Search results for: Barbara Sieklucka

Items from 1 to 20 out of 66 results

article

Back Cover: Room‐Temperature Bistability in a Ni–Fe Chain: Electron Transfer Controlled by Temperature, Pressure, Light, and Humidity (Angew. Chem. Int. Ed. 5/2021)

Mateusz Reczyński, Dawid Pinkowicz, Koji Nakabayashi, Christian Näther, more

Angewandte Chemie International Edition > 60 > 5 > 2708 - 2708

Stimuli‐responsive materials are important for the construction of molecular switches or sensors. In their Research Article on page 2330, Mateusz Reczyński, Shin‐ichi Ohkoshi, Beata Nowicka, and co‐workers present room‐temperature bistability in a CN‐bridged Ni–Fe coordination chain, which exhibits multiresponsive behavior with electron‐transfer transitions induced by temperature, light, pressure,...

article

Room‐Temperature Bistability in a Ni–Fe Chain: Electron Transfer Controlled by Temperature, Pressure, Light, and Humidity

Mateusz Reczyński, Dawid Pinkowicz, Koji Nakabayashi, Christian Näther, more

Angewandte Chemie International Edition > 60 > 5 > 2330 - 2338

Bistable and stimuli‐responsive molecule‐based materials are promising candidates for the development of molecular switches and sensors for future technologies. The CN‐bridged {NH₄[Ni(cyclam)][Fe(CN)₆]⋅5 H₂O}_n chain exists in two valence states: Ni^II‐Fe^III (1^HT) and Ni^III‐Fe^II (1^LT) and shows unique multiresponsivity under ambient conditions to various stimuli, including temperature, pressure, light,...

article

Rücktitelbild: Room‐Temperature Bistability in a Ni–Fe Chain: Electron Transfer Controlled by Temperature, Pressure, Light, and Humidity (Angew. Chem. 5/2021)

Mateusz Reczyński, Dawid Pinkowicz, Koji Nakabayashi, Christian Näther, more

Angewandte Chemie > 133 > 5 > 2740 - 2740

Stimuliresponsive Materialien sind wichtig für die Konstruktion von molekularen Schaltern oder Sensoren. In ihrem Forschungsartikel auf S. 2360 berichten Mateusz Reczyński, Shin‐ichi Ohkoshi, Beata Nowicka und Mitarbeiter über Raumtemperatur‐Bistabilität in einer CN‐verbrückten Ni‐Fe‐Koordinationskette, die ein multireaktives Verhalten mit Elektronentransferübergängen zeigt, die durch Temperatur,...

article

Room‐Temperature Bistability in a Ni–Fe Chain: Electron Transfer Controlled by Temperature, Pressure, Light, and Humidity

Mateusz Reczyński, Dawid Pinkowicz, Koji Nakabayashi, Christian Näther, more

Angewandte Chemie > 133 > 5 > 2360 - 2368

article

Guest‐Dependent Pressure‐Induced Spin Crossover in Fe^II₄[M^IV(CN)₈]₂ (M=Mo, W) Cluster‐Based Material Showing Persistent Solvent‐Driven Structural Transformations

Robert Jankowski, Mateusz Reczyński, Szymon Chorazy, Mikołaj Zychowicz, more

Chemistry – A European Journal > 26 > 49 > 11187 - 11198

Discrete molecular species that can perform certain functions in response to multiple external stimuli constitute a special class of multifunctional molecular materials called smart molecules. Herein, cyanido‐bridged coordination clusters {[Fe^II(2‐pyrpy)₂]₄[M^IV(CN)₈]₂}⋅4 MeOH⋅6 H₂O (M=Mo (1 solv), M=W (2 solv) and 2‐pyrpy=2‐(1‐pyrazolyl)pyridine are presented, which show persistent solvent driven...

article

Octacyanidorhenate(V) Ion as an Efficient Linker for Hysteretic Two‐Step Iron(II) Spin Crossover Switchable by Temperature, Light, and Pressure

Szymon Chorazy, Tomasz Charytanowicz, Dawid Pinkowicz, Junhao Wang, more

Angewandte Chemie > 132 > 36 > 15871 - 15879

A two‐step hysteretic Fe^II spin crossover (SCO) effect was achieved in programmed layered Cs{[Fe(3‐CNpy)₂][Re(CN)₈]}⋅H₂O (1) (3‐CNpy=3‐cyanopyridine) assembly consisting of cyanido‐bridged Fe^II‐Re^V square grid sheets bonded by Cs⁺ ions. The presence of two non‐equivalent Fe^II sites and the conjunction of 2D bimetallic coordination network with non‐covalent interlayer interactions involving Cs⁺, [Re...

article

Octacyanidorhenate(V) Ion as an Efficient Linker for Hysteretic Two‐Step Iron(II) Spin Crossover Switchable by Temperature, Light, and Pressure

Szymon Chorazy, Tomasz Charytanowicz, Dawid Pinkowicz, Junhao Wang, more

Angewandte Chemie International Edition > 59 > 36 > 15741 - 15749

article

Cover Feature: Photoluminescent Lanthanide(III) Single‐Molecule Magnets in Three‐Dimensional Polycyanidocuprate(I)‐Based Frameworks (Chem. Eur. J. 51/2019)

Jakub J. Zakrzewski, Szymon Chorazy, Koji Nakabayashi, Shin‐ichi Ohkoshi, more

Chemistry – A European Journal > 25 > 51 > 11795 - 11795

Quantum magnets in 3D frameworks: Unprecedented three‐dimensional cyanido‐bridged networks based on lanthanide(III) and copper(I) centers were synthesized. They exhibit tunable visible‐to‐NIR photoluminescence and slow relaxation of the magnetization effect related to the incorporated 4f metal complexes. The 3D network serves as an efficient coordination scaffold to achieve luminescent single‐molecule...

article

Photoluminescent Lanthanide(III) Single‐Molecule Magnets in Three‐Dimensional Polycyanidocuprate(I)‐Based Frameworks

Jakub J. Zakrzewski, Szymon Chorazy, Koji Nakabayashi, Shin‐ichi Ohkoshi, more

Chemistry – A European Journal > 25 > 51 > 11820 - 11825

Three‐dimensional bimetallic cyanido‐bridged frameworks, [Ln^III(2,2′‐bipyridine N,N′‐dioxide)₂(H₂O)][Cu^I₂(CN)₅]⋅5 H₂O (Ln=Dy, 1; Yb, 2), are reported. They exhibit the effect of slow relaxation of magnetization, leading to a magnetic hysteresis loop, and sensitized visible‐to‐near‐infrared photoluminescence. Both physical properties are related to the eight‐coordinated lanthanide(III) complexes embedded...

article

Light‐Induced Spin‐State Switching of the Mo^IV Centre in Trinuclear [Cu^II(diamine)₂]₂[Mo^IV(CN)₈] Molecules

Tomasz Korzeniak, Sujit Sasmal, Dawid Pinkowicz, Olaf Stefańczyk, more

European Journal of Inorganic Chemistry > 2018 > 19 > 2019 - 2025

New trinuclear molecules [Cu(meen)₂]₂[Mo^IV(CN)₈]·5H₂O (1) and [Cu(eten)₂]₂[Mo(CN)₈]·7H₂O (2) (meen = N‐methyl‐ethylenediamine; eten = N‐ethyl‐ethylenediamine) have been prepared and characterised by X‐ray diffraction and dc magnetometry. The crystal structure of 1 and 2 consists of trinuclear Cu₂Mo molecules interacting through weak semicoordination bonds and resulting in the formation of 2D and 3D...

article

Octacyanidotungstate(IV) Coordination Chains Demonstrate a Light‐Induced Excited Spin State Trapping Behavior and Magnetic Exchange Photoswitching

Michał Magott, Olaf Stefańczyk, Barbara Sieklucka, Dawid Pinkowicz

Angewandte Chemie International Edition > 56 > 43 > 13283 - 13287

A huge increase in the magnetization of two coordination chains based on tetravalent octacyanidometalates (W^IV and Mo^IV) is observed on irradiation with 436 nm light, while no such behavior is observed for the Nb^IV analogue. A photomagnetic response based solely on [W^IV(CN)₈]⁴⁻ is demonstrated for the first time. The observed behavior is attributed to the light‐induced excited spin state trapping...

article

Octacyanidotungstate(IV) Coordination Chains Demonstrate a Light‐Induced Excited Spin State Trapping Behavior and Magnetic Exchange Photoswitching

Michał Magott, Olaf Stefańczyk, Barbara Sieklucka, Dawid Pinkowicz

Angewandte Chemie > 129 > 43 > 13468 - 13472

article

Solvatomagnetic Studies on Cyano‐Bridged Bimetallic Chains Based on [Mn(cyclam)]³⁺ and Hexacyanometallates

Beata Nowicka, Michał Heczko, Michał Rams, Mateusz Reczyński, more

European Journal of Inorganic Chemistry > 2017 > 1 > 99 - 106

Structures and solvatomagnetic properties of two 1D CN‐bridged assemblies based on the complex [Mn(cyclam)]³⁺ (cyclam = 1,4,8,11‐tetraazacyclotetradecane) were characterised. The isostructural {[Mn(cyclam)][Cr(CN)₆]·6H₂O}_n (1·6H₂O) and {[Mn(cyclam)][Fe(CN)₆]·6H₂O}_n (2·6H₂O) chains crystallise in the space group C2/m. When dried in air at a slightly elevated temperature the hexahydrates undergo irreversible...

article

Structure dependent charge transfer in bipyrimidinium–octacyanotungstate ion pairs

Beata Nowicka, Wojciech Nitek, Piotr Pietrzyk, Barbara Sieklucka

Polyhedron > 2016 > 119 > C > 1-6

Two solid state forms of the {(bpymH₂)²⁺,[W^IV(CN)₈]⁴⁻} charge-transfer ion pair have been obtained in the reaction between 2,2′-bipyrimidine (bpym) and octacyanotungstate(IV) in acidic solution and characterised in terms of structure and spectroscopic properties: (bpymH₂)₂[W^IV(CN)₈]·4H₂O (1) and (PPh₄)₂(bpymH₂)[W^IV(CN)₈]·10H₂O (2). In contrast to the yellow potassium salt, compound 1 is red and shows...

article

Alternative Synthetic Route to Potassium Octacyanidoniobate(IV) and Its Molybdenum Congener

Gabriela Handzlik, Michał Magott, Barbara Sieklucka, Dawid Pinkowicz

European Journal of Inorganic Chemistry > 2016 > 30 > 4851 - 4851

Invited for the cover of this issue is the group of Dawid Pinkowicz at Jagiellonian University, Kraków, Poland. The cover image shows the isostructural octacyanidoniobate(IV) and octacyanidomolybdate(IV) anions – building blocks for various magnetic molecular materials.

article

Alternative Synthetic Route to Potassium Octacyanidoniobate(IV) and Its Molybdenum Congener

Gabriela Handzlik, Michał Magott, Barbara Sieklucka, Dawid Pinkowicz

European Journal of Inorganic Chemistry > 2016 > 30 > 4872 - 4877

Octacyanidometallates have been proven to be very useful molecular building blocks for the construction of various molecular materials with a strong emphasis on magnetic properties. However, their availability is still limited due to the preparation difficulties. Existing methods for their preparation consume large amounts of cyanide and require prolonged time for the synthesis. In this contribution...

article

Front Cover: Alternative Synthetic Route to Potassium Octacyanidoniobate(IV) and Its Molybdenum Congener (Eur. J. Inorg. Chem. 30/2016)

Gabriela Handzlik, Michał Magott, Barbara Sieklucka, Dawid Pinkowicz

European Journal of Inorganic Chemistry > 2016 > 30 > 4850 - 4850

The cover picture shows the isostructural octacyanidoniobate(IV) and octacyanidomolybdate(IV) anions – building blocks for the construction of various magnetic molecular materials. The improved preparation methods enable the easier and faster synthesis of both salts with higher yield, even in labs that are not specialized in operations under an inert gas atmosphere. The alternative synthetic route...

article

White Light Emissive Dy^III Single‐Molecule Magnets Sensitized by Diamagnetic [Co^III(CN)₆]³⁻ Linkers

Szymon Chorazy, Michał Rams, Koji Nakabayashi, Barbara Sieklucka, more

Chemistry – A European Journal > 22 > 22 > 7371 - 7375

The self‐assembly of Dy^III–3‐hydroxypyridine (3‐OHpy) complexes with hexacyanidocobaltate(III) anions in water produces cyanido‐bridged {[Dy^III(3‐OHpy)₂(H₂O)₄] [Co^III(CN)₆]}⋅H₂O (1) chains. They reveal a single‐molecule magnet (SMM) behavior with a large zero direct current (dc) field energy barrier, ΔE=266(12) cm⁻¹ (≈385 K), originating from the single‐ion property of eight‐coordinated Dy^III of an...

article

Magnetocaloric effect and critical behavior in Mn2-imidazole-[Nb(CN)8] molecular magnetic sponge

Magdalena Fitta, Robert Pełka, Marcin Gajewski, Marian Mihalik, more

Journal of Magnetism and Magnetic Materials > 2015 > 396 > C > 1-8

A comprehensive study of magnetocaloric effect (MCE) and critical behavior in the {Mn₂(imH)₂(H₂O)₄[Nb(CN)₈]·4H₂O}_n molecular magnet is reported. The compound is an example of a magnetic sponge, where structural changes provoked by dehydration process lead to the increase of T_c critical temperature from 25K for the as-synthesized sample (1) up to 60K for the anhydrous one (2). MCE and critical behavior...

article

Fe^II Spin‐Crossover Phenomenon in the Pentadecanuclear {Fe₉[Re(CN)₈]₆} Spherical Cluster

Szymon Chorazy, Robert Podgajny, Koji Nakabayashi, Jan Stanek, more

Angewandte Chemie > 127 > 17 > 5182 - 5186

The self‐assembly of iron(II) ions with rare octacyanidorhenate(V) metalloligands in a methanolic solution results in the formation of a nanometric pentadecanuclear {Fe^II₉[Re^V(CN)₈]₆(MeOH)₂₄}⋅10 MeOH (1) molecule with a six‐capped body‐centered cubic topology. The cluster demonstrates a thermally‐induced spin‐crossover phase transition at T_1/2=195 K which occurs selectively for a single Fe^II ion embedded...

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CYANIDES (12)
MAGNETIC PROPERTIES (10)
CRYSTAL ENGINEERING (6)
CYANIDE (5)
ELECTRON TRANSFER (5)
IRON (5)
MANGANESE (5)
BISTABILITY (4)
CRYSTAL STRUCTURES (4)
MOLECULAR SWITCHES (4)
MULTIRESPONSIVITY (4)
NIOBIUM (4)
OCTACYANOTUNGSTATE (4)
PHASE TRANSITIONS (4)
PHOTOMAGNETISM (4)
RHENIUM (4)
SPIN CROSSOVER (4)
CLUSTER COMPOUNDS (3)
CYANO BRIDGE (3)
LANTHANIDES (3)
MOLECULAR MAGNETS (3)
OCTACYANOMOLYBDATE (3)
CHARGE TRANSFER (2)
CLUSTERVERBINDUNGEN (2)
COORDINATION POLYMERS (2)
COPPER (2)
CRYSTAL STRUCTURE (2)
FRAMEWORK (2)
HOST–GUEST SYSTEMS (2)
LIESST (2)
LUMINESCENCE (2)
MAGNETISCHE EIGENSCHAFTEN (2)
MANGAN (2)
MOLECULAR MAGNETISM (2)
MOLECULAR MATERIALS (2)
MOLECULAR SQUARES (2)
MOLYBDENUM (2)
NIOB (2)
OCTACYANIDOMETALLATES (2)
OCTACYANOMETALLATES (2)
OCTACYANOTUNGSTATE(IV) (2)
PHOTOLUMINESCENCE (2)
SINGLE-MOLECULE MAGNETS (2)
WIRT‐GAST‐SYSTEME (2)
3D COORDINATION NETWORK (1)
AC SUSCEPTIBILITY (1)
BIPYRIDINEHEXACYANOTUNGSTATE (1)
BIPYRIDINEHEXACYANOTUNGSTATES (1)
BIPYRIMIDINIUM (1)
CHAIN STRUCTURES (1)
CHIRALITY (1)
CHROMIUM (1)
CIS-DIAQUABIS(2,2'-BIPIRYDYL)CHROMIUM(III) (1)
COBALT (1)
COMPOSES DE COORDINATION SUPRAMOLECULAIRE (1)
COOPERATIVE EFFECTS (1)
COORDINATION COMPOUNDS (1)
COPPER OCTACYANOMETALLATE (1)
CYANIDE LIGANDS (1)
CYANIDLIGANDEN (1)
CYANIDO BRIDGE (1)
CYANIDOMETALLATES (1)
CYANO-BRIDGE (1)
CYANO-BRIDGED COMPLEXES (1)
CYANO-BRIDGED COORDINATION COMPOUNDS (1)
CYANOMETALLATES (1)
CYCLAM (1)
DYSPROSIUM (1)
EISEN (1)
HELICAL STRUCTURES (1)
HETEROMETALLIC COMPLEXES (1)
HYBRID COMPOUND (1)
INGENIERIE CRISTALLINE (1)
ION PAIRS (1)
KINETICS (1)
KOOPERATIVE KATALYSE (1)
LADUNGSTRANSFER (1)
LIGAND (1)
MAGNETIC COUPLING (1)
MAGNETISM (1)
MANGANESE(II) COMPOUNDS (1)
MANGANESE(III) COMPLEX (1)
MECHANISM (1)
METAL-METAL INTERACTIONS (1)
MOLECULAR MAGNET (1)
MOLEKULARE MAGNETE (1)
MULTIFUNCTIONAL MATERIALS (1)
OCTACYANIDOMETALATES (1)
OCTACYANOMETALATES (1)
OCTACYANOMOLYBDATE(IV) (1)
OCTACYANOMOLYBDATE(IV, V) (1)
OCTACYANONIOBATE(IV) (1)
OCTACYANOTUNGSTATE(V) (1)
OKTACYANIDOMETALLATE (1)
PHOTOMAGNETISMUS (1)
PHOTOSCHALTER (1)
PHOTOSWITCHING (1)
PI INTERACTIONS (1)
PLATINUM(II, IV) (1)
POLYMERES DE COORDINATION (1)
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Inorganic Chemistry (14)
European Journal of Inorganic Chemistry (9)
Angewandte Chemie (8)
Angewandte Chemie International Edition (8)
Polyhedron (7)
Chemistry – A European Journal (5)
Coordination Chemistry Reviews (3)
Crystal Growth & Design (3)
Chemistry of Materials (2)
Inorganica Chimica Acta (2)
Journal of Magnetism and Magnetic Materials (2)
Comptes rendus - Chimie (1)
Inorganic Chemistry Communications (1)
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INFONA - science communication portal

Search results for: Barbara Sieklucka

Back Cover: Room‐Temperature Bistability in a Ni–Fe Chain: Electron Transfer Controlled by Temperature, Pressure, Light, and Humidity (Angew. Chem. Int. Ed. 5/2021)

Room‐Temperature Bistability in a Ni–Fe Chain: Electron Transfer Controlled by Temperature, Pressure, Light, and Humidity

Rücktitelbild: Room‐Temperature Bistability in a Ni–Fe Chain: Electron Transfer Controlled by Temperature, Pressure, Light, and Humidity (Angew. Chem. 5/2021)

Room‐Temperature Bistability in a Ni–Fe Chain: Electron Transfer Controlled by Temperature, Pressure, Light, and Humidity

Guest‐Dependent Pressure‐Induced Spin Crossover in Fe^II₄[M^IV(CN)₈]₂ (M=Mo, W) Cluster‐Based Material Showing Persistent Solvent‐Driven Structural Transformations

Octacyanidorhenate(V) Ion as an Efficient Linker for Hysteretic Two‐Step Iron(II) Spin Crossover Switchable by Temperature, Light, and Pressure

Octacyanidorhenate(V) Ion as an Efficient Linker for Hysteretic Two‐Step Iron(II) Spin Crossover Switchable by Temperature, Light, and Pressure

Cover Feature: Photoluminescent Lanthanide(III) Single‐Molecule Magnets in Three‐Dimensional Polycyanidocuprate(I)‐Based Frameworks (Chem. Eur. J. 51/2019)

Photoluminescent Lanthanide(III) Single‐Molecule Magnets in Three‐Dimensional Polycyanidocuprate(I)‐Based Frameworks

Light‐Induced Spin‐State Switching of the Mo^IV Centre in Trinuclear [Cu^II(diamine)₂]₂[Mo^IV(CN)₈] Molecules

Octacyanidotungstate(IV) Coordination Chains Demonstrate a Light‐Induced Excited Spin State Trapping Behavior and Magnetic Exchange Photoswitching

Octacyanidotungstate(IV) Coordination Chains Demonstrate a Light‐Induced Excited Spin State Trapping Behavior and Magnetic Exchange Photoswitching

Solvatomagnetic Studies on Cyano‐Bridged Bimetallic Chains Based on [Mn(cyclam)]³⁺ and Hexacyanometallates

Structure dependent charge transfer in bipyrimidinium–octacyanotungstate ion pairs

Alternative Synthetic Route to Potassium Octacyanidoniobate(IV) and Its Molybdenum Congener

Alternative Synthetic Route to Potassium Octacyanidoniobate(IV) and Its Molybdenum Congener

Front Cover: Alternative Synthetic Route to Potassium Octacyanidoniobate(IV) and Its Molybdenum Congener (Eur. J. Inorg. Chem. 30/2016)

White Light Emissive Dy^III Single‐Molecule Magnets Sensitized by Diamagnetic [Co^III(CN)₆]³⁻ Linkers

Magnetocaloric effect and critical behavior in Mn2-imidazole-[Nb(CN)8] molecular magnetic sponge

Fe^II Spin‐Crossover Phenomenon in the Pentadecanuclear {Fe₉[Re(CN)₈]₆} Spherical Cluster

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