6X14] and (nBu4N)2[Mo6X8(CF3COO)6] (X = Cl, Br, or I)

et al. 2013

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The excited-state dynamics, luminescence, and redox properties of a series of hexanuclear molybdenum cluster complexes, (nBu4N)2[Mo6X14] and (nBu4N)2[Mo6X8(CF3COO)6] (X = Cl, Br, or I), were investigated. Substitution of the apical halogen ligands for the trifluoroacetate ligands increased the oxidation potentials and induced a blue shift in the absorption and luminescence bands as well as a considerable increase in the luminescence quantum yields for heavy inner ligands. Time-resolved transient absorption measurements showed that the intersystem crossing from the excited singlet states is ultrafast with time constants ranging between <120 fs and 1.68 ps and leads to hot triplet states. The following cooling occurred at a ps time scale and was assigned to electronic redistribution within the emissive triplet state sublevels. The formation of singlet oxygen, O2((1)Δg), suggested earlier on the basis of photooxidation experiments for some complexes, was revised by direct measurements of O2((1)Δg) phosphorescence. We showed the effects of the attached ligands on key physico-chemical and photophysical parameters of the title complexes. The synthesis and structural characterisation of a new cluster complex, (nBu4N)2[Mo6Br8(CF3COO)6], completed the series. Our results demonstrated that the complexes with heavy inner ligands (Br, I) and apical trifluoroacetate ligands were photochemically and electrochemically stable, highly luminescent, and good sensitisers of O2((1)Δg).

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“…The direct incorporation of inorganic species in the polymer has to be circumvented because strong interactions between the organic and inorganic entities constituting the hybrid materials are pre-requisite to obtain fully homogeneous and stable hybrid material [56,57]. The common methodology is based on the covalent grafting of up to six polymerizable units in apical positions of the inorganic cluster core [58][59][60][61][62][63][64].…”

Section: New Nanostructured Materials Based On Mo 6 Nanocluster For Optical Applicationsmentioning

confidence: 99%

Inorganic Molybdenum Octahedral Nanosized Cluster Units, Versatile Functional Building Block for Nanoarchitectonics

Cordier

Grasset

Molard

et al. 2014

J Inorg Organomet Polym

107

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International audienceRecently, Nanoarchitectonics has been introducedas a new concept that refers to a technology systemfor arranging nanoscale structural units in a requiredarchitecture. Multifunctional properties are achieved by acombination of several materials in a well-defined architecture.In the frame of this concept, composite nanoarchitecturesrepresent a new class of nanostructured entitiesthat integrate various dissimilar nanoscale building blocksincluding clusters, particles, wires and films. The heterogeneouscomposite nanostructured materials are composedby definition of multi-(nano)components, each tailored toaddress different requirements. As one of the nanocomponents,nanometer sized metal clusters (\2 nm), whichconsist of less than a few dozens of metal atoms, could bedefined as a link between atom and nanoparticle. In thispaper, we will focus on our results on new nano-compositesinvolving Mo6 atom nanosized cluster units for optical,nanobiotechnology, energy and environmental applications

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Cited by 17 publications

References 8 publications

Hexamolybdenum Cluster Complexes with Pyrene and Anthracene Carboxylates: Ultrabright Red Emitters with the Antenna Effect

Hexamolybdenum Cluster Complexes with Pyrene and Anthracene Carboxylates: Ultrabright Red Emitters with the Antenna Effect

A comparative study of the redox and excited state properties of (nBu4N)2[Mo6X14] and (nBu4N)2[Mo6X8(CF3COO)6] (X = Cl, Br, or I)

Inorganic Molybdenum Octahedral Nanosized Cluster Units, Versatile Functional Building Block for Nanoarchitectonics

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