0000000001300436

AUTHOR

Cameron J. Kepert

showing 21 related works from this author

Guest Removal and External Pressure Variation Induce Spin Crossover in Halogen-Functionalized 2-D Hofmann Frameworks.

2020

The effect of halogen functionalization on the spin crossover (SCO) properties of a family of 2-D Hofmann framework materials, [FeIIPd(CN)4(thioX)2]·2H2O (X = Cl and Br; thioCl = (E)-1-(5-chlorothiophen-2-yl)-N-(4H-1,2,4-triazol-4-yl)methanimine) and thioBr = (E)-1-(5-bromothiophen-2-yl)-N-(4H-1,2,4-triazol-4-yl)methanimine)), is reported. Inclusion of both the chloro- and bromo-functionalized ligands into the Hofmann-type frameworks (1Cl·2H2O and 2Br·2H2O) results in a blocking of spin-state transitions due to internal chemical pressure effects derived by the collective steric bulk of the halogen atoms and guest molecules. Cooperative one-step SCO transitions are revealed by either guest r…

Steric effects010405 organic chemistryChemistryTransition temperature010402 general chemistry01 natural sciencesMagnetic susceptibility0104 chemical sciencesInorganic ChemistrySolventCrystallographySpin crossoverHalogenMoleculePhysical and Theoretical ChemistrySingle crystalInorganic chemistry
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An investigation of photo- and pressure-induced effects in a pair of isostructural two-dimensional spin-crossover framework materials

2014

International audience; Two new isostructural iron(II) spin-crossover (SCO) framework (SCOF) materials of the type [Fe(dpms)2 (NCX)2 ] (dpms=4,4'-dipyridylmethyl sulfide; X=S (SCOF-6(S)), X=Se (SCOF-6(Se))) have been synthesized. The 2D framework materials consist of undulating and interpenetrated rhomboid (4,4) nets. SCOF-6(S) displays an incomplete SCO transition with only approximately 30 % conversion of high-spin (HS) to low-spin iron(II) sites over the temperature range 300-4 K (T1/2 =75 K). In contrast, the NCSe(-) analogue, SCOF-6(Se), displays a complete SCO transition (T1/2 =135 K). Photomagnetic characterizations reveal quantitative light- induced excited spin-state trapping (LIES…

010405 organic chemistryChemistryIronOrganic ChemistrySpin transitionMineralogyGeneral Chemistry[CHIM.MATE]Chemical Sciences/Material chemistryAtmospheric temperature range010402 general chemistrySpin crossover01 natural sciencesCatalysisLIESST0104 chemical sciencesCoordination polymersChalcogenCrystallographySpin crossoverExcited stateMetastabilityMagnetic propertiesChalcogensIsostructural
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Exploiting Pressure To Induce a "Guest-Blocked" Spin Transition in a Framework Material.

2016

A new functionalized 1,2,4-triazole ligand, 4-[(E)-2-(5-methyl-2-thienyl)vinyl]-1,2,4-triazole (thiome), was prepared to assess the broad applicability of strategically producing multistep spin transitions in two-dimensional Hofmann-type materials of the type [FeIIPd(CN)4(R-1,2,4-trz)2]·nH2O (R-1,2,4-trz = a 4-functionalized 1,2,4-triazole ligand). A variety of structural and magnetic investigations on the resultant framework material [FeIIPd(CN)4(thiome)2]·2H2O (A·2H2O) reveal that a high-spin (HS) to low-spin (LS) transition is inhibited in A·2H2O due to a combination of guest and ligand steric bulk effects. The water molecules can be reversibly removed with retention of the porous host f…

Steric effects010405 organic chemistryLigandChemistryStereochemistryHydrostatic pressureSpin transitionInternal pressure010402 general chemistry01 natural sciences0104 chemical sciencesInorganic ChemistryCrystallographyMoleculePhysical and Theoretical ChemistryPorositySpin-½Inorganic chemistry
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CCDC 1997248: Experimental Crystal Structure Determination

2020

Related Article: Yuxing Zhang, Chaoqun Wang, Stefan Mecking, Zhongbao Jian|2020|Angew.Chem.,Int.Ed.|59|14296|doi:10.1002/anie.202004763

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinatescatena-(tetrakis(mu-cyano)-bis(1-(5-chlorothiophen-2-yl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium dihydrate)
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CCDC 1997247: Experimental Crystal Structure Determination

2020

Related Article: Yuxing Zhang, Chaoqun Wang, Stefan Mecking, Zhongbao Jian|2020|Angew.Chem.,Int.Ed.|59|14296|doi:10.1002/anie.202004763

Space GroupCrystallographycatena-(tetrakis(mu-cyano)-bis(1-(5-chlorothiophen-2-yl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1480120: Experimental Crystal Structure Determination

2016

Related Article: Natasha F. Sciortino, Florence Ragon, Katrina A. Zenere, Peter D. Southon, Gregory J. Halder, Karena W. Chapman, Lucía Piñeiro-López, José A. Real, Cameron J. Kepert, and Suzanne M. Neville|2016|Inorg.Chem.|55|10490|doi:10.1021/acs.inorgchem.6b01686

Space GroupCrystallographyCrystal SystemCrystal Structurecatena-[tetrakis(mu-cyano)-bis(1-(5-methyl-2-thienyl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium]Cell ParametersExperimental 3D Coordinates
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CCDC 1997244: Experimental Crystal Structure Determination

2020

Related Article: Yuxing Zhang, Chaoqun Wang, Stefan Mecking, Zhongbao Jian|2020|Angew.Chem.,Int.Ed.|59|14296|doi:10.1002/anie.202004763

Space GroupCrystallographycatena-(tetrakis(mu-cyano)-bis(1-(5-chlorothiophen-2-yl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1480121: Experimental Crystal Structure Determination

2016

Related Article: Natasha F. Sciortino, Florence Ragon, Katrina A. Zenere, Peter D. Southon, Gregory J. Halder, Karena W. Chapman, Lucía Piñeiro-López, José A. Real, Cameron J. Kepert, and Suzanne M. Neville|2016|Inorg.Chem.|55|10490|doi:10.1021/acs.inorgchem.6b01686

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterscatena-[tetrakis(mu-cyano)-bis(1-(5-methyl-2-thienyl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium dihydrate]Experimental 3D Coordinates
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CCDC 1480123: Experimental Crystal Structure Determination

2016

Related Article: Natasha F. Sciortino, Florence Ragon, Katrina A. Zenere, Peter D. Southon, Gregory J. Halder, Karena W. Chapman, Lucía Piñeiro-López, José A. Real, Cameron J. Kepert, and Suzanne M. Neville|2016|Inorg.Chem.|55|10490|doi:10.1021/acs.inorgchem.6b01686

Space GroupCrystallographyCrystal SystemCrystal Structurecatena-[tetrakis(mu-cyano)-bis(1-(5-methyl-2-thienyl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium]Cell ParametersExperimental 3D Coordinates
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CCDC 1997249: Experimental Crystal Structure Determination

2020

Related Article: Yuxing Zhang, Chaoqun Wang, Stefan Mecking, Zhongbao Jian|2020|Angew.Chem.,Int.Ed.|59|14296|doi:10.1002/anie.202004763

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinatescatena-(tetrakis(mu-cyano)-bis(1-(5-chlorothiophen-2-yl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium dihydrate)
researchProduct

CCDC 955785: Experimental Crystal Structure Determination

2014

Related Article: Natasha F. Sciortino, Suzanne M. Neville, Cedric Desplanches, Jean Francois Letard, Victor Martinez, Jose Antonio Real, Boujemaa Moubaraki, Keith Murray, Cameron J. Kepert|2014|Chem.-Eur.J.|20|7448|doi:10.1002/chem.201400367

Space GroupCrystallographycatena-[bis(mu~2~-44'-(sulfanediylbis(methylene))dipyridine)-bis(isoselenocyano)-iron]Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 955786: Experimental Crystal Structure Determination

2014

Related Article: Natasha F. Sciortino, Suzanne M. Neville, Cedric Desplanches, Jean Francois Letard, Victor Martinez, Jose Antonio Real, Boujemaa Moubaraki, Keith Murray, Cameron J. Kepert|2014|Chem.-Eur.J.|20|7448|doi:10.1002/chem.201400367

Space GroupCrystallographyCrystal Systemcatena-[bis(mu~2~-44'-(sulfanediylbis(methylene))dipyridine)-bis(isothiocyanato)-iron]Crystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1997246: Experimental Crystal Structure Determination

2020

Related Article: Yuxing Zhang, Chaoqun Wang, Stefan Mecking, Zhongbao Jian|2020|Angew.Chem.,Int.Ed.|59|14296|doi:10.1002/anie.202004763

Space GroupCrystallographycatena-(tetrakis(mu-cyano)-bis(1-(5-chlorothiophen-2-yl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1997245: Experimental Crystal Structure Determination

2020

Related Article: Yuxing Zhang, Chaoqun Wang, Stefan Mecking, Zhongbao Jian|2020|Angew.Chem.,Int.Ed.|59|14296|doi:10.1002/anie.202004763

catena-(tetrakis(mu-cyano)-bis(1-(5-bromothiophen-2-yl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium dihydrate)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 2016295: Experimental Crystal Structure Determination

2020

Related Article: Yuxing Zhang, Chaoqun Wang, Stefan Mecking, Zhongbao Jian|2020|Angew.Chem.,Int.Ed.|59|14296|doi:10.1002/anie.202004763

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinatescatena-(tetrakis(mu-cyano)-bis(1-(5-chlorothiophen-2-yl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium dihydrate)
researchProduct

CCDC 1480122: Experimental Crystal Structure Determination

2016

Related Article: Natasha F. Sciortino, Florence Ragon, Katrina A. Zenere, Peter D. Southon, Gregory J. Halder, Karena W. Chapman, Lucía Piñeiro-López, José A. Real, Cameron J. Kepert, and Suzanne M. Neville|2016|Inorg.Chem.|55|10490|doi:10.1021/acs.inorgchem.6b01686

Space GroupCrystallographyCrystal SystemCrystal Structurecatena-[tetrakis(mu-cyano)-bis(1-(5-methyl-2-thienyl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium]Cell ParametersExperimental 3D Coordinates
researchProduct

CCDC 955784: Experimental Crystal Structure Determination

2014

Related Article: Natasha F. Sciortino, Suzanne M. Neville, Cedric Desplanches, Jean Francois Letard, Victor Martinez, Jose Antonio Real, Boujemaa Moubaraki, Keith Murray, Cameron J. Kepert|2014|Chem.-Eur.J.|20|7448|doi:10.1002/chem.201400367

Space GroupCrystallographycatena-[bis(mu~2~-44'-(sulfanediylbis(methylene))dipyridine)-bis(isoselenocyano)-iron]Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 2016291: Experimental Crystal Structure Determination

2020

Related Article: Yuxing Zhang, Chaoqun Wang, Stefan Mecking, Zhongbao Jian|2020|Angew.Chem.,Int.Ed.|59|14296|doi:10.1002/anie.202004763

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinatescatena-(tetrakis(mu-cyano)-bis(1-(5-chlorothiophen-2-yl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium dihydrate)
researchProduct

CCDC 2016293: Experimental Crystal Structure Determination

2020

Related Article: Yuxing Zhang, Chaoqun Wang, Stefan Mecking, Zhongbao Jian|2020|Angew.Chem.,Int.Ed.|59|14296|doi:10.1002/anie.202004763

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinatescatena-(tetrakis(mu-cyano)-bis(1-(5-chlorothiophen-2-yl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium dihydrate)
researchProduct

CCDC 2016292: Experimental Crystal Structure Determination

2020

Related Article: Yuxing Zhang, Chaoqun Wang, Stefan Mecking, Zhongbao Jian|2020|Angew.Chem.,Int.Ed.|59|14296|doi:10.1002/anie.202004763

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinatescatena-(tetrakis(mu-cyano)-bis(1-(5-chlorothiophen-2-yl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium dihydrate)
researchProduct

CCDC 2016294: Experimental Crystal Structure Determination

2020

Related Article: Yuxing Zhang, Chaoqun Wang, Stefan Mecking, Zhongbao Jian|2020|Angew.Chem.,Int.Ed.|59|14296|doi:10.1002/anie.202004763

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinatescatena-(tetrakis(mu-cyano)-bis(1-(5-chlorothiophen-2-yl)-N-(4H-124-triazol-4-yl)methanimine)-iron-palladium dihydrate)
researchProduct